Call us: +86 0755-82563503

Currency: $ US Dollar

Items : %s%s

Digital Isolators

Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Datasheet Factory Lead Time Lifecycle Status Mount Packaging Published Series Pbfree Code Part Status Moisture Sensitivity Level (MSL) Number of Terminations ECCN Code Depth Operating Supply Voltage Length RoHS Status Lead Free Contact Plating Number of Pins Additional Feature Package / Case REACH SVHC Height Width Thickness Mounting Type Weight Operating Temperature Technology Operating Supply Current Height Seated (Max) HTS Code Number of Functions Nominal Supply Current Type 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 Surface Mount Terminal Pitch JESD-30 Code Supply Voltage-Min (Vsup) Number of Channels Subcategory Qualification Status Power Supplies Supply Voltage-Max (Vsup) Max Power Dissipation Output Voltage Output Current Max Output Current Max Input Current Input Voltage-Nom Forward Voltage Data Rate Min Input Voltage Power Dissipation Propagation Delay Turn On Delay Time Supplier Device Package Rise Time Channel Type Screening Level Input Voltage (Min) Input Voltage (Max) Voltage - Supply Control Technique Switching Frequency-Max Voltage - Isolation Rise / Fall Time (Typ) Pulse Width Distortion (PWD) Propagation Delay tpLH / tpHL (Max) Common Mode Transient Immunity (Min) Inputs - Side 1/Side 2 Isolated Power Pulse Width Distortion (Max)
ADUM241D0BRIZ-RL ADUM241D0BRIZ-RL Analog Devices Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks PRODUCTION (Last Updated: 4 weeks ago) Tape & Reel (TR) iCoupler® no Active 3 (168 Hours) 16 12.75mm ROHS3 Compliant Contains Lead 16 16-SOIC (0.295, 7.50mm Width) Surface Mount -40°C~125°C Magnetic Coupling 1 General Purpose e3 Tin (Sn) DUAL GULL WING 260 1.8V 30 ADUM241 16 YES 1.27mm 1.7V 4 5.5V 150Mbps Unidirectional 1.7V~5.5V 5000Vrms 2.5ns 2.5ns 13ns, 13ns 75kV/μs 3/1 No 3ns
SI8660BB-B-IS1 SI8660BB-B-IS1 Silicon Labs 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Surface Mount Tube 2000 Active 2 (1 Year) 16 1.25mm 9.9mm RoHS Compliant 16 16-SOIC (0.154, 3.90mm Width) Unknown 3.9mm Surface Mount -40°C~125°C Capacitive Coupling 1.75mm 8542.39.00.01 1 26.2mA General Purpose DUAL GULL WING 5V 1.27mm 2.5V 6 Other Analog ICs 2.5/5V 5.5V 415mW 12.3mA 150Mbps 415mW 13 ns 4ns Unidirectional 2.5V~5.5V 2500Vrms 2.5ns 2.5ns 4.5 ns 13ns, 13ns 35kV/μs 6/0 No
SI8630ET-IS SI8630ET-IS Silicon Labs 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tube 2015 yes Active 2A (4 Weeks) 16 RoHS Compliant 16-SOIC (0.295, 7.50mm Width) Surface Mount -40°C~125°C Capacitive Coupling 2.65mm 1 General Purpose DUAL GULL WING 260 3.3V YES 1.27mm R-PDSO-G16 2.5V 3 5.5V 150Mbps 13 ns Unidirectional 2.5V~5.5V 5000Vrms 2.5ns 2.5ns 4.5 ns 13ns, 13ns 60kV/μs 3/0 No
SI8384PF-IUR SI8384PF-IUR Silicon Labs 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tape & Reel (TR) Active 2 (1 Year) 20-SSOP (0.154, 3.90mm Width) Surface Mount -40°C~125°C Capacitive Coupling General Purpose 8 2Mbps Unidirectional 2.25V~5.5V 2500Vrms 3.9ns 3.7ns 8/0 No
MAX14933ASE+T MAX14933ASE+T Maxim Integrated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 22 Weeks Tape & Reel (TR) 2016 Active 1 (Unlimited) ROHS3 Compliant 16-SOIC (0.154, 3.90mm Width) Surface Mount -40°C~125°C Capacitive Coupling I2C MAX14933 2 Bidirectional 2.25V~5.5V 2750Vrms 95 ns 25kV/μs (Typ) 2/2 No 65ns 95ns
MAX14930AAWE+ MAX14930AAWE+ Maxim Integrated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks Tube 2016 Active 1 (Unlimited) 16 ROHS3 Compliant 16-SOIC (0.295, 7.50mm Width) Surface Mount -40°C~125°C Capacitive Coupling 1 General Purpose DUAL GULL WING 3.3V MAX14930 YES R-PDSO-G16 1.71V 4 5.5V 1Mbps Unidirectional 1.71V~5.5V 2750Vrms 2ns 2ns 54.1ns, 55.3ns 25kV/μs (Typ) 4/0 No 4.5ns
ADUM6211ARSZ-RL7 ADUM6211ARSZ-RL7 Analog Devices Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks PRODUCTION (Last Updated: 1 month ago) Tape & Reel (TR) IsoPower®, iCoupler® no Active 1 (Unlimited) 20 EAR99 ROHS3 Compliant Contains Lead 20 ALSO WORKS WITH 5 VOLT INPUT VOLTAGE WHICH GIVES 5VOLT AND 3.3 VOLT OUTPUT 20-SSOP (0.209, 5.30mm Width) Surface Mount -40°C~105°C Magnetic Coupling 8543.70.99.60 1 General Purpose e3 Matte Tin (Sn) DUAL GULL WING 260 30 ADUM6211 20 YES 0.65mm 2 Other Analog ICs Not Qualified 3.3/5V 3.3V 3.3V 1Mbps 50 ns 15 ns Unidirectional 3V 3.6V 2.7V~5.5V PULSE WIDTH MODULATION 3750Vrms 2.5ns 2.5ns 10 ns 50ns, 50ns 25kV/μs 1/1 Yes
SI8661ED-B-ISR SI8661ED-B-ISR Silicon Labs 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tape & Reel (TR) 1997 Active 2A (4 Weeks) 16 10.3mm RoHS Compliant 16-SOIC (0.295, 7.50mm Width) Surface Mount 547.51434mg -40°C~125°C Capacitive Coupling 8542.39.00.01 1 General Purpose DUAL GULL WING 260 3.3V YES 1.27mm 2.375V 6 Other Analog ICs 2.5/5V 5.5V 415mW 150Mbps 13 ns Unidirectional 2.5V~5.5V 5000Vrms 2.5ns 2.5ns 4.5 ns 13ns, 13ns 35kV/μs 5/1 No
ISO7820LLDW ISO7820LLDW Texas Instruments 8.0689
Add to Cart

Min: 1

Mult: 1

0.00000000 6 Weeks ACTIVE (Last Updated: 1 week ago) Tube yes Active 2 (1 Year) 16 10.3mm ROHS3 Compliant Lead Free 16 16-SOIC (0.295, 7.50mm Width) 2.65mm 7.5mm 2.35mm Surface Mount -55°C~125°C Capacitive Coupling 1 General Purpose e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 260 3.3V ISO7820 YES 2 5.5V 100Mbps Unidirectional 2.25V~5.5V 5700Vrms 25ns, 25ns 100kV/μs 2/0 No 4.5ns
ISO7760FQDWRQ1 ISO7760FQDWRQ1 Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 6 Weeks Tape & Reel (TR) Automotive, AEC-Q100 yes Active 2 (1 Year) 16 10.3mm ROHS3 Compliant ALSO REQUIRED VCC2 2.25-5.5V SUPPLY; ALSO OPERATE WITH 3.3V AND 5V SUPPLY 16-SOIC (0.295, 7.50mm Width) Surface Mount -40°C~125°C Capacitive Coupling 6 CAN e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 2.5V ISO7760 YES 1.27mm 6 100Mbps Unidirectional 2.25V~5.5V 5000Vrms 1.1ns 1.4ns 16ns, 16ns 85kV/μs 6/0 No 4.9ns
ADUM2211SRIZ ADUM2211SRIZ Analog Devices Inc. 26.3041
Add to Cart

Min: 1

Mult: 1

0.00000000 download 8 Weeks PRODUCTION (Last Updated: 2 weeks ago) Tube iCoupler® no Active 3 (168 Hours) 16 EAR99 ROHS3 Compliant Contains Lead Tin 16 16-SOIC (0.295, 7.50mm Width) Surface Mount -40°C~125°C Magnetic Coupling 2 800μA General Purpose e3 DUAL GULL WING 260 30 ADUM2211 16 YES 2 1Mbps 150 ns 150 ns Unidirectional 3V~5.5V 5000Vrms 10ns 10ns 40 ns 150ns, 150ns 25kV/μs 1/1 No
ADUM142D1BRQZ ADUM142D1BRQZ Analog Devices Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks PRODUCTION (Last Updated: 1 month ago) Tube iCoupler® no Active 3 (168 Hours) 16 ROHS3 Compliant 16 16-SSOP (0.154, 3.90mm Width) Surface Mount -40°C~125°C Magnetic Coupling 1.75mm 1 General Purpose DUAL GULL WING 260 1.8V 30 ADUM142 16 YES 1.7V 4 5.5V 150Mbps Unidirectional 1.7V~5.5V 3000Vrms 2.5ns 2.5ns 13ns, 13ns 75kV/μs 2/2 No 3ns
ADUM141E1BRWZ-RL ADUM141E1BRWZ-RL Analog Devices Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 26 Weeks PRODUCTION (Last Updated: 3 weeks ago) Surface Mount Tape & Reel (TR) iCoupler® no Active 3 (168 Hours) 16 10.3mm ROHS3 Compliant Contains Lead 16 16-SOIC (0.295, 7.50mm Width) Surface Mount -40°C~125°C Magnetic Coupling 2.65mm 2 General Purpose e3 Matte Tin (Sn) DUAL GULL WING 260 1.8V ADUM141 16 1.27mm 1.7V 4 5.5V 150Mbps 13 ns Unidirectional 1.7V~5.5V 3750Vrms 2.5ns 2.5ns 3 ns 13ns, 13ns 75kV/μs 3/1 No
ADUM1300BRW ADUM1300BRW Rochester Electronics, LLC 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube iCoupler® yes Obsolete 3 (168 Hours) 16 Non-RoHS Compliant 16-SOIC (0.295, 7.50mm Width) Surface Mount -40°C~105°C Magnetic Coupling 2.65mm 3 General Purpose e3 MATTE TIN DUAL GULL WING 260 3V 40 16 YES 1.27mm R-PDSO-G16 2.7V 3 5.5V 10Mbps Unidirectional 2.7V~5.5V 2500Vrms 2.5ns 2.5ns 50ns, 50ns 25kV/μs 3/0 No 3ns
ADUM4472ARIZ-RL ADUM4472ARIZ-RL Analog Devices Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks PRODUCTION (Last Updated: 3 weeks ago) Tape & Reel (TR) IsoPower®, iCoupler® no Active 1 (Unlimited) 20 EAR99 15.3mm ROHS3 Compliant Contains Lead 20 20-SOIC (0.295, 7.50mm Width) Surface Mount -40°C~105°C Magnetic Coupling 1 General Purpose e3 Matte Tin (Sn) DUAL GULL WING 260 5V 30 ADUM4472 20 YES 1.27mm 4 Other Analog ICs Not Qualified 5V 400mA 3.3V 1Mbps 100 ns Unidirectional 3V 3.6V 3V~3.6V 4.5V~5.5V PULSE WIDTH MODULATION 515kHz 5000Vrms 2.5ns 2.5ns 40 ns 100ns, 100ns 25kV/μs 2/2 Yes
ADUM1301WSRWZ55 ADUM1301WSRWZ55 Analog Devices Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 Tube Automotive Obsolete 3 (168 Hours) ROHS3 Compliant 16-SOIC (0.295, 7.50mm Width) Surface Mount -40°C~125°C Magnetic Coupling General Purpose ADUM1301 3 1Mbps 16-SOIC Unidirectional 3V~5.5V 2500Vrms 2.5ns 2.5ns 100ns, 100ns 25kV/μs 2/1 No 40ns
SI83414AAA-IF SI83414AAA-IF Silicon Labs 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Active 2 (1 Year) 32-VFDFN Exposed Pad Surface Mount -40°C~125°C Capacitive Coupling SPI 4 Unidirectional 2.25V~5.5V 1500Vrms 3μs 3μs 2.3μs, 2.9μs (Typ) 100kV/μs 4/0 No 10μs Min
ADUM2401BRWZ ADUM2401BRWZ Analog Devices Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 24 Weeks PRODUCTION (Last Updated: 1 week ago) Tube iCoupler® no Active 1 (Unlimited) 16 EAR99 2.35mm 3.3V 10.5mm ROHS3 Compliant Contains Lead Tin 16 16-SOIC (0.295, 7.50mm Width) No SVHC 7.6mm Surface Mount -40°C~105°C Magnetic Coupling 2.65mm 1 530μA General Purpose e3 DUAL GULL WING 260 3V 30 ADUM2401 16 YES 1.27mm 4 22mA 10μA 10Mbps 50 ns 32 ns 3ns Unidirectional 2.7V~5.5V 5000Vrms 2.5ns 2.5ns 3 ns 50ns, 50ns 25kV/μs 3/1 No
SI8642AB-B-IS1R SI8642AB-B-IS1R Silicon Labs 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tape & Reel (TR) 2000 Active 2 (1 Year) 16 RoHS Compliant 16 16-SOIC (0.154, 3.90mm Width) Surface Mount -40°C~125°C Capacitive Coupling 3.6mA General Purpose DUAL GULL WING YES 1.27mm 4 Other Analog ICs 2.5/5V 275mW 1Mbps 35 ns 2 ns Unidirectional AEC-Q100 2.5V~5.5V 2500Vrms 2.5ns 2.5ns 25 ns 35ns, 35ns 35kV/μs 2/2 No
ADUM7410BRQZ ADUM7410BRQZ Analog Devices Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 Tube Obsolete 1 (Unlimited) ROHS3 Compliant 16-SSOP (0.154, 3.90mm Width) Surface Mount ADUM7410 16-QSOP
SI8410AB-D-IS SI8410AB-D-IS Silicon Labs 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks Tube 2000 yes Not For New Designs 2A (4 Weeks) 8 1.55mm 5mm RoHS Compliant 8 8-SOIC (0.154, 3.90mm Width) 4mm Surface Mount 95.396145mg -40°C~125°C Capacitive Coupling 6mA 1 General Purpose DUAL GULL WING 260 8 YES 1 2.7mA 1Mbps 35 ns 35 ns 5ns Unidirectional 2.7V~5.5V 2500Vrms 3.8ns 2.8ns 25 ns 35ns, 35ns 25kV/μs (Typ) 1/0 No
ADUM1241ARZ ADUM1241ARZ Analog Devices Inc. 3.7695
Add to Cart

Min: 1

Mult: 1

0.00000000 download 8 Weeks PRODUCTION (Last Updated: 3 weeks ago) Surface Mount Tube iCoupler® no Active 1 (Unlimited) 8 4.9mm ROHS3 Compliant Contains Lead 8 8-SOIC (0.154, 3.90mm Width) No SVHC Surface Mount -40°C~125°C Magnetic Coupling 306μA 1.75mm 2 General Purpose 3.6V DUAL GULL WING ADUM1241 8 2 2Mbps 3V 180 ns Unidirectional 2.25V~3.6V 3000Vrms 2ns 2ns 8 ns 180ns, 180ns 25kV/μs 1/1 No
ADUM151N0BRZ-RL7 ADUM151N0BRZ-RL7 Analog Devices Inc. 4.0893
Add to Cart

Min: 1

Mult: 1

0.00000000 download 8 Weeks PRODUCTION (Last Updated: 4 weeks ago) Tape & Reel (TR) iCoupler® no Active 3 (168 Hours) 16 9.9mm ROHS3 Compliant 16 16-SOIC (0.154, 3.90mm Width) Surface Mount -40°C~125°C Magnetic Coupling 1 General Purpose DUAL GULL WING 1.8V ADUM151 16 YES 1.27mm 1.7V 5 150Mbps Unidirectional 1.7V~5.5V 3000Vrms 2.5ns 2.5ns 13ns, 13ns 75kV/μs 4/1 No 4.5ns
ADUM142D0BRQZ ADUM142D0BRQZ Analog Devices Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks PRODUCTION (Last Updated: 1 month ago) Tube iCoupler® no Active 3 (168 Hours) 16 ROHS3 Compliant 16 16-SSOP (0.154, 3.90mm Width) Surface Mount -40°C~125°C Magnetic Coupling 1.75mm 1 General Purpose DUAL GULL WING 260 1.8V 30 ADUM142 16 YES 1.7V 4 5.5V 150Mbps Unidirectional 1.7V~5.5V 3000Vrms 2.5ns 2.5ns 13ns, 13ns 75kV/μs 2/2 No 3ns
ADUM1301CRWZ ADUM1301CRWZ Analog Devices Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks PRODUCTION (Last Updated: 3 weeks ago) Tube iCoupler® no Active 1 (Unlimited) 16 EAR99 2.35mm 5V 10.5mm ROHS3 Compliant Contains Lead 16 16-SOIC (0.295, 7.50mm Width) No SVHC 7.6mm Surface Mount -40°C~105°C Magnetic Coupling 8.2mA 2.65mm 1 8.2mA General Purpose e3 Matte Tin (Sn) DUAL GULL WING 260 3V 30 ADUM1301 16 YES 1.27mm 3 30mA 10μA 90Mbps 32 ns 32 ns 3ns Unidirectional 2.7V~5.5V 2500Vrms 2.5ns 2.5ns 2 ns 32ns, 32ns 25kV/μs 2/1 No
SI8717BC-A-IS SI8717BC-A-IS Silicon Labs 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tube 1997 Active 3 (168 Hours) RoHS Compliant 8 8-SOIC (0.154, 3.90mm Width) Unknown Surface Mount 95.396145mg -40°C~125°C Capacitive Coupling 1.7mA General Purpose 1 253mW 2.8V 15Mbps 50 ns 30 ns Unidirectional 2.5V~5.5V 3750Vrms 2.5ns 2.5ns 25 ns 50ns, 50ns 35kV/μs 1/0 No
SI8640ED-B-ISR SI8640ED-B-ISR Silicon Labs 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tape & Reel (TR) 1997 Active 2A (4 Weeks) 16 10.3mm RoHS Compliant 16-SOIC (0.295, 7.50mm Width) Surface Mount 547.51434mg -40°C~125°C Capacitive Coupling 2.65mm 1 General Purpose DUAL GULL WING 260 5V YES 1.27mm R-PDSO-G16 2.375V 4 5.5V 150Mbps 13 ns Unidirectional AEC-Q100 2.5V~5.5V 5000Vrms 2.5ns 2.5ns 4.5 ns 13ns, 13ns 35kV/μs 4/0 No
ISO7330FCDWR ISO7330FCDWR Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 6 Weeks ACTIVE (Last Updated: 4 days ago) Tape & Reel (TR) yes Active 2 (1 Year) 16 10.3mm ROHS3 Compliant Lead Free 16 IT ALSO OPERATES AT 5V 16-SOIC (0.295, 7.50mm Width) 2.65mm 7.5mm 2.35mm Surface Mount -40°C~125°C Capacitive Coupling 3 General Purpose e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 3.3V ISO7330 YES 1.27mm 3 25Mbps 58 ns Unidirectional 3V~5.5V 3000Vrms 3ns 2ns 4 ns 58ns, 58ns 25kV/μs 3/0 No
SI8442BA-D-IUR SI8442BA-D-IUR Silicon Labs 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tape & Reel (TR) 2000 Not For New Designs 3 (168 Hours) RoHS Compliant 16-SSOP (0.154, 3.90mm Width) Surface Mount -40°C~125°C Capacitive Coupling General Purpose 4 150Mbps 9.5 ns Unidirectional 2.7V~5.5V 1000Vrms 3.8ns 2.8ns 2.5 ns 9.5ns, 9.5ns 25kV/μs (Typ) 2/2 No
ISO7821LLSDWWR ISO7821LLSDWWR Texas Instruments 14.1788
Add to Cart

Min: 1

Mult: 1

0.00000000 12 Weeks ACTIVE (Last Updated: 5 days ago) Tape & Reel (TR) yes Active 3 (168 Hours) 16 EAR99 10.3mm ROHS3 Compliant 16 16-SOIC (0.551, 14.00mm Width) 2.65mm 14mm 2.45mm Surface Mount -55°C~125°C Capacitive Coupling 1 General Purpose e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 3.3V ISO7821 YES 3V 2 5.5V 150Mbps Unidirectional 3V~5.5V 5700Vrms 25ns, 25ns 100kV/μs 1/1 No
Settings Need Help?
Top FAQ's

How can I quickly find answers to my questions?

Please visit the Help & Support area of our website to find information regarding ordering, shipping, delivery and more.

What is my Order Status?

Registered users can track orders from their account dropdown, or click here. *Order Status may take 12 hours to update after initial order is placed.

How do I return product?

Users can begin the returns process by starting with our Returns Page.

How do I find price and availability?

Quotes can be created by registered users in myLists.

How do I create a 'HK JDW' Account?

Visit the Registration Page and enter the required information. You will receive an email confirmation when your registration is complete.

United Kingdom/GBP Summary
Fast Shipping Fast Delivery

Orders are typically delivered to United Kingdom within 48 hours depending on location.

Free Shipping Free Shipping

Free delivery to United Kingdom on orders of £33 or more. A delivery charge of £12 will be billed on all orders less than £33.

Incoterms Incoterms

DDP (Duty and customs paid by HK JDW)

Payment Options Payment Types

Credit account for qualified institutions and businesses

Payment in Advance by Wire Transfer

Visa Mastercard American Express PayPal Apple Pay Google Pay

Marketplace Marketplace Product

More Products From Fully Authorized Partners

Average Time to Ship 1-3 Days, extra ship charges may apply. Please see product page, cart, and checkout for actual ship speed.

Incoterms: CPT (Duty, customs, and applicable VAT/Tax due at time of delivery)

For more information visit Help & Support