This part is a kind of semiconductor called SC5-S-DC12V.

Function of this product has PCB Power Relay.

Manufacturers : LEONE

Image and pinout :

Some of the text within the PDF file :

Confidential www.paragtrading.com SC5 Model Dimension L * W * H (mm) SC5 19 * 15.5 * 15.5 Features Terminal Type PCB Weight 10.5 gm Approximately Contact Form 1A,1C Contact Data Contact Material AgCdO Contact Capacity 7A @300VAC 10A @28VDC Coil Voltage 6 VDC ~ 48 VDC Coil Power Consumption 0.36W Coil Data Coil Specification Coil Voltage Coil Resistance (Ù) ±10% Pull in Voltage (VDC) Drop Out Voltage (VDC) 6 VDC 100 80 % 5% 12 VDC 400 80 % 5% 24 VDC 1600 80 % 5% Dielectric Strength 750 VAC @ 50 Hz / Min (Between open Contacts) 1500 VAC @ 50 Hz / Min ( Between Coil & Contacts) Insulation Resistance General Data Electrical Life 250 MΩ 1 x 10 5 Mechanical Life 1 x 10 7 Operating Temperature - 40˚C ~ + 70˚C Dimension Application UPS, Inv [ ... ]

SC5-S-DC12V PDF Datasheet Download