This part is a kind of semiconductor called HJR-21FF.
Function of this product has Relay.
Manufacturers : TIANBO GANGLIAN ELECTRONICS
Image and pinout :

Some of the text within the PDF file :
www.DataSheet.co.kr TIANBO GANGLIAN ELECTRONICS HJR-21FF HJR-21FF SPECIFICATION FILE NUMBER: P-08KA601A DATE: 2001/11/02 ■ Features 10A switching capability SPST-NO configuration Small footprint Sealed version available ■ CONTACT DATA Contact Contact Contact Form Material Ratings 1A/1C AgCdO 1A:12A 240VAC 15A 12VDC(TUV) 15A 120VAC/24VDC 250VAC/30VDC 15A 2770VA/240W 100m Ω Max 100,000 10,000,000 at 6VDC 1A Operations(at30Operations/minute) Operations AgSnO 1C:10A 240VAC/12A 120VAC/240VDC 7A 240VAC(TUV) Max Switching Voltage Max Switching Current Max Switching Power Contact Resistance Life Expectancy Electrical Machanical ■ GENERAL DATA Insulation Resistance Dielectric Strength Between Open Contacts Between Contacts and coil Operate Time Release Time Temperature Range Shock Re [ ... ]
HJR-21FF PDF Datasheet Download
