This part is a kind of semiconductor called 741-12-1C-xxxx-xx.

Function of this product has Automotive Power Relay.

Manufacturers : OEN

Image and pinout :

Some of the text within the PDF file :

74 AUTOMOTIVE POWER RELAY FEATURES l High performance l 6.3mm Flat Terminals l Current rating up to 40A l Suitable Couplers available l Optional Sealing Model Areas of Application Contact Configuration Contact Material Contact Rating at 230C - 12VDC (Res.) : : NO : NC : Electrical Life Operations Min. Mechanical Life Operations Min. Contact Voltage Drop at 10 A (Min) Ma ximum Switching Current @ 12.8 VDC For 3 Sec. *Under introduction Nominal Coil Power Operating Power Operate Time** Release Time** : : : : APPLICATION l Horn Control l Starter Motors l Defogger l Radiator Fan l A/C Controls l Security Systems TECHNICAL DATA FOR CONTACT SIDE : : 74 1A/1C Silver Nickel 30 20 2 x 10 1 x 10 5 74-SC 1A/1C Silver Nickel / Silver Tin Oxide* 40 30 2 x 105 1 x 106 50mV 150A [ ... ]

741-12-1C-xxxx-xx PDF Datasheet Download