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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 (CAD) 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: $5.31 1,381In Stock	Mfr. Part # RV-3149-C3 32.768kHz OPTION B TB QA Mouser Part # 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 $5.31 $4.00 $3.67 $3.31 Reel $3.04 View $3.14 $3.10 $2.97 $2.91 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: $6.24 319In Stock	Mfr. Part # RV-3149-C3 32.768kHz OPTION A TA QC Mouser Part # 428-203658-MG01	Micro Crystal	Real Time Clock 32.768kHz SPI Time Acc. 6ppm Learn More about Micro Crystal real time clock modules	Datasheet	319In Stock	Cut Tape $6.24 $4.69 $4.32 $3.89 Reel $3.54 View $3.70 $3.67 $3.50 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: $5.33 717In Stock	Mfr. Part # RV-3149-C3 32.768kHz OPTION B TA QC Mouser Part # 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 $5.33 $4.00 $3.69 $3.31 Reel $2.89 View $3.12 $3.05 $2.81 $2.75 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: $23.89 96In Stock	Mfr. Part # RV-3028-C7 ON BOARD 32.768kHz TA QC Mouser Part # 428-203588-AA00	Micro Crystal	Clock & Timer Development Tools 32.768kHz I2C Time Acc. 1ppm Learn More about Micro Crystal rv 3028 c7	Datasheet	96In Stock	$23.89	Min.: 1 Mult.: 1
Real Time Clock 32.768kHz I2C Time Acc. 25ppm RV-3129-C3 32.768kHz OPTION B TA QC Micro Crystal 1: $4.56 1,167In Stock	Mfr. Part # RV-3129-C3 32.768kHz OPTION B TA QC Mouser Part # 428-203634-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 25ppm Learn More about Micro Crystal real time clock modules	Datasheet	1,167In Stock	Cut Tape $4.56 $3.43 $3.14 $2.82 Reel $2.61 View $2.68 $2.56 $2.53 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: $2.28 1,470In Stock	Mfr. Part # RV-8063-C7-32.768KHZ-20PPM-TA-QC Mouser Part # 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 $2.28 $1.67 $1.51 $1.33 Reel $1.20 View $1.25 $1.22 $1.14 $1.12 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: $3.76 470In Stock 33,000Expected 2026-11-13	Mfr. Part # RV-4162-C7-32.768kHz-20PPM-TA-QC Mouser Part # 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	470In Stock 33,000Expected 2026-11-13	Cut Tape $3.76 $2.79 $2.55 $2.29 Reel $2.00 View $2.16 $2.10 $1.96 $1.92 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz SPI Time Acc. 6ppm AEC RV-3149-C3 32.768kHz OPTION A TB QA Micro Crystal 1: $6.71 52In Stock 1,000Expected 2027-06-18	Mfr. Part # RV-3149-C3 32.768kHz OPTION A TB QA Mouser Part # 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 2027-06-18	Cut Tape $6.71 $5.10 $4.69 $4.25 View Reel $3.87 $4.03 $3.99 $3.87 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: $2.28 26In Stock 1,000Expected 2027-02-05	Mfr. Part # RV-8063-C8 32.768kHz-20PPM-TA-QA Mouser Part # 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 2027-02-05	Cut Tape $2.28 $1.67 $1.51 $1.33 Reel $1.20 View $1.25 $1.22 $1.14 $1.12 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: $4.22 63,710On Order	Mfr. Part # RV-8803-C7-32.768KHZ-3PPM-TA-QC Mouser Part # 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	63,710On Order On Order Ship Dates Mfr. #: RV-8803-C7-32.768KHZ-3PPM-TA-QC Stock: 0 On Order: 19,710 Expected 2026-11-11 44,000 Expected 2027-04-30 Factory Lead-Time: 39 Weeks	Cut Tape $4.22 $3.44 $3.24 $2.92 View Reel $2.22 $2.30 $2.26 $2.22 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: $3.47 190,550On Order	Mfr. Part # RV-3028-C7 32.768kHz 1ppm TA QC Mouser Part # 428-203591-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 1ppm Learn More about Micro Crystal rv 3028 c7	Datasheet	190,550On Order On Order Ship Dates Mfr. #: RV-3028-C7 32.768kHz 1ppm TA QC Stock: 0 On Order: 86,550 Expected 2027-04-23 104,000 Expected 2027-05-21 Factory Lead-Time: 41 Weeks	Cut Tape $3.47 $2.58 $2.36 $2.12 View Reel $1.92 $1.99 $1.96 $1.92 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: $3.73 69,306On Order	Mfr. Part # RV-3028-C7 32.768kHz 1ppm TA QA Mouser Part # 428-203603-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 1ppm Learn More about Micro Crystal rv 3028 c7	Datasheet	69,306On Order On Order Ship Dates Mfr. #: RV-3028-C7 32.768kHz 1ppm TA QA Stock: 0 On Order: 2,306 Expected 2027-04-16 21,000 Expected 2027-05-14 18,000 Expected 2027-05-28 28,000 Expected 2027-06-28 Factory Lead-Time: 37 Weeks	Cut Tape $3.73 $2.76 $2.53 $2.26 View Reel $2.02 $2.15 $2.07 $2.02 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: $6.68 24,438On Order	Mfr. Part # RV-3129-C3 32.768kHz OPTION A TB QA Mouser Part # 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	24,438On Order On Order Ship Dates Mfr. #: RV-3129-C3 32.768kHz OPTION A TB QA Stock: 0 On Order: 8,438 Expected 2027-06-18 16,000 Expected 2027-07-23 Factory Lead-Time: 40 Weeks	Cut Tape $6.68 $5.04 $4.64 $4.19 View Reel $3.66 $3.97 $3.93 $3.66 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: $6.24 8,648On Order	Mfr. Part # RV-3129-C3 32.768kHz OPTION A TA QC Mouser Part # 428-203688-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 6ppm Learn More about Micro Crystal real time clock modules	Datasheet	8,648On Order On Order Ship Dates Mfr. #: RV-3129-C3 32.768kHz OPTION A TA QC Stock: 0 On Order: 3,648 Pending 5,000 Expected 2027-04-30 Factory Lead-Time: 29 Weeks	Cut Tape $6.24 $4.69 $4.32 $3.89 $3.70 Reel $3.70 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: $5.70 3,230On Order	Mfr. Part # RV-3129-C3 32.768kHz OPTION B TB QA Mouser Part # 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	3,230On Order	Cut Tape $5.70 $4.31 $3.96 $3.57 Reel $3.28 View $3.38 $3.34 $3.21 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: $4.36 1,999On Order New Product	Mfr. Part # RV-3028-C8-32.768kHz-1PPM-TA-QA Mouser Part # 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	1,999On Order On Order Ship Dates Mfr. #: RV-3028-C8-32.768kHz-1PPM-TA-QA Stock: 0 On Order: 999 Expected 2026-11-27 1,000 Expected 2027-01-08 Factory Lead-Time: 11 Weeks	Cut Tape $4.36 $3.25 $2.97 $2.66 Reel $2.53 View $2.53 $2.35 $2.32 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: $4.18 4,509On Order New Product	Mfr. Part # RV-3028-C8-32.768kHz-1PPM-TA-QC Mouser Part # 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	4,509On Order On Order Ship Dates Mfr. #: RV-3028-C8-32.768kHz-1PPM-TA-QC Stock: 0 On Order: 509 Expected 2026-11-13 2,000 Expected 2026-12-30 1,000 Expected 2027-01-08 1,000 Expected 2027-02-12 Factory Lead-Time: 11 Weeks	Cut Tape $4.18 $3.11 $2.85 $2.56 Reel $2.28 View $2.42 $2.35 $2.23 $2.22 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: $2.17 1,000Expected 2027-02-05	Mfr. Part # RV-8063-C8 32.768kHz-20PPM-TA-QC Mouser Part # 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 2027-02-05	Cut Tape $2.17 $1.60 $1.43 $1.27 Reel $1.14 View $1.19 $1.18 $1.09 $1.06 MouseReel Available	Min.: 1 Mult.: 1 : 1,000

Real-Time Clock (RTC) Modules

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