This part is a kind of semiconductor called ER14250.

Function of this product has Primary lithium batteries.

Manufacturers : Able

Image and pinout :

Some of the text within the PDF file :

R Primary Lithium Battery Expert Primary lithium batteries ER14250 1/2AA 3.6V 1.2Ah 3.6V Primary lithium-thionyl chloride (Li-SOCl 2 ) Energy type 1/2AA -size bobbin cell For low drain / long te rm operating applications requesting superior voltage response in -55 ~+85 environments. Cell size references Alternative models 1/2UM3 - 1/2R6 - 1/2AA LS1 4250/LST14250/LS14250C/TL - 4902 /TL-5902 /SB-AA02/ XL-050F Electrical characteristics (typical values relative to cells stored for one year or less at +30 max.) Nominal capacity (at 0.5 mA +20 2.0V cut off. The capacity resto red by the cell varies according to current drain, temperature and cut off). www.DataSheet.co.kr 1.2Ah Open circuit voltage (at +20 ) Nominal voltage (at 0.5mA +20 ) 3.66V 3.6V Pulse capability: Typically up to 1 [ ... ]

ER14250 PDF Datasheet Download