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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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Real Time Clock 32.768kHz SPI Time Acc. 6ppm RV-3149-C3 32.768kHz OPTION A TA QC Micro Crystal 1: $5.44 354In 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	354In Stock	Cut Tape $5.44 $4.09 $3.77 $3.40 Reel $3.09 View $3.23 $3.20 $3.05 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: $4.65 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 $4.65 $3.50 $3.21 $2.88 Reel $2.52 View $2.72 $2.66 $2.45 $2.40 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: $3.64 636In Stock 3,000On 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	636In Stock 3,000On Order On Order Ship Dates Mfr. No: RV-3028-C8-32.768kHz-1PPM-TA-QC Stock: 636 Can Dispatch Immediately On Order: 1,000 Expected 2027/01/08 1,000 Expected 2027/01/27 1,000 Expected 2027/02/12 Factory Lead Time: 16 Weeks	Cut Tape $3.64 $2.71 $2.49 $2.23 Reel $1.99 View $2.11 $2.05 $1.94 $1.93 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: $3.68 15,777In Stock 68,000On 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	15,777In Stock 68,000On Order On Order Ship Dates Mfr. No: RV-8803-C7-32.768KHZ-3PPM-TA-QC Stock: 15,777 Can Dispatch Immediately On Order: 44,000 Expected 2027/04/30 24,000 TBD Factory Lead Time: 39 Weeks	Cut Tape $3.68 $3.00 $2.83 $2.55 Reel $1.93 View $2.01 $1.98 $1.88 $1.86 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: $20.84 98In Stock	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	98In Stock	$20.84	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: $3.98 1,335In 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	1,335In Stock	Cut Tape $3.98 $2.99 $2.73 $2.47 Reel $2.27 View $2.34 $2.23 $2.21 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Real Time Clock 32.768kHz SPI Time Acc. 25ppm AEC RV-3149-C3 32.768kHz OPTION B TB QA Micro Crystal 1: $4.64 1,412In 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	1,412In Stock	Cut Tape $4.64 $3.49 $3.20 $2.88 Reel $2.65 View $2.73 $2.70 $2.58 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: $1.99 1,600In 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	1,600In Stock	Cut Tape $1.99 $1.45 $1.31 $1.16 Reel $1.05 View $1.09 $1.06 $0.996 $0.977 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: $3.28 656In Stock 33,000Expected 2027/01/22	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	656In Stock 33,000Expected 2027/01/22	Cut Tape $3.28 $2.44 $2.22 $2.00 Reel $1.74 View $1.88 $1.84 $1.71 $1.67 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: $5.85 52In Stock 1,000Expected 2027/06/18	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 2027/06/18	Cut Tape $5.85 $4.44 $4.09 $3.71 View Reel $3.38 $3.51 $3.48 $3.38 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: $1.99 26In Stock	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	Cut Tape $1.99 $1.45 $1.31 $1.16 Reel $1.05 View $1.09 $1.06 $0.996 $0.977 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: $3.02 191,097On 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	191,097On Order On Order Ship Dates Mfr. No: RV-3028-C7 32.768kHz 1ppm TA QC Stock: 0 On Order: 87,097 Expected 2027/04/23 104,000 Expected 2027/05/21 Factory Lead Time: 34 Weeks	Cut Tape $3.02 $2.24 $2.06 $1.85 View Reel $1.67 $1.73 $1.71 $1.67 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: $3.26 75,311On 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	75,311On Order On Order Ship Dates Mfr. No: RV-3028-C7 32.768kHz 1ppm TA QA Stock: 0 On Order: 8,311 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 $3.26 $2.41 $2.21 $1.98 View Reel $1.76 $1.87 $1.81 $1.76 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: $5.83 23,438On 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	23,438On Order On Order Ship Dates Mfr. No: RV-3129-C3 32.768kHz OPTION A TB QA Stock: 0 On Order: 8,438 Pending 15,000 Expected 2027/06/18 Factory Lead Time: 40 Weeks	Cut Tape $5.83 $4.40 $4.05 $3.65 View Reel $3.19 $3.47 $3.43 $3.19 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: $5.44 8,798On 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	8,798On Order On Order Ship Dates Mfr. No: RV-3129-C3 32.768kHz OPTION A TA QC Stock: 0 On Order: 3,798 Pending 5,000 Expected 2027/04/30 Factory Lead Time: 29 Weeks	Cut Tape $5.44 $4.09 $3.77 $3.40 $3.23 Reel $3.23 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: $4.98 4,000Expected 2026/10/23	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	4,000Expected 2026/10/23	Cut Tape $4.98 $3.76 $3.45 $3.12 Reel $2.86 View $2.95 $2.92 $2.80 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: $3.80 999Expected 2027/01/08 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	999Expected 2027/01/08	Cut Tape $3.80 $2.84 $2.58 $2.33 Reel $2.21 View $2.21 $2.05 $2.02 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: $1.90 1,000Expected 2027/02/05	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 2027/02/05	Cut Tape $1.90 $1.40 $1.24 $1.10 Reel $0.998 View $1.04 $1.03 $0.948 $0.928 MouseReel Available	Min.: 1 Mult.: 1 : 1,000

Real-Time Clock (RTC) Modules

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