This part is a kind of semiconductor called TF2E-12V.

Function of this product has Ultra Small Dip Relay.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

ULTRA-THIN RELAYS DPDT 2 AMP CONTACTS AROMAT TX SERIES RELAY WITH 2,500 V SURGE www.coSmealed construction allows automatic washing Size : L=.579" W = .289" H= .427" 14.7mm 7.35mm 10.85mm Weight: Approx 2 gr. ULTRA-SLIM RELAYS DPDT 1 AMP CONTACTS AROMAT TN SERIES Sealed construction allows automatic washing Size : L=.551" W = .220" H= .386" 14mm 5.6mm 9.85mm Weight: Approx 1.5 gr. PCMT .100" x .100" grid spacing ULTRA-SMALL LOW PROFILE TQ DIP RELAYS DPDT 1 AMP CONTACTS AROMAT TQ SERIES Fits standard dip socket Sealed construction allows automatic washing Size: L=.551" W= .354" H= .197" 14mm 9mm 5mm ULTRA-SMALL DIP RELAYS DPDT 1 AMP CONTACTS AROMAT TF SERIES Very low coil power. Fits standard dip socket Sealed construction allows automatic washing Size: L =.551" W = .354" H=.307 [ ... ]

TF2E-12V PDF Datasheet Download