Call us: +86 0755-82563503

Currency: $ US Dollar

Items : %s%s

RTCs

Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Datasheet Factory Lead Time Mount Packaging Published Series Pbfree Code Part Status Moisture Sensitivity Level (MSL) Number of Terminations ECCN Code Max Operating Temperature Min Operating Temperature Operating Supply Voltage Length RoHS Status Lead Free Contact Plating Radiation Hardening Number of Pins Additional Feature Package / Case Interface Max Supply Voltage REACH SVHC Reach Compliance Code Min Supply Voltage Frequency Height Width Mounting Type Weight Operating Temperature Technology Operating Supply Current Height Seated (Max) HTS Code Type 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 Supply Voltage-Min (Vsup) Operating Temperature (Max) Operating Temperature (Min) Subcategory Qualification Status Power Supplies Supply Voltage-Max (Vsup) Max Power Dissipation Feature Number of Voltages Monitored Supplier Device Package Number of Terminals Logic Function Access Time Accuracy Memory Size Number of Bits Voltage - Supply Time Format External Data Bus Width uPs/uCs/Peripheral ICs Type Clock Frequency Time-Min Interrupt Capability Volatile Information Access Method Number of Timers Date Format Current - Timekeeping (Max) Voltage - Supply, Battery
DS1742-85+ DS1742-85+ Maxim Integrated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Tube 2012 yes Obsolete 1 (Unlimited) 24 EAR99 70°C 0°C 5V 31.75mm ROHS3 Compliant No 24 Parallel 5.5V 4.5V CMOS 5.08mm 8473.30.11.80 e3 MATTE TIN DUAL 5V 24 COMMERCIAL 2.54mm Timer or RTC 5V Clock 2kB HH:MM:SS 8 SECONDS N NO YY-MM-DD-dd
PT7C4337BWEX PT7C4337BWEX Diodes Incorporated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 20 Weeks Tape & Reel (TR) Active 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C TA Clock/Calendar Alarm, Leap Year, Square Wave Output 1.8V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.8μA @ 1.2V~1.8V
MCP795B20-I/ST MCP795B20-I/ST Microchip Technology 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube 2011 Obsolete 1 (Unlimited) 14 EAR99 5mm ROHS3 Compliant ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ 14-TSSOP (0.173, 4.40mm Width) SPI 4.4mm Surface Mount -40°C~85°C CMOS 1.2mm 8542.39.00.01 Clock/Calendar e3 MATTE TIN (SN) DUAL 5V MCP795B20 14 YES 0.65mm R-PDSO-G14 Timer or RTC Not Qualified 2/5V Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer 64B 8 1.8V~5.5V HH:MM:SS:hh (12/24 hr) 10MHz 1/100SECOND Y NO YY-MM-DD-dd 1μA @ 1.8V~5.5V 1.3V~5.5V
IDT1337SOI IDT1337SOI Integrated Device Technology (IDT) 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 RoHS Compliant 16 SOIC
X1288V14-2.7A X1288V14-2.7A Renesas Electronics America 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube Obsolete 1 (Unlimited) Non-RoHS Compliant 14-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial Surface Mount 0°C~70°C Clock/Calendar X1288 Alarm, Leap Year, Supervisor, Watchdog Timer 2.7V~5.5V HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V
BQ4845S-A4TRG4 BQ4845S-A4TRG4 Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 no 28 EAR99 17.9705mm Non-RoHS Compliant Contains Lead 28 SOIC 7.5565mm CMOS 2.667mm 8542.39.00.01 DUAL GULL WING NOT SPECIFIED 5V NOT SPECIFIED 28 COMMERCIAL YES 1.27mm 4.75V 70°C Timer or RTC Not Qualified 5V 5.5V 8 TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y NO PARALLEL, DIRECT ADDRESS 1
ISL12029AIV27Z ISL12029AIV27Z Rochester Electronics 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube Obsolete 1 (Unlimited) ROHS3 Compliant 14-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer 14-TSSOP 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
PT7C43390LE PT7C43390LE Diodes Incorporated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 9 Weeks Surface Mount Tube Last Time Buy 1 (Unlimited) 8 EAR99 4.4mm ROHS3 Compliant 8 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) I2C, 2-Wire Serial 3mm Surface Mount -40°C~85°C CMOS 1.2mm Clock/Calendar e3 MATTE TIN DUAL 260 3V NOT SPECIFIED 0.65mm Timer or RTC Not Qualified 3/5V Alarm, Leap Year, Square Wave Output 1.3V~5.5V HH:MM:SS (12/24 hr) SECONDS Y NO I2C 1 YY-MM-DD-dd 0.65μA~0.7μA @ 3V~5V
X1227S8I-2.7AT2 X1227S8I-2.7AT2 Intersil Corporation 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 3 Non-RoHS Compliant not_compliant CMOS e0 Tin/Lead (Sn/Pb) DUAL GULL WING INDUSTRIAL YES 1.27mm R-PDSO-G8 85°C -40°C Timer or RTC Not Qualified 3/5V 8 SECONDS Y NO SERIAL, 2 WIRE/I2C
ISL12027IBZ ISL12027IBZ Intersil (Renesas Electronics America) 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Bulk 2010 Active 1 8 EAR99 85°C -40°C 3.3V 5mm RoHS Compliant Lead Free No 8 SOIC 2-Wire, I2C, Serial 5.5V 2.7V 1.5mm 4mm CMOS e3 Matte Tin (Sn) - annealed DUAL 260 3.3V 40 INDUSTRIAL 1.27mm Timer or RTC 3/5V Clock 512B HH:MM:SS 0.032MHz SECONDS Y NO I2C YY-MM-DD-dd
X1226V8Z X1226V8Z Renesas Electronics America 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube Obsolete 1 (Unlimited) ROHS3 Compliant 8-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial Surface Mount 0°C~70°C Clock/Calendar e3 Matte Tin (Sn) NOT SPECIFIED NOT SPECIFIED X1226 Alarm, Leap Year 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V
ISL12027IBAZ ISL12027IBAZ Intersil (Renesas Electronics America) 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount 1999 Active 1 8 EAR99 85°C -40°C 3.3V 5mm RoHS Compliant No 8 SOIC 2-Wire, I2C, Serial 5.5V 2.7V 1.5mm 4mm CMOS e3 Matte Tin (Sn) - annealed DUAL 260 3.3V 40 INDUSTRIAL 1.27mm Timer or RTC 3/5V Clock HH:MM:SS 0.032MHz SECONDS Y NO I2C YY-MM-DD-dd
X1227V8-2.7 X1227V8-2.7 Intersil (Renesas Electronics America) 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 Surface Mount Bulk 8 EAR99 70°C 0°C 4.4mm RoHS Compliant Contains Lead TSSOP 2-Wire, I2C, Serial 3mm CMOS 1.2mm 8542.39.00.01 e0 Tin/Lead (Sn/Pb) DUAL 5V 8 COMMERCIAL 0.65mm R-PDSO-G8 2.7V Timer or RTC Not Qualified 3/5V 5.5V 512B HH:MM:SS (12/24 hr) TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y YES I2C YY-MM-DD-dd
DS1302Z/T&R DS1302Z/T&R Maxim Integrated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tape & Reel (TR) 2002 Obsolete 1 (Unlimited) 70°C 0°C 3.3V 5mm Non-RoHS Compliant Contains Lead Tin No 8 8-SOIC (0.154, 3.90mm Width) 3-Wire Serial 5.5V Unknown 2V 1.5mm 4mm Surface Mount 506.605978mg 0°C~70°C Clock/Calendar DS1302 Leap Year, NVSRAM, Trickle-Charger 8-SOIC Clock 31B 2V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.3μA~1μA @ 2V~5V 2V~5.5V
X1227S8I-2.7A X1227S8I-2.7A Intersil 0.0000
RFQ

Min: 1

Mult: 1

0.00000000
X1228V14IZ-2.7A X1228V14IZ-2.7A Intersil 0.0000
RFQ

Min: 1

Mult: 1

0.00000000
DS1673E-5/T&R DS1673E-5/T&R Maxim Integrated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tape & Reel (TR) 2009 Obsolete 1 (Unlimited) Non-RoHS Compliant 20-TSSOP (0.173, 4.40mm Width) 3-Wire Serial Surface Mount 0°C~70°C Portable System Controller DS1673 Alarm, Leap Year, Watchdog Timer 20-TSSOP 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 300μA @ 5V 2.5V~3.7V
DP8570AVX DP8570AVX Rochester Electronics 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 Tape & Reel (TR) Obsolete 2A (4 Weeks) Non-RoHS Compliant 28-LCC (J-Lead) Parallel Surface Mount -40°C~85°C Timer Clock Peripheral (TCP) Alarm, Leap Year 28-PLCC (11.51x11.51) 44B 4.5V~5.5V HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 1μA @ 5V 2.2V~5.1V
PT7C4337BLEX PT7C4337BLEX Diodes Incorporated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 20 Weeks Tape & Reel (TR) Active 8-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C TA Clock/Calendar Alarm, Leap Year, Square Wave Output 1.8V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.8μA @ 1.2V~1.8V
ISL12022MAIBZ-T ISL12022MAIBZ-T Intersil (Renesas Electronics America) 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks Surface Mount Tape & Reel 2004 Active 1 20 EAR99 85°C -40°C 12.8mm RoHS Compliant No 20 SOIC 2-Wire, I2C, Serial 5.5V 2.7V 7.5mm CMOS 2.65mm 8542.39.00.01 e3 Matte Tin (Sn) - annealed DUAL 3V 20 INDUSTRIAL 1.27mm Timer or RTC 3/5V Clock 0.0005 % 128B HH:MM:SS 0.032MHz SECONDS Y NO I2C YY-MM-DD-dd
RX-8035LC:AC3 PURE SN RX-8035LC:AC3 PURE SN EPSON 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 13 Weeks Tape & Reel (TR) RX-8035LC Active 1 (Unlimited) ROHS3 Compliant 12-TFSOJ (0.094, 2.40mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Time Event Recorder Alarm 2.4V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 2.5μA @ 3V 1V~5.5V
DS1685SN-5/T&R DS1685SN-5/T&R Maxim Integrated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tape & Reel (TR) 2012 Obsolete 1 (Unlimited) Non-RoHS Compliant Contains Lead 24-SOIC (0.295, 7.50mm Width) Parallel Surface Mount -40°C~85°C Clock/Calendar DS1685 Alarm, NVSRAM, Square Wave Output, Y2K 24-SOIC 242B 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 3mA @ 5V 2.5V~3.7V
DS1747P-70 DS1747P-70 Rochester Electronics 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube no Obsolete 3 (168 Hours) 34 Non-RoHS Compliant A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED 34-PowerCap™ Module Parallel Surface Mount 0°C~70°C Clock/Calendar e0 TIN LEAD DUAL 240 5V NOT SPECIFIED 34 YES R-XDMA-U34 COMMERCIAL Leap Year, NVSRAM, Y2K 512KB 4.5V~5.5V HH:MM:SS (24 hr) 8 0.032MHz YY-MM-DD-dd 4mA @ 5V 3V
RV-8263-C7-32.768KHZ-20PPM-TA-QC RV-8263-C7-32.768KHZ-20PPM-TA-QC Micro Crystal 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 2 Weeks Tape & Reel (TR) Automotive, AEC-Q200 Active 1 (Unlimited) ROHS3 Compliant 8-WCDFN I2C Surface Mount -40°C~85°C TA Clock/Calendar Gold Flash (Au) 260 40 Alarm, Leap Year, RAM 0.9V~5.5V HH:MM:SS YY-MM-DD-dd 240nA @ 3V
RX-4581NB:B:ROHS RX-4581NB:B:ROHS EPSON 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 Surface Mount 85°C -40°C RoHS Compliant 22 SPI 16B HH:MM:SS (24 hr) YY-MM-DD-dd
X1205S8IT1 X1205S8IT1 Renesas Electronics America 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tape & Reel (TR) Obsolete 1 (Unlimited) Non-RoHS Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar X1205 Alarm, Leap Year 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V
ISL12027IV27Z ISL12027IV27Z Intersil 0.0000
RFQ

Min: 1

Mult: 1

0.00000000
ISL12058IUZ-T ISL12058IUZ-T Renesas Electronics America 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks Tape & Reel (TR) 2009 Active 1 (Unlimited) EAR99 ROHS3 Compliant 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) NOT SPECIFIED NOT SPECIFIED ISL12058 8 Alarm, Leap Year 1.8V~3.6V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.65μA @ 1.8V
M48T212V-85MH1F M48T212V-85MH1F STMicroelectronics 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tape & Reel (TR) Timekeeper® Obsolete 1 (Unlimited) 44 EAR99 3.3V ROHS3 Compliant Lead Free 44 44-BSOP (0.337, 8.56mm Width) requires SNAPHAT Parallel 85GHz 8.56mm Surface Mount 0°C~70°C CMOS 10mA 3.05mm Clock/Calendar DUAL 260 3.3V 10 M48T212 44 Timer or RTC Not Qualified 1W Alarm, Leap Year, Watchdog Timer, Y2K 1 85 ns 3V~3.6V HH:MM:SS (24 hr) 8 SECONDS Y NO YY-MM-DD-dd 2mA @ 3V~3.6V 3V
RTC-4543SB:B3 ROHS RTC-4543SB:B3 ROHS EPSON 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tape & Reel (TR) RTC-4543SB Not For New Designs 1 (Unlimited) ROHS3 Compliant 18-SOIC (0.209, 5.30mm Width) 3-Wire Serial Surface Mount -40°C~85°C Clock/Calendar Leap Year 18-SOP 2.5V~5.5V HH:MM:SS (24 hr) YY-MM-DD-dd 1μA~3μA @ 2V~5V
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