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Real-Time Clock (RTC) Modules

Micro Crystal Real-Time Clock (RTC) Modules combine a 32.768kHz tuning fork crystal resonator with a CMOS-based oscillator and an RTC IC housed in a miniature SMD ceramic package. The RTC modules offer high accuracy, temperature compensation, and low current consumption. These cost-effective Micro Crystal modules have an extended operating temperature and are AEC-Q200 qualified. Applications include the Internet of Things (IoT), smart metering, energy harvesting solutions, battery management systems, automotive, industrial, computing, embedded systems, wearables, healthcare, and more.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
Real Time Clock 32.768kHz SPI Time Acc. 25ppm AEC RV-3149-C3 32.768kHz OPTION B TB QA Micro Crystal 1: £3.40 1,381In Stock	Mfr. Part No. RV-3149-C3 32.768kHz OPTION B TB QA Mouser Part No 428-203684-MG01	Micro Crystal	Real Time Clock 32.768kHz SPI Time Acc. 25ppm AEC Learn More about Micro Crystal real time clock modules	Datasheet	1,381In Stock	Cut Tape £3.40 £2.56 £2.35 £2.11 Reel £1.93 View £2.00 £1.97 £1.89 £1.87 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz SPI Time Acc. 6ppm RV-3149-C3 32.768kHz OPTION A TA QC Micro Crystal 1: £4.09 19In Stock	Mfr. Part No. RV-3149-C3 32.768kHz OPTION A TA QC Mouser Part No 428-203658-MG01	Micro Crystal	Real Time Clock 32.768kHz SPI Time Acc. 6ppm Learn More about Micro Crystal real time clock modules	Datasheet	19In Stock	Cut Tape £4.09 £3.07 £2.83 £2.55 Reel £2.32 View £2.43 £2.40 £2.29 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz SPI Time Acc. 25ppm RV-3149-C3 32.768kHz OPTION B TA QC Micro Crystal 1: £3.49 717In Stock	Mfr. Part No. RV-3149-C3 32.768kHz OPTION B TA QC Mouser Part No 428-203605-MG01	Micro Crystal	Real Time Clock 32.768kHz SPI Time Acc. 25ppm Learn More about Micro Crystal real time clock modules	Datasheet	717In Stock	Cut Tape £3.49 £2.62 £2.41 £2.17 Reel £1.89 View £2.04 £2.00 £1.84 £1.80 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz I2C Time Acc. 25ppm RV-3129-C3 32.768kHz OPTION B TA QC Micro Crystal 1: £2.99 1,287In Stock	Mfr. Part No. RV-3129-C3 32.768kHz OPTION B TA QC Mouser Part No 428-203634-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 25ppm Learn More about Micro Crystal real time clock modules	Datasheet	1,287In Stock	Cut Tape £2.99 £2.24 £2.05 £1.85 Reel £1.70 View £1.75 £1.68 £1.66 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768 kHz +/-20 PPM SPI -40/+85C RV-8063-C7-32.768KHZ-20PPM-TA-QC Micro Crystal 1: £1.49 1,470In Stock	Mfr. Part No. RV-8063-C7-32.768KHZ-20PPM-TA-QC Mouser Part No 428-203119-MG01	Micro Crystal	Real Time Clock 32.768 kHz +/-20 PPM SPI -40/+85C Learn More about Micro Crystal real time clock modules	Datasheet	1,470In Stock	Cut Tape £1.49 £1.09 £0.986 £0.871 Reel £0.786 View £0.818 £0.797 £0.747 £0.733 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Clock & Timer Development Tools 32.768kHz I2C Time Acc. 1ppm RV-3028-C7 ON BOARD 32.768kHz TA QC Micro Crystal 1: £15.64 38In Stock 49Expected 04/01/2027	Mfr. Part No. RV-3028-C7 ON BOARD 32.768kHz TA QC Mouser Part No 428-203588-AA00	Micro Crystal	Clock & Timer Development Tools 32.768kHz I2C Time Acc. 1ppm Learn More about Micro Crystal rv 3028 c7	Datasheet	38In Stock 49Expected 04/01/2027	£15.64	Min.: 1 Mult.: 1
Real Time Clock 32.768kHz SPI Time Acc. 6ppm AEC RV-3149-C3 32.768kHz OPTION A TB QA Micro Crystal 1: £4.39 52In Stock 1,000Expected 18/06/2027	Mfr. Part No. RV-3149-C3 32.768kHz OPTION A TB QA Mouser Part No 428-203641-MG01	Micro Crystal	Real Time Clock 32.768kHz SPI Time Acc. 6ppm AEC Learn More about Micro Crystal real time clock modules	Datasheet	52In Stock 1,000Expected 18/06/2027	Cut Tape £4.39 £3.33 £3.07 £2.78 View Reel £2.54 £2.64 £2.61 £2.54 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz SPI 20ppm 2.0x1.2x0.7 AEC-Q200 RV-8063-C8 32.768kHz-20PPM-TA-QA Micro Crystal 1: £1.49 26In Stock 1,000Expected 05/02/2027	Mfr. Part No. RV-8063-C8 32.768kHz-20PPM-TA-QA Mouser Part No 428-204290-MC01	Micro Crystal	Real Time Clock 32.768kHz SPI 20ppm 2.0x1.2x0.7 AEC-Q200 Learn More about Micro Crystal rv 8063 c8 rtc modules	Datasheet	26In Stock 1,000Expected 05/02/2027	Cut Tape £1.49 £1.09 £0.986 £0.871 Reel £0.786 View £0.818 £0.797 £0.747 £0.733 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz I2C Time Acc. 25ppm AEC RV-3129-C3 32.768kHz OPTION B TB QA Micro Crystal 1: £3.74 8,230On Order	Mfr. Part No. RV-3129-C3 32.768kHz OPTION B TB QA Mouser Part No 428-203639-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 25ppm AEC Learn More about Micro Crystal real time clock modules	Datasheet	8,230On Order On Order Ship Dates Mfr. No: RV-3129-C3 32.768kHz OPTION B TB QA Stock: 0 On Order: 3,230 Pending 5,000 Expected 04/12/2026 Factory Lead Time: 6 Weeks	Cut Tape £3.74 £2.82 £2.59 £2.34 Reel £2.15 View £2.22 £2.19 £2.10 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768 kHz +/-20 PPM I2C -40/+85C RV-4162-C7-32.768kHz-20PPM-TA-QC Micro Crystal 1: £2.46 30,062Expected 13/11/2026	Mfr. Part No. RV-4162-C7-32.768kHz-20PPM-TA-QC Mouser Part No 428-200007-MG01	Micro Crystal	Real Time Clock 32.768 kHz +/-20 PPM I2C -40/+85C Learn More about Micro Crystal real time clock modules	Datasheet	30,062Expected 13/11/2026	Cut Tape £2.46 £1.83 £1.67 £1.50 Reel £1.31 View £1.41 £1.38 £1.28 £1.27 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768 kHz +/-3 PPM I2C -40/+85C RV-8803-C7-32.768KHZ-3PPM-TA-QC Micro Crystal 1: £2.76 93,761On Order	Mfr. Part No. RV-8803-C7-32.768KHZ-3PPM-TA-QC Mouser Part No 428-202677-MG01	Micro Crystal	Real Time Clock 32.768 kHz +/-3 PPM I2C -40/+85C Learn More about Micro Crystal real time clock modules	Datasheet	93,761On Order On Order Ship Dates Mfr. No: RV-8803-C7-32.768KHZ-3PPM-TA-QC Stock: 0 On Order: 13,761 Expected 11/11/2026 36,000 Expected 05/03/2027 44,000 Expected 30/04/2027 Factory Lead Time: 29 Weeks	Cut Tape £2.76 £2.25 £2.12 £1.91 View Reel £1.45 £1.51 £1.48 £1.45 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz I2C Time Acc. 1ppm RV-3028-C7 32.768kHz 1ppm TA QC Micro Crystal 1: £2.27 185,900On Order	Mfr. Part No. RV-3028-C7 32.768kHz 1ppm TA QC Mouser Part No 428-203591-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 1ppm Learn More about Micro Crystal rv 3028 c7	Datasheet	185,900On Order On Order Ship Dates Mfr. No: RV-3028-C7 32.768kHz 1ppm TA QC Stock: 0 On Order: 81,900 Expected 23/04/2027 104,000 Expected 21/05/2027 Factory Lead Time: 41 Weeks	Cut Tape £2.27 £1.68 £1.55 £1.39 View Reel £1.26 £1.30 £1.28 £1.26 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz I2C Time Acc. 1ppm RV-3028-C7 32.768kHz 1ppm TA QA Micro Crystal 1: £2.44 69,293On Order	Mfr. Part No. RV-3028-C7 32.768kHz 1ppm TA QA Mouser Part No 428-203603-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 1ppm Learn More about Micro Crystal rv 3028 c7	Datasheet	69,293On Order On Order Ship Dates Mfr. No: RV-3028-C7 32.768kHz 1ppm TA QA Stock: 0 On Order: 2,293 Expected 16/04/2027 21,000 Expected 14/05/2027 18,000 Expected 28/05/2027 28,000 Expected 28/06/2027 Factory Lead Time: 37 Weeks	Cut Tape £2.44 £1.81 £1.66 £1.48 View Reel £1.32 £1.41 £1.36 £1.32 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz I2C Time Acc. 6ppm AEC RV-3129-C3 32.768kHz OPTION A TB QA Micro Crystal 1: £4.37 18,738On Order	Mfr. Part No. RV-3129-C3 32.768kHz OPTION A TB QA Mouser Part No 428-203618-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 6ppm AEC Learn More about Micro Crystal real time clock modules	Datasheet	18,738On Order On Order Ship Dates Mfr. No: RV-3129-C3 32.768kHz OPTION A TB QA Stock: 0 On Order: 2,738 Expected 18/06/2027 16,000 Expected 23/07/2027 Factory Lead Time: 45 Weeks	Cut Tape £4.37 £3.30 £3.04 £2.74 View Reel £2.39 £2.60 £2.58 £2.39 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz I2C Time Acc. 6ppm RV-3129-C3 32.768kHz OPTION A TA QC Micro Crystal 1: £4.09 8,643On Order	Mfr. Part No. RV-3129-C3 32.768kHz OPTION A TA QC Mouser Part No 428-203688-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 6ppm Learn More about Micro Crystal real time clock modules	Datasheet	8,643On Order On Order Ship Dates Mfr. No: RV-3129-C3 32.768kHz OPTION A TA QC Stock: 0 On Order: 3,643 Expected 06/11/2026 5,000 Expected 30/04/2027 Factory Lead Time: 29 Weeks	Cut Tape £4.09 £3.07 £2.83 £2.55 £2.43 Reel £2.43 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6 AEC-Q200 RV-3028-C8-32.768kHz-1PPM-TA-QA Micro Crystal 1: £2.85 1,324On Order New Product	Mfr. Part No. RV-3028-C8-32.768kHz-1PPM-TA-QA Mouser Part No 428-RV3028C81PPMTAQA New Product	Micro Crystal	Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6 AEC-Q200 Learn More about Micro Crystal rv 3028 c8 rtc modules	Datasheet	1,324On Order On Order Ship Dates Mfr. No: RV-3028-C8-32.768kHz-1PPM-TA-QA Stock: 0 On Order: 324 Expected 27/11/2026 1,000 Expected 08/01/2027 Factory Lead Time: 11 Weeks	Cut Tape £2.85 £2.13 £1.94 £1.75 Reel £1.66 View £1.66 £1.54 £1.52 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6mm RV-3028-C8-32.768kHz-1PPM-TA-QC Micro Crystal 1: £2.73 5,985On Order New Product	Mfr. Part No. RV-3028-C8-32.768kHz-1PPM-TA-QC Mouser Part No 428-RV3028C81PPMTAQC New Product	Micro Crystal	Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6mm Learn More about Micro Crystal rv 3028 c8 rtc modules	Datasheet	5,985On Order On Order Ship Dates Mfr. No: RV-3028-C8-32.768kHz-1PPM-TA-QC Stock: 0 On Order: 2,985 Expected 09/02/2027 1,000 Expected 12/02/2027 2,000 Expected 26/02/2027 Factory Lead Time: 15 Weeks	Cut Tape £2.73 £2.03 £1.87 £1.68 Reel £1.49 View £1.58 £1.54 £1.46 £1.45 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz, 20PPM, Real-Time Clock Module with SPI-Bus RV-8063-C8 32.768kHz-20PPM-TA-QC Micro Crystal 1: £1.42 1,000Expected 05/02/2027	Mfr. Part No. RV-8063-C8 32.768kHz-20PPM-TA-QC Mouser Part No 428-204233-MC01	Micro Crystal	Real Time Clock 32.768kHz, 20PPM, Real-Time Clock Module with SPI-Bus Learn More about Micro Crystal rv 8063 c8 rtc modules	Datasheet	1,000Expected 05/02/2027	Cut Tape £1.42 £1.05 £0.934 £0.828 Reel £0.749 View £0.779 £0.771 £0.711 £0.697 MouseReel Available	Min.: 1 Mult.: 1 : 1,000

Real-Time Clock (RTC) Modules

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Real-Time Clock (RTC) Modules

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