This part is a kind of semiconductor called ER14250.

Function of this product has Lithium Thionyl Chloride(Li-SOCI2) Battery.

Manufacturers : OmniCel

Image and pinout :

Some of the text within the PDF file :

TECHNICAL SPECIFICATION ER14250 KEY FEATURES ✔ High and stable operating voltage MODEL ER14250 Lithium Thionyl Chloride (Li-SOCI2) Battery (International size reference: 1/2AA, ER14250) ✔ High minimum voltage during pulsing ✔ Low self discharge rate (less than 1% after 1 year of storage at +25ºC) ✔ Stainless steel container ✔ Hermetic glass-to-metal sealing ELECTRICAL CHARACTERISTICS (typical values for cells stored for one year or less, at 25ºC) ■ Nominal capacity 1.20Ah ✔ Non-flammable electrolyte ✔ Compliant with IEC 86-4 safety standard and EN 50020 intrinsic safety ✔ Non restricted for transport Underwriters Laboratories (UL) Component Recognition (File Number MH 28717) (at 1.0 mA, +25ºC, 2.0V cut off. The capacity restored by the cell varies according to [ ... ]

ER14250 PDF Datasheet Download