IC Batteries

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Type	Battery Chemistry	Capacity	Voltage - Rated	Frequency	Load Capacitance	Operating Temperature
M4T28-BR12SH1 IC CLK BATT/XTAL 32.768KHZ 48MAH STMicroelectronics	14,177 In Stock	1 : £5.71000 Tube	Timekeeper®, Snaphat®	Tube	Active	Battery and Crystal	Lithium	48mAh	2.8 V	32.768 kHz	12.5 pF	0°C ~ 70°C (TA)
M4T32-BR12SH1 IC CLK BAT/XTAL 32.768KHZ 120MAH STMicroelectronics	6,386 In Stock	1 : £8.30000 Tube	Timekeeper®, Snaphat®	Tube	Active	Battery and Crystal	Lithium	120mAh	2.8 V	32.768 kHz	12.5 pF	0°C ~ 70°C (TA)
M4T32-BR12SH6 IC CLK BAT/XTAL 32.768KHZ 120MAH STMicroelectronics	4,279 In Stock	1 : £8.97000 Tube	Timekeeper®, Snaphat®	Tube	Active	Battery and Crystal	Lithium	120mAh	2.8 V	32.768 kHz	12.5 pF	-40°C ~ 85°C (TA)
BQ48SH-28X6NSH IC CLK BATT/XTAL 32.768KHZ 48MAH Texas Instruments	0 In Stock 38,344 Marketplace	69 : £5.23667 Tube 40 : £5.60200 Bulk	Snaphat®	Bulk Tube	Obsolete	Battery and Crystal	Lithium	48mAh	2.8 V	32.768 kHz	6 pF	0°C ~ 70°C (TA)

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Products in this family are specialized modules containing an electrochemical power source used for powering real-time clocks in applications where tracking the passage of time in the absence of an external power source is needed. Typically designed for use with a specific time keeping integrated circuit, they provide a means of assembling temperature sensitive components onto a printed circuit board after the completion of other assembly processes involving high temperatures.