This part is a kind of semiconductor called T7CS5D-12.

Function of this product has T7C Series / Miniature Power PC Board Relay.

Manufacturers : TYCO

Image and pinout :

Some of the text within the PDF file :

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com Catalog 1308242 Issued 3-03 (PDF Rev. 3-04) P&B Features • • • • • Contact Data @ 20°C Arrangements: 1 Form A (SPST-NO) and 1 Form C (SPDT). Material: Silver-cadmium oxide or silver. Max. Switching Rate: 300 ops./min. (no load). 30 ops./min. (rated load). Expected Mechanical Life: 10 million operations. Expected Electrical Life: 100,000 operations. Minimum Load: 10mA @ 5VDC Initial Contact Resistance: Ag: 100 milliohms max. @ 100mA, 6VDC. AgCdO: 100 milliohms max. @ 1A, 6VDC. w Up to 12 amp switching capacity. UL Class F (155°C) coil insulation system. 1 Form A and 1 Form C contact arrangements. Idea [ ... ]

T7CS5D-12 PDF Datasheet Download