Get Free Samples! Come fill out the form ! ! !

Call us: +86 0755-82563503

English

Currency: $ US Dollar

STM32F103C8T6
MFI343S00177
can I ask you a question please?
STM32F407VET6

Categories
- Integrated Circuits (ICs)
  - Integrated Circuits (ICs)
  - AC to DC Converter ICs
  - Active Filters
  - ADC
  - AFE
  - Analog Multipliers & Dividers
  - Analog Switches & Multiplexers ICs
  - Application Specific Microcontrollers
  - Application Specific Timer
  - Audio Amplifiers
  - Audio Special Purpose
  - Battery Chargers ICs
  - Battery Management ICs
  - Buffers & Transceivers
  - Capacitive Sensors
  - Clock Buffers & Drivers
  - Clock Generators
  - CODECs Interface ICs
  - Comparators
  - Configuration Proms for FPGAs
  - Controllers Interface ICs
  - Converting Interface ICs
  - Counters & Dividers
  - CPLDs
  - Current Regulator IC
  - DAC
  - DC DC Voltage Regulators
  - DC to DC converter
  - DDS
  - Delay Lines Timing ICs
  - Digital Potentiometers
  - Display Drivers ICs
  - Drivers Interface ICs
  - DSP
  - Embedded ICs Modules
  - Energy Metering ICs
  - FIFOs Memory
  - Flip Flops
  - FPGAs
  - FPGAs with Microcontrollers
  - Full & Half-Bridge Drivers ICs
  - Gate Drivers ICs
  - Gates & Inverters
  - Hot Swap Controllers
  - I/O Expanders
  - IC Batteries
  - Ideal Diode controller
  - Instrumentational OP Amps
  - Interface ICs Modules
  - Laser Driver ICs
  - Latches
  - LED Driver ICs
  - Lighting Controllers
  - Linear Comparators
  - Linear Regulator Controllers
  - Linear Voltage Regulators
  - Memory
  - Memory Batteries
  - Memory Controllers
  - Microcontrollers
  - Microprocessors
  - Modems ICs & Modules
  - Motor Drivers
  - Multi-Functional Gates & Inverters
  - Multivibrators
  - Multivibrators
  - PFC PMICs
  - PLDs
  - PoE Controllers
  - Power Supply Control ICs
  - Power Switches ICs
  - Programmable Timers & Oscillators
  - RMS to DC Converters
  - RTCs
  - Sensor & Detector Interface ICs
  - Serializers & Deserializers
  - Shift Registers
  - Signal Buffers
  - Signal Switches & Multiplexers
  - Signal Terminators
  - SoC
  - Special Purpose ADCs/DACs
  - Special Purpose Amplifiers
  - Special Purpose Analog Switches
  - Specialized ICs
  - Specialized Interface ICs
  - Specialized Power Management ICs
  - Specialized Voltage Regulators
  - Specialty Logic ICs
  - Switching Voltage Regulators
  - Telecom Interface ICs
  - Thermal Management
  - Touch Screen Controllers
  - UARTs
  - Universal Bus Functions
  - V/F & F/V Converters
  - Video Amps & Modules
  - Video Processing Linear ICs
  - Voice Record and Playback
  - Voltage Reference
  - Voltage Supervisors
  - Voltage Translators & Level Shifters
  - Integrated circuits, often referred to as ICs or microchips, are miniature electronic circuits that contain thousands to billions of transistors, resistors, capacitors, and other electronic components on a small semiconductor material. ICs are the building blocks of modern electronics and are used in a vast array of devices and systems, ranging from smartphones and computers to automotive electronics and medical devices. They provide compactness, high functionality, and improved performance by integrating multiple electronic functions onto a single chip.
- Connectors
  - Connectors
  - ARINC Connectors
  - Backplane Connector Contacts
  - Backplane Connectors Accessories
  - Backplane Connectors Housings
  - Backshells and Cable Clamps
  - Banana Tip Adapters
  - Banana Tip Binding Posts
  - Banana Tip Connectors Accessories
  - Banana Tip Jacks
  - Barrel Accessories
  - Barrel Adapters
  - Barrel Audio Connectors
  - Barrel Connectors
  - Barrel Power Connectors
  - Barrier Terminal Blocks
  - Between Series Adapters
  - Blade Type Power Connectors
  - Blade Type Power Connectors
  - Blade Type Power Connectors Accessories
  - Blade Type Power Connectors Housings
  - Board In Connectors
  - Board to Board Connectors
  - Card Edge Adapters
  - Card Edge Connectors Accessories
  - Card Edge Connectors Housings
  - Card Edge Contacts
  - Centronics Connectors
  - Circular Adapters
  - Circular Connectors
  - Circular Connectors Accessories
  - Circular Connectors Housings
  - Circular Contacts
  - Coaxial Connectors
  - Coaxial Connectors Accessories
  - D-Sub Adapters
  - D-Sub Connector Housings
  - D-Sub Connector Terminators
  - D-Sub Connectors
  - D-Sub Connectors Accessories
  - D-Sub Contacts
  - D-Sub Hoods
  - D-Sub Jackscrews
  - DIN 41612 Connectors
  - Din Rail Terminal Blocks
  - Edgeboard Connectors
  - Faceplates & Frames
  - Fiber Optic Adapters
  - Fiber Optic Connectors
  - Fiber Optic Connectors Accessories
  - Fiber Optic Connectors Housings
  - Flat Flexible Connector Housings
  - Flat Flexible Connectors
  - Flat Flexible Connectors Accessories
  - Flat Flexible Contacts
  - Foil Connectors
  - Hard Metric Connector
  - Headers & Male Pins
  - Heavy Duty Connectors Accessories
  - Heavy Duty Connectors Assemblies
  - Heavy Duty Connectors Frames
  - Heavy Duty Connectors Housings
  - Heavy Duty Connectors Modules
  - Heavy Duty Contacts
  - IC Adapters
  - IC and Component Sockets
  - IC Sockets Accessories
  - Inline Memory Module Sockets
  - Interface Modules Terminal Blocks
  - Keystone Accessories
  - Keystone Inserts
  - Knife Connectors
  - Leadframe Contacts
  - LGH Connectors
  - Magnetic Wire Terminals
  - Magnetics Modular Jacks
  - Memory Card Adapters
  - Memory Card Sockets
  - Memory Connectors Accessories
  - Modular Adapters
  - Modular Connectors Accessories
  - Modular Jacks
  - Modular Plug Housings
  - Modular Plugs
  - Multi Purpose Contacts
  - Panel Mount Connectors
  - Panel Mount Terminal Blocks
  - PC Pin Terminals
  - Photovoltaic Connectors
  - Photovoltaic Connectors Accessories
  - Photovoltaic Contacts
  - Pluggable Connectors
  - Pluggable Connectors Accessories
  - Pluggable Terminal Blocks
  - Power Distribution Terminal Blocks
  - Power Entry Connectors Accessories
  - Power Entry Connectors Modules
  - Quick-Connect & Quick-Disconnect Connectors
  - Rectangular Connectors
  - Rectangular Connectors Accessories
  - Rectangular Connectors Adapters
  - Rectangular Connectors Arrays
  - Rectangular Connectors Headers
  - Rectangular Connectors Housings
  - Rectangular Contact Inserts
  - Rectangular Terminals
  - RF Adapters
  - RF Contacts
  - RF Terminators
  - Ring Terminals
  - Screw Connectors
  - Shunts & Jumpers
  - Socket Terminals
  - Solder Lug Connectors
  - Spade Connectors
  - Specialized Backplane Connectors
  - Specialized Connectors
  - Specialized Terminal Blocks
  - Spring Loaded Contacts
  - Spring Loaded Rectangular Connectors
  - SSL Connectors
  - SSL Connectors Accessories
  - SSL Contacts
  - Terminal Block Adapters
  - Terminal Blocks - Contacts
  - Terminal Blocks Accessories
  - Terminal Jumpers
  - Terminal Junction Systems
  - Terminal Marker Strips
  - Terminal Strips and Turret Boards
  - Terminal Wire Ferrules
  - Terminals Accessories
  - Terminals Adapters
  - Terminals Housings
  - Transistor Sockets
  - Turret Connectors
  - Video Adapters
  - Video Connector Accessories
  - Video Connectors
  - Wire Pin Connectors
  - Wire Splice Connectors
  - Wire-to-Board Connectors
  - Wire-to-Board Terminal Blocks
  - Wiring Blocks Accessories
  - Wiring Modular Connectors
  - Connectors are devices used to establish electrical or mechanical connections between two or more components or systems. They provide a means for joining cables, wires, or other conductive elements, enabling the transmission of electrical signals, power, or data. Connectors come in a wide range of forms, including electrical connectors, coaxial connectors, modular connectors, and fiber optic connectors. They play a critical role in industries such as telecommunications, automotive, aerospace, and consumer electronics, facilitating reliable and secure connections.
- Discrete Semiconductors
  - Discrete Semiconductors
  - Arrays BJT Transistors
  - BJT Transistors Arrays
  - Bridge Rectifiers
  - DIACs and SIDACs
  - IGBTs Modules
  - IGBTs Transistors Arrays
  - JFETs Transistors
  - MOSFETs Transistors Arrays
  - Power Driver Modules
  - Pre-Biased BJT Transistors
  - Programmable Unijunction Transistors
  - Rectifier Diode Array
  - RF BJT Transistors
  - RF Diodes
  - RF MOSFETs Transistors
  - SCRs Thyristors
  - Single BJT Transistors
  - Single IGBTs
  - Single IGBTs
  - Single MOSFETs Transistors
  - Single-Phase Diode Rectifier
  - Specialized Transistors
  - Thyristors Modules
  - TRIACs Thyristors
  - Varactors
  - Zener Diode Arrays
  - Zener Single Diodes
  - Discrete Semiconductor refer to electronic components that are individual and separate from each other, as opposed to integrated circuits that contain multiple components on a single chip. These discrete components include diodes, transistors, thyristors, and other similar devices that perform specific functions in electronic circuits. They are commonly used in power supplies, amplifiers, and other electronic devices where precise control and regulation of electrical signals is required. Discrete Semiconductor Products are available in a variety of sizes, shapes, and specifications to meet the needs of different applications. They are widely used in the electronics industry and are essential components in many electronic devices.
- Capacitors
  - Capacitors
  - Aluminum Electrolytic Capacitors
  - Aluminum Polymer Capacitors
  - Capacitor Accessories
  - Capacitor Networks
  - Ceramic Capacitors
  - Ceramic Capacitors
  - Film Capacitors
  - Mica & PTFE Capacitors
  - Niobium Oxide Capacitors
  - Silicon Capacitors
  - Supercapacitors & EDLC
  - Tantalum Capacitors
  - Tantalum Polymer Capacitors
  - Thin Film Capacitors
  - Trimmers Variable
  - Capacitors are electronic components that store and release electrical energy. They consist of two conductive plates separated by an insulating material known as a dielectric. Capacitors are widely used in electronic circuits for various purposes, including energy storage, filtering, decoupling, timing, and coupling signals. They are available in different types, such as electrolytic capacitors, ceramic capacitors, and tantalum capacitors, each with unique characteristics suitable for different applications.
- Sensors
  - Sensors
  - CdS Cells
  - Accelerometers
  - Accessories
  - Amplifiers
  - Analog & Digital Sensor
  - Analog & Digital Sensors
  - Analog Optical Sensors
  - Angle & Linear Position Measuring Sensors
  - Camera Modules
  - Color Sensors
  - Current Sensors
  - Distance Measuring Sensors
  - Dust Sensors
  - Encoders
  - Float & Level Sensors
  - Flow Sensors
  - Force Sensors
  - Gas Sensors
  - Gyroscopes
  - Humidity Sensors
  - Image Sensors
  - IMUs
  - Inclinometers
  - IrDA Transceiver Modules
  - Junction Blocks
  - Logic Optical Sensors
  - Logic Photo Detectors
  - Logic Photointerrupters
  - LVDT Transducers
  - Magnetic Compass Sensors Modules
  - Magnetic Linear Sensors ICs
  - Magnetic Position Sensors Modules
  - Magnetic Switches
  - Mechanical Temperature Sensors
  - Multi Purpose Magnets
  - Multifunction
  - NTC Thermistors
  - Occupancy Sensors
  - Optical Motion Sensors
  - Optical Sensors Remote Receiver
  - Photodiodes
  - Photoelectric Sensors
  - Phototransistors
  - Proximity Sensors
  - PTC Thermistors
  - RTD
  - Sensor Cable Accessories
  - Sensor Cable Assemblies
  - Sensor Matched Magnets
  - Shock Sensors
  - Solar Cells
  - Solid State Thermostats
  - Specialized Sensors
  - Strain Gauges
  - Thermocouple Temperature Sensors
  - Tilt Switch Sensors
  - Touch Sensors
  - Transducers
  - Transistor Optical Sensors
  - Ultrasonic Receivers
  - UV Sensors
  - Vibration Sensors
  - Sensors are devices that detect and measure physical or environmental parameters and convert them into electrical signals. They enable the acquisition of real-world data for monitoring, control, and feedback purposes. Sensors can detect variables such as temperature, pressure, light, motion, proximity, and many others. They find application in diverse fields, including automotive systems, consumer electronics, industrial automation, healthcare, and environmental monitoring.
- Resistors
  - Resistors
  - Chassis Mount Resistors
  - Chip SMD Resistors
  - Chip SMD Resistors
  - Resistor Accessories
  - Resistor Arrays
  - Specialized Resistors
  - Through Hole Resistors
  - Resistors are passive electronic components designed to impede the flow of electric current in a circuit. They are used to control current levels, divide voltage, and limit power dissipation. Resistors are available in various types, including fixed resistors, variable resistors (potentiometers), and specialized resistors for specific applications such as high power or precision requirements. They are fundamental components in electronic circuits, playing roles in voltage regulation, signal conditioning, and impedance matching.
- Isolators
  - Isolators
  - Digital Isolators
  - Isolated Gate Drivers
  - Logic Optoisolators
  - Photovoltaic Optoisolators
  - Specialized Isolators
  - Triac Optoisolators
  - Isolators, also known as isolation devices or isolating components, are electronic components designed to electrically separate or isolate different parts of a circuit or system. They provide protection by preventing unwanted electrical currents, noise, or interference from affecting sensitive components or systems. Isolators are commonly used in applications where electrical isolation is crucial, such as power supplies, communication systems, motor control, and industrial automation. They ensure reliable operation, safety, and protection from electrical disturbances or faults.
- Board Mount Power Supplies
  - Board Mount Power Supplies
  - Board Mount AC DC Converters
  - Board Mount Accessories
  - Board Mount DC DC Converters
  - Off-board LED Drivers
  - Box and enclosure products refer to electronic components that are designed to protect and house electronic devices. These products come in a variety of shapes and sizes, and are typically made from materials such as plastic, metal, or fiberglass. Box and enclosure products are essential for protecting electronic components from environmental factors such as dust, moisture, and temperature fluctuations. They also provide a secure and organized way to store and transport electronic devices. Box and enclosure products are commonly used in industries such as telecommunications, aerospace, and automotive, as well as in consumer electronics.
- RF/IF & RFID
  - RF/IF & RFID
  - Attenuators
  - Balun
  - RF Accessories
  - RF Amplifiers
  - RF Antennas
  - RF Boards
  - RF Demodulators
  - RF Detectors
  - RF Directional Coupler
  - RF Front End
  - RF Misc ICs and Modules
  - RF Mixers
  - RF Modulators
  - RF Multiplexers
  - RF Power Controller ICs
  - RF Power Dividers
  - RF Receivers
  - RF Shields
  - RF Switches
  - RF Transceiver ICs
  - RF Transceiver Modules
  - RF Transmitter
  - RF Transmitters
  - RFI & EMI Contacts
  - RFI & EMI Materials
  - RFID Accessories
  - RFID Antennas
  - RFID Boards
  - RFID ICs
  - RFID Reader Modules
  - RFID Tags
  - RF power dividers/splitters are electronic components that are used to divide or split an incoming RF signal into multiple output signals. These components are commonly used in communication systems, such as radio and television broadcasting, as well as in radar and satellite communication systems. RF power dividers/splitters are designed to maintain signal integrity and minimize signal loss, ensuring that each output signal is of equal strength and quality. They come in various configurations, including 2-way, 3-way, 4-way, and 8-way, and can be used in both indoor and outdoor applications. RF power dividers/splitters are essential components in any RF system that requires signal distribution.
- Circuit Protection
  - Circuit Protection
  - Circuit Breakers
  - Circuit Protection Accessories
  - Electrical Fuses
  - Fuseholders
  - Fuses
  - GDT
  - GFCI
  - ICL
  - Lighting Protection
  - PTC Resettable Fuses
  - Surge Suppression ICs
  - Thermal Fuses
  - TVS Diodes
  - TVS Mixed Technology
  - TVS SPDs
  - TVS Thyristors
  - TVS Varistors
  - Circuit protection is a crucial aspect of electronic components classification. It refers to the measures taken to prevent damage to electronic circuits due to overvoltage, overcurrent, or short circuits. Circuit protection devices such as fuses, circuit breakers, surge protectors, and voltage regulators are used to safeguard electronic components from damage caused by power surges, lightning strikes, and other electrical disturbances. These devices are designed to interrupt the flow of current when the voltage or current exceeds a safe level, thereby protecting the circuit and preventing damage to the electronic components. Circuit protection is essential for ensuring the reliability and longevity of electronic devices and systems.
- Crystals
  - Crystals
  - Crystals
  - Crystals Accessories
  - Oscillators
  - Pin Configurable Oscillators
  - Programmable Oscillators
  - Resonators
  - Stand Alone Programmers
  - Voltage Controlled Oscillators
  - Crystals, in the context of electronics, refer to quartz crystals or other similar crystalline structures used as precise timing references or frequency-determining elements. These crystals exhibit a phenomenon called piezoelectricity, which allows them to generate a stable and accurate electrical signal when subjected to mechanical stress or voltage. Crystals are extensively used in oscillators
- Inductors
  - Inductors
  - Adjustable Inductors
  - Delay Lines
  - Fixed Inductors
  - Signal Transformers
  - Wireless Charging Coils
  - Inductors are passive electronic components that store electrical energy in the form of a magnetic field. They are typically made of a coil of wire wound around a core material and are used in various electrical circuits and systems. Inductors resist changes in current flow and are commonly employed in filtering, energy storage, impedance matching, and signal conditioning applications. They play a vital role in applications such as power supplies, radio frequency (RF) circuits, motor control, and electromagnetic compatibility (EMC) solutions.
- Filters
  - Filters
  - Cable Ferrites
  - Ceramic Filters
  - Common Mode Chokes
  - DSL Filters
  - EMI/RFI Filters
  - Feed Through Capacitors
  - Ferrite Beads and Chips
  - Ferrite Disks and Plates
  - Filters Accessories
  - Helical Filters
  - Monolithic Crystals
  - Power Line Filter Modules
  - RF Filters
  - SAW Filters
  - Filters are electronic components designed to selectively allow or block certain frequencies or ranges of frequencies in a signal or waveform. They are used to remove unwanted noise, interference, or specific frequency components, and to shape or modify the frequency response of a circuit or system. Filters can be classified into different types, such as low-pass, high-pass, band-pass, and band-stop filters, each serving specific purposes in applications ranging from audio and communication systems to power electronics and signal processing.
- View All

Items : %s%s

AC to DC Converter ICs

Name	Manufacturer	Quantity	Datasheet	Factory Lead Time	Lifecycle Status	Mount	Packaging	Published	Series	Pbfree Code	Part Status	Moisture Sensitivity Level (MSL)	Number of Terminations	Termination	ECCN Code	Max Operating Temperature	Min Operating Temperature	Operating Supply Voltage	Length	RoHS Status	Lead Free	Radiation Hardening	Number of Pins	Additional Feature	Package / Case	Max Supply Voltage	REACH SVHC	Frequency	Height	Width	Thickness	Mounting Type	Weight	Operating Temperature	Technology	Operating Supply Current	Max Supply Current	Height Seated (Max)	Manufacturer Package Identifier	HTS Code	Number of Functions	Nominal Supply Current	Max Frequency	Nominal Input Voltage	Max Supply Voltage (AC)	Power Rating	Max Input Voltage	JESD-609 Code	Terminal Finish	Terminal Position	Terminal Form	Peak Reflow Temperature (Cel)	Supply Voltage	Time@Peak Reflow Temperature-Max (s)	Base Part Number	Pin Count	Temperature Grade	Surface Mount	Terminal Pitch	JESD-30 Code	Number of Channels	Subcategory	Qualification Status	Max Power Dissipation	Output Voltage	Output Current-Max	Number of Outputs	Output Current	Voltage - Output	Output Power	Max Output Current	Input Voltage-Nom	Analog IC - Other Type	Voltage - Breakdown	Current - Output	Min Input Voltage	Power Dissipation	Supply Current-Max (Isup)	Max Output Voltage	Quiescent Current	Rise Time	Fall Time (Typ)	Frequency (Max)	Control Mode	Input Voltage (Min)	Input Voltage (Max)	Power (Watts)	Min Supply Voltage (AC)	Fault Protection	Min Input Voltage (AC)	Max Input Voltage (AC)	Control Technique	Switcher Configuration	Topology	Max Duty Cycle	Voltage - Supply (Vcc/Vdd)	Control Features	Frequency - Switching	Internal Switch(s)	Voltage - Start Up	Duty Cycle	Output Isolation	Isolation	Duty Cycle (Max)
ISL6844IRZ-T	Intersil (Renesas Electronics America)	RFQ Min: 1 Mult: 1	download			Surface Mount	Tape & Reel (TR)	2001		yes	Active	1	8		EAR99	105°C	-40°C		3mm	RoHS Compliant	Lead Free	No			DFN					2mm					BICMOS						1							e3	Matte Tin (Sn) - annealed	DUAL		260		40		8	INDUSTRIAL		0.5mm	R-PDSO-N8		Switching Regulator or Controllers					1		20.3V			15V	SWITCHING CONTROLLER		1A						20ns	20 ns		CURRENT-MODE								PULSE WIDTH MODULATION	SINGLE	Flyback	48 %			2MHz						48 %
INN3370C-H302-TL	Power Integrations	RFQ Min: 1 Mult: 1	download	8 Weeks			Tape & Reel (TR)		InnoSwitch™3-CP		Active	3 (168 Hours)								RoHS Compliant					24-PowerSMD Module (0.425, 10.80mm Width), 17 Leads							Surface Mount		-40°C~105°C TA																																							SWITCHING CONTROLLER																Current Limiting, Over Temperature, Over Voltage					Flyback, Secondary Side SR			Soft Start, Sync		Yes			Isolated
ISL6844IU	Intersil (Renesas Electronics America)	RFQ Min: 1 Mult: 1	download					2001			Discontinued	1	8		EAR99	105°C	-40°C		3mm	RoHS Compliant	Contains Lead				MSOP					3mm					BICMOS			1.1mm		8542.39.00.01	1							e0	Tin/Lead (Sn/Pb)	DUAL	GULL WING	240		NOT SPECIFIED		8	INDUSTRIAL	YES	0.65mm	S-PDSO-G8		Switching Regulator or Controllers	Not Qualified			1A						15V	SWITCHING CONTROLLER											CURRENT-MODE	15V	18V						PULSE WIDTH MODULATION	SINGLE	Flyback				2MHz						48 %
MAX5974AETE+	Maxim Integrated	RFQ Min: 1 Mult: 1	download			Surface Mount	Tube	2011		yes	Active	1 (Unlimited)	16		EAR99			21V	3mm	ROHS3 Compliant			16	ALSO HAS CONTROL MODE OF IPK	16-WFQFN Exposed Pad					3mm		Surface Mount		-40°C~85°C TA	BICMOS	1.8mA		0.8mm			1							e3	Matte Tin (Sn)	QUAD					MAX5974	16			0.5mm			Switching Regulator or Controllers					1	1A				12V	SWITCHING CONTROLLER								27ns	14 ns		VOLTAGE-MODE					Current Limiting, Over Temperature, Short Circuit			PULSE WIDTH MODULATION	SINGLE	Forward	82 %	7V~26V	EN, Frequency Control, Soft Start, Sync	100kHz~600kHz	No	16V	80%	Isolated	Non-Isolated
SI9120DY-T1-E3	Vishay Siliconix	RFQ Min: 1 Mult: 1	download			Surface Mount	Tape & Reel (TR)	2005		yes	Obsolete	1 (Unlimited)	16	SMD/SMT	EAR99				9.9mm	ROHS3 Compliant			16		16-SOIC (0.154, 3.90mm Width)		Unknown	3MHz		3.9mm		Surface Mount	547.485991mg	-40°C~85°C TA	BCDMOS	1.5mA					1			450V			450V	e3	Matte Tin (Sn)	DUAL	GULL WING	260		40	SI9120	16						Switching Regulator or Controllers		900mW	4V		1	125mA			125mA	10V	SWITCHING CONTROLLER				900mW		4V		40ns	75 ns		CURRENT-MODE								PULSE WIDTH MODULATION	SINGLE	Flyback, Forward	50 %	9.5V~13.5V		40kHz~1MHz	No			Isolated
UC2866N	Rochester Electronics	RFQ Min: 1 Mult: 1					Tube			yes	Obsolete	3 (168 Hours)	16						19.305mm	ROHS3 Compliant					16-DIP (0.300, 7.62mm)					7.62mm		Through Hole		-25°C~85°C TA				5.08mm			1							e4	NICKEL PALLADIUM GOLD	DUAL		NOT SPECIFIED		NOT SPECIFIED		16		NO	2.54mm	R-PDIP-T16						1.5A						12V	SWITCHING CONTROLLER											VOLTAGE-MODE	11.5V	20V						RESONANT CONTROL		Full-Bridge, Half-Bridge, Push-Pull		10.5V~22V	Soft Start	10kHz~1MHz	Yes	16.5V		Non-Isolated
UCC2808AQDR-1Q1	Texas Instruments	RFQ Min: 1 Mult: 1	download
ISL6842IU	Intersil (Renesas Electronics America)	RFQ Min: 1 Mult: 1	download					2001			Discontinued	1	8		EAR99	105°C	-40°C		3mm	RoHS Compliant	Contains Lead				MSOP					3mm					BICMOS			1.1mm		8542.39.00.01	1							e0	Tin/Lead (Sn/Pb)	DUAL	GULL WING	240		NOT SPECIFIED		8	INDUSTRIAL	YES	0.65mm	S-PDSO-G8		Switching Regulator or Controllers	Not Qualified			1A						15V	SWITCHING CONTROLLER											CURRENT-MODE	15V	18V						PULSE WIDTH MODULATION	SINGLE	Flyback				2MHz						96 %
VIPER53DIP-E	STMicroelectronics	RFQ Min: 1 Mult: 1	download	10 Weeks		Surface Mount, Through Hole	Tube		VIPER™		Active	1 (Unlimited)	8		EAR99				10.16mm	ROHS3 Compliant	Lead Free	No	8		8-DIP (0.300, 7.62mm)		No SVHC	100kHz	4.95mm	7.11mm		Through Hole	930.006106mg	-40°C~150°C TC		9mA	11mA				1	9mA				50W	265V	e3	Matte Tin (Sn) - annealed	DUAL					VIPER53	8			2.54mm		1	Switching Regulator or Controllers		30W	620V			1.6A		30W		13V	SWITCHING REGULATOR			85V	30W				50ns	100 ns		CURRENT-MODE					Current Limiting, Over Load, Over Temperature, Short Circuit	85V	265V	PULSE WIDTH MODULATION	SINGLE	Flyback		8.4V~19V	EN, Frequency Control, Soft Start	Up to 300kHz	Yes	11.5V		Isolated
VIPER100A-E	STMicroelectronics	RFQ Min: 1 Mult: 1	download			Through Hole	Tube		VIPER™		Obsolete	1 (Unlimited)	5		EAR99	125°C	25°C		10.4mm	ROHS3 Compliant	Lead Free	No	5		Pentawatt-5 HV (Bent and Staggered Leads)		No SVHC	200kHz	20.3mm	4.8mm		Surface Mount	4.535924g		MOS	12mA	16mA		Pentawatt HV-P023H3		1			13V			230V	e3	Matte Tin (Sn)	ZIG-ZAG					VIPER100	5						Switching Regulator or Controllers		82W	700V		1	3A				13V	SWITCHING REGULATOR				82W			12mA	50ns	100 ns		CURRENT-MODE			100W		Current Limiting, Over Temperature		230V	PULSE WIDTH MODULATION	SINGLE	Flyback	12 %	8V~15V	EN, Frequency Control, Soft Start	Up to 200kHz	Yes	11V		Isolated
STR3A155	Sanken	RFQ Min: 1 Mult: 1	download	12 Weeks		Through Hole	Bulk	1998	STR3A100	yes	Active	1 (Unlimited)	8		EAR99				9.4mm	RoHS Compliant	Lead Free				8-DIP (0.300, 7.62mm)					7.62mm		Through Hole		-40°C~115°C TA				4.5mm		8542.39.00.01	1									DUAL		NOT SPECIFIED	18V	NOT SPECIFIED					2.54mm	R-PDIP-T8				65W									SWITCHING REGULATOR	650V										CURRENT-MODE					Current Limiting, Over Load, Over Temperature, Over Voltage			PULSE WIDTH MODULATION		Flyback		8.1V~32V		67kHz	Yes	15.3V	74%	Isolated
HR1000AGS	Monolithic Power Systems (MPS)	RFQ Min: 1 Mult: 1	download	16 Weeks		Surface Mount	Tube	2012			Active	2 (1 Year)			EAR99					ROHS3 Compliant	Lead Free		16		16-SOIC (0.154, 3.90mm Width)							Surface Mount		-40°C~125°C TJ						8542.39.00.01								e3	Matte Tin (Sn)																19V			4.7A																					Over Temperature, Over Voltage					Half-Bridge		13V~15.5V	Soft Start	Up to 600kHz	No		50%	Isolated
AP31261KTR-G1	Diodes Incorporated	RFQ Min: 1 Mult: 1	download	23 Weeks		Surface Mount	Tape & Reel (TR)	2015			Active	3 (168 Hours)	6		EAR99			25V		ROHS3 Compliant			6		SOT-23-6							Surface Mount		-40°C~150°C TJ				1.45mm		8542.39.00.01	1							e3	Matte Tin (Sn)	DUAL	GULL WING	260		30					0.95mm			Switching Regulator or Controllers						350mA				16V	SWITCHING CONTROLLER								150ns	50 ns		CURRENT-MODE	10V				Current Limiting, Over Load, Over Temperature, Over Voltage			PULSE WIDTH MODULATION	SINGLE	Flyback	80 %	10V~25V		65kHz	No	15.8V	75%	Isolated
UCC3895DWG4	Texas Instruments	RFQ Min: 1 Mult: 1		6 Weeks	ACTIVE (Last Updated: 5 days ago)	Surface Mount	Tube			yes	Active	2 (1 Year)	20		EAR99				12.8mm	ROHS3 Compliant	Lead Free		20	ALSO OPERATES IN CURRENT MODE	20-SOIC (0.295, 7.50mm Width)			1MHz	2.65mm	7.5mm	2.35mm	Surface Mount	569.003279mg	-55°C~150°C TJ	BICMOS						1							e4	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	GULL WING	260	12V		UCC3895	20			1.27mm			Switching Regulator or Controllers			250mV		4	10mA				12V	SWITCHING CONTROLLER					6mA						VOLTAGE-MODE	10V	16.5V						PULSE WIDTH MODULATION	PHASE-SHIFT	Full-Bridge	100 %	10V~16.5V	Frequency Control, Soft Start, Sync		No	11V	100%	Isolated
ISL8844AAUZ	Renesas Electronics America	RFQ Min: 1 Mult: 1	download	6 Weeks			Tube				Active	1 (Unlimited)	8						3mm	ROHS3 Compliant					8-TSSOP, 8-MSOP (0.118, 3.00mm Width)					3mm		Surface Mount		-40°C~105°C TA				1.1mm			1							e3	MATTE TIN	DUAL	GULL WING				ISL8844A	8		YES	0.65mm	S-PDSO-G8												15V	SWITCHING CONTROLLER											CURRENT-MODE	9V	30V			Current Limiting			PULSE FREQUENCY MODULATION		Boost, Flyback		8.8V~30V	Frequency Control	Up to 2MHz	No	14.4V	48%	Non-Isolated
UCC28221PWRG4	Texas Instruments	RFQ Min: 1 Mult: 1	download				Tape & Reel (TR)				Obsolete	1 (Unlimited)	20		EAR99				6.5mm	ROHS3 Compliant	Lead Free		20		20-TSSOP (0.173, 4.40mm Width)			2MHz		4.4mm		Surface Mount	76.997305mg	-55°C~150°C TJ	BICMOS						1			48V						DUAL	GULL WING				UCC28221	20		YES	0.65mm			Switching Regulator or Controllers			400mV		2	10mA				12V	DUAL SWITCHING CONTROLLER								10ns	10 ns		CURRENT-MODE					Current Limiting, Over Voltage			PULSE WIDTH MODULATION	PUSH-PULL	Flyback	77 %	8.4V~14.5V	Soft Start		No	13V	75%	Isolated
NCP1360BBCCYSNT1G	ON Semiconductor	RFQ Min: 1 Mult: 1	download	52 Weeks	ACTIVE (Last Updated: 4 days ago)		Tape & Reel (TR)	2012		yes	Active	3 (168 Hours)	6						3mm	RoHS Compliant					SOT-23-6 Thin, TSOT-23-6					1.5mm		Surface Mount		-40°C~125°C TJ	CMOS			1.1mm			1							e3	Tin (Sn)	DUAL	GULL WING		12V					YES	0.95mm	R-PDSO-G6													SWITCHING CONTROLLER					2.5mA						CURRENT-MODE			20W		Current Limiting, Over Power, Over Voltage, Short Circuit			PULSE WIDTH MODULATION		Flyback		6.5V~28V		110kHz	No	18V		Isolated
ISL8842AABZ	Renesas Electronics America	RFQ Min: 1 Mult: 1	download	7 Weeks			Tube				Active	3 (168 Hours)	8						4.9mm	ROHS3 Compliant					8-SOIC (0.154, 3.90mm Width)					3.9mm		Surface Mount		-40°C~105°C TA				1.75mm			1							e3	MATTE TIN	DUAL	GULL WING				ISL8842A	8		YES	1.27mm	R-PDSO-G8												15V	SWITCHING CONTROLLER											CURRENT-MODE	9V	30V			Current Limiting			PULSE FREQUENCY MODULATION		Boost, Flyback		8.8V~30V	Frequency Control	Up to 2MHz	No	14.4V	96%	Non-Isolated
NCP1216AD65R2	ON Semiconductor	RFQ Min: 1 Mult: 1	download			Surface Mount	Tape & Reel (TR)	2007			Obsolete	3 (168 Hours)	8		EAR99				4.9mm	Non-RoHS Compliant	Contains Lead		8		8-SOIC (0.154, 3.90mm Width)					3.9mm		Surface Mount		0°C~150°C TJ	CMOS			1.75mm			1							e0	Tin/Lead (Sn/Pb)	DUAL	GULL WING				NCP1216	8			1.27mm			Switching Regulator or Controllers				0.5A						11V	SWITCHING CONTROLLER								60ns	20 ns		CURRENT-MODE	11V				Over Load, Over Temperature, Short Circuit			PULSE WIDTH MODULATION	SINGLE	Flyback	50 %	10V~16V		65kHz	No		46.5%	Isolated
NCP1340A6DR2G	ON Semiconductor	RFQ Min: 1 Mult: 1	download	7 Weeks	ACTIVE (Last Updated: 4 days ago)		Tape & Reel (TR)	2011		yes	Active	1	8						4.9mm	ROHS3 Compliant					8-SOIC (0.154, 3.90mm Width)					3.9mm		Surface Mount		-40°C~125°C TJ				1.75mm			1							e3	Tin (Sn)	DUAL	GULL WING							YES	1.25mm	R-PDSO-G8												12V	SWITCHING CONTROLLER											CURRENT-MODE	9V	28V			Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage, Short Circuit			RESONANT CONTROL		Flyback		9V~28V			No	17V		Isolated
UCC2813DTR-2G4	Texas Instruments	RFQ Min: 1 Mult: 1				Surface Mount	Tape & Reel (TR)				Obsolete	1 (Unlimited)	8		EAR99				4.9mm	ROHS3 Compliant	Lead Free		8		8-SOIC (0.154, 3.90mm Width)			1MHz		3.9mm		Surface Mount	72.603129mg	-55°C~150°C TJ	BICMOS						1							e4	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	GULL WING	260	10V		UCC2813	8						Switching Regulator or Controllers			1V		1	200mA				10V	SWITCHING CONTROLLER					30mA			41ns	44 ns		CURRENT-MODE	9.3V							PULSE WIDTH MODULATION	SINGLE	Boost, Flyback, Forward	100 %	8.3V~12V	Frequency Control		No	12.5V	99%	Either
NCP1076BBP100G	ON Semiconductor	RFQ Min: 1 Mult: 1	download	4 Weeks			Tube			yes	Active	Not Applicable			EAR99										8-DIP (0.300, 7.62mm), 7 Leads							Through Hole		-40°C~125°C TJ						8542.39.00.01												NOT SPECIFIED		NOT SPECIFIED																			SWITCHING CONTROLLER	700V													31W		Current Limiting, Over Power, Over Temperature, Over Voltage, Short Circuit					Flyback		6.5V~20V		100kHz	Yes	8.4V	68%	Isolated
UC3861N	Texas Instruments	RFQ Min: 1 Mult: 1	download	6 Weeks	ACTIVE (Last Updated: 2 days ago)		Tube			yes	Active	1 (Unlimited)	16		EAR99				19.3mm	ROHS3 Compliant	Lead Free	No	16		16-DIP (0.300, 7.62mm)			500kHz	5.08mm	6.35mm	3.9mm	Through Hole	1.053808g	0°C~70°C TA	BIPOLAR						1							e4	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL			12V		UC3861	16		NO				Switching Regulator or Controllers			1.7V		2	500mA				12V	SWITCHING CONTROLLER								25ns	25 ns		VOLTAGE-MODE	11.5V							RESONANT CONTROL		Full-Bridge, Half-Bridge, Push-Pull	50 %	10.5V~22V	Soft Start	10kHz~1MHz	Yes	16.5V	100 %	Non-Isolated
UCC28632D	Texas Instruments	RFQ Min: 1 Mult: 1		16 Weeks	ACTIVE (Last Updated: 3 days ago)	Surface Mount	Tube			yes	Active	2 (1 Year)	7		EAR99				4.9mm	ROHS3 Compliant	Lead Free		7	ALSO OPERATES IN FM CONTROL TECHNIQUE	8-SOIC (0.154, 3.90mm Width), 7 Leads				1.75mm	3.91mm	1.58mm	Surface Mount		-40°C~125°C TJ							1							e4	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	GULL WING				UCC28632									30W								12V	SWITCHING CONTROLLER											CURRENT-MODE					Current Limiting, Over Load, Over Temperature, Over Voltage			PULSE WIDTH MODULATION	SINGLE	Flyback		8V~20V		200Hz~120kHz	No	14.75V	70%	Isolated
UCC25701N	Texas Instruments	RFQ Min: 1 Mult: 1	download	6 Weeks	ACTIVE (Last Updated: 2 days ago)		Tube			yes	Active	1 (Unlimited)	14		EAR99				19.3mm	ROHS3 Compliant	Lead Free		14		14-DIP (0.300, 7.62mm)		No SVHC	700kHz	5.08mm	6.35mm	3.9mm	Through Hole	1.620005g	-55°C~150°C TJ	BICMOS						1			4V				e4	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL			11V		UCC25701	14		NO	2.54mm			Switching Regulator or Controllers			400mV		1	100mA				11V	SWITCHING CONTROLLER					20mA		750μA	20ns	20 ns		VOLTAGE-MODE					Current Limiting			PULSE WIDTH MODULATION	SINGLE	Boost, Flyback, Forward	100 %	9V~15V	Soft Start, Sync		No	13V	99%	Isolated
L6566B	STMicroelectronics	RFQ Min: 1 Mult: 1	download	12 Weeks	ACTIVE (Last Updated: 7 months ago)	Surface Mount	Tube				Active	3 (168 Hours)	16		EAR99				10mm	ROHS3 Compliant	Lead Free		16	ALSO CONFIGURE IN RESONANT CONTROL	16-SOIC (0.154, 3.90mm Width)		No SVHC		1.65mm	4mm		Surface Mount		-40°C~150°C TJ			4.6mA			8542.39.00.01	1							e4	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	GULL WING				L6566	16			1.27mm			Switching Regulator or Controllers		750mW	5V			800mA		750mW		12V	POWER FACTOR CONTROLLER								50ns	40 ns		CURRENT-MODE	10.6V	23V			Current Limiting, Over Load			PULSE WIDTH MODULATION	BOOST	Flyback	75 %	8V~23V	Soft Start	10kHz~300kHz	No	14V		Isolated
UCC3807N-2G4	Texas Instruments	RFQ Min: 1 Mult: 1				Through Hole							8		EAR99	70°C	0°C		9.81mm	RoHS Compliant	Lead Free	No	8		PDIP	13.5V		1MHz	4.57mm	6.35mm			523.190449mg		BICMOS						1							e4	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL						8	COMMERCIAL		2.54mm			Switching Regulator or Controllers					1		400mV			10V	SWITCHING CONTROLLER		100mA						20ns	20 ns	1MHz	CURRENT-MODE	9V							PULSE WIDTH MODULATION	SINGLE	Flyback, Boost	81 %			1MHz						81 %
MC44603ADW	ON Semiconductor	RFQ Min: 1 Mult: 1	download			Surface Mount	Tube	2005	GreenLine™		Obsolete	3 (168 Hours)	16		EAR99					Non-RoHS Compliant	Contains Lead		16	ALSO CONFIGURABLE IN CURRENT MODE	16-SOIC (0.295, 7.50mm Width)					7.5mm		Surface Mount		-25°C~150°C TJ	BIPOLAR			2.65mm			1		250kHz					e0	Tin/Lead (Sn/Pb)	DUAL	GULL WING	240		30	MC44603A	16						Switching Regulator or Controllers					1	750A				12V	SWITCHING CONTROLLER											VOLTAGE-MODE					Current Limiting, Over Voltage			PULSE WIDTH MODULATION	SINGLE	Flyback		9V~18V	Soft Start, Sync	Up to 250kHz	No	14.5V	80%	Isolated
LNK353GN-TL	Power Integrations	RFQ Min: 1 Mult: 1	download	12 Weeks			Tape & Reel (TR)	2004	LinkSwitch®-HF	yes	Not For New Designs	1 (Unlimited)	7		EAR99				9.575mm	RoHS Compliant	Lead Free	No	8		8-SMD (7 Leads), Gull Wing					6.35mm		Surface Mount		-40°C~150°C TJ							1	280μA			265V				Pure Matte Tin (Sn)	DUAL						8		YES	2.54mm	R-PDSO-G7				4W	5.8V	0.4A							SWITCHING REGULATOR	700V													4W	85V	Current Limiting, Open Loop, Over Temperature, Short Circuit			PULSE WIDTH MODULATION	SINGLE	Flyback	63 %			200kHz	Yes			Isolated
UCC2808APWTR-1	Texas Instruments	RFQ Min: 1 Mult: 1	download			Surface Mount	Tape & Reel (TR)			no	Obsolete	2 (1 Year)	8						4.4mm	ROHS3 Compliant	Contains Lead		8		8-TSSOP (0.173, 4.40mm Width)			1MHz		3mm		Surface Mount		-55°C~150°C TJ	BICMOS						1							e4	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	GULL WING	260			UCC2808	8			0.65mm			Switching Regulator or Controllers			500mV		2	100mA				10V	SWITCHING CONTROLLER								25ns	25 ns		CURRENT-MODE	9V	13V						PULSE WIDTH MODULATION		Full-Bridge, Half-Bridge, Push-Pull	50 %	8.3V~15V	Frequency Control		No	12.5V	49%	Isolated

ISL6844IRZ-T Intersil (Renesas Electronics America)
8 TerminationsAC to DC power converter1 Outputs2MHz

Price: 0.0000
RFQ
INN3370C-H302-TL Power Integrations
AC to DC power converterInnoSwitch?3-CP Series

Price: 0.0000
RFQ
ISL6844IU Intersil (Renesas Electronics America)
8 TerminationsAC to DC power converter2MHz

Price: 0.0000
RFQ
MAX5974AETE+ Maxim Integrated
16 Terminations7V~26V 16 Pin MAX5974 AC to DC power converter1 Outputs100kHz~600kHz

Price: 0.0000
RFQ
SI9120DY-T1-E3 Vishay Siliconix
16 Terminations9.5V~13.5V 16 Pin SI9120 AC to DC power converter1 Outputs40kHz~1MHz

Price: 0.0000
RFQ
UC2866N Rochester Electronics
16 Terminations10.5V~22V AC to DC power converter10kHz~1MHz

Price: 0.0000
RFQ
UCC2808AQDR-1Q1 Texas Instruments
Low Power Current Mode Push-Pull PWM

Price: 0.0000
RFQ
ISL6842IU Intersil (Renesas Electronics America)
8 TerminationsAC to DC power converter2MHz

Price: 0.0000
RFQ
VIPER53DIP-E STMicroelectronics
8 Terminations8.4V~19V 8 Pin VIPER53 AC to DC power converterVIPER? Series Up to 300kHz

Price: 0.0000
RFQ
VIPER100A-E STMicroelectronics
5 Terminations8V~15V 5 Pin VIPER100 AC to DC power converterVIPER? Series 1 OutputsUp to 200kHz

Price: 0.0000
RFQ
STR3A155 Sanken
8 Terminations8.1V~32V AC to DC power converterSTR3A100 Series 67kHz

Price: 0.0000
RFQ
HR1000AGS Monolithic Power Systems (MPS)
13V~15.5V 16 Pin AC to DC power converterUp to 600kHz

Price: 0.0000
RFQ
AP31261KTR-G1 Diodes Incorporated
6 Terminations10V~25V 6 Pin AC to DC power converter65kHz

Price: 0.0000
RFQ
UCC3895DWG4 Texas Instruments
20 Terminations10V~16.5V 20 Pin UCC3895 AC to DC power converter4 Outputs

Price: 0.0000
RFQ
ISL8844AAUZ Renesas Electronics America
8 Terminations8.8V~30V ISL8844A AC to DC power converterUp to 2MHz

Price: 0.0000
RFQ
UCC28221PWRG4 Texas Instruments
20 Terminations8.4V~14.5V 20 Pin UCC28221 AC to DC power converter2 Outputs

Price: 0.0000
RFQ
NCP1360BBCCYSNT1G ON Semiconductor
6 Terminations6.5V~28V AC to DC power converter110kHz

Price: 0.0000
RFQ
ISL8842AABZ Renesas Electronics America
8 Terminations8.8V~30V ISL8842A AC to DC power converterUp to 2MHz

Price: 0.0000
RFQ
NCP1216AD65R2 ON Semiconductor
8 Terminations10V~16V 8 Pin NCP1216 AC to DC power converter65kHz

Price: 0.0000
RFQ
NCP1340A6DR2G ON Semiconductor
8 Terminations9V~28V AC to DC power converter

Price: 0.0000
RFQ
UCC2813DTR-2G4 Texas Instruments
8 Terminations8.3V~12V 8 Pin UCC2813 AC to DC power converter1 Outputs

Price: 0.0000
RFQ
NCP1076BBP100G ON Semiconductor
6.5V~20V AC to DC power converter100kHz

Price: 0.0000
RFQ
UC3861N Texas Instruments
16 Terminations10.5V~22V 16 Pin UC3861 AC to DC power converter2 Outputs10kHz~1MHz

Price: 0.0000
RFQ
UCC28632D Texas Instruments
7 Terminations8V~20V 7 Pin UCC28632 AC to DC power converter200Hz~120kHz

Price: 0.0000
RFQ
UCC25701N Texas Instruments
14 Terminations9V~15V 14 Pin UCC25701 AC to DC power converter1 Outputs

Price: 0.0000
RFQ
L6566B STMicroelectronics
16 Terminations8V~23V 16 Pin L6566 AC to DC power converter10kHz~300kHz

Price: 0.0000
RFQ
UCC3807N-2G4 Texas Instruments
8 Terminations8 Pin AC to DC power converter1 Outputs1MHz

Price: 0.0000
RFQ
MC44603ADW ON Semiconductor
16 Terminations9V~18V 16 Pin MC44603A AC to DC power converterGreenLine? Series 1 OutputsUp to 250kHz

Price: 0.0000
RFQ
LNK353GN-TL Power Integrations
7 Terminations8 Pin AC to DC power converterLinkSwitch?-HF Series 200kHz Min 85V VMax 265V V

Price: 0.0000
RFQ
UCC2808APWTR-1 Texas Instruments
8 Terminations8.3V~15V 8 Pin UCC2808 AC to DC power converter2 Outputs

Price: 0.0000
RFQ