This part is a kind of semiconductor called AQG22212.

Function of this product has SOLID STATE RELAY.

Manufacturers : NAiS

Image and pinout :

Some of the text within the PDF file :

AQ-G UL CSA VDE Pending Pending Pending AQ-G SOLID STATE RELAY AQ-G RELAYS 4. High dielectric strength of 3,000V AC (between input and output) 5. Snubber circuit integrated The snubber circuit is integrated to prevent malfunction caused by the rapid rise of voltage on the output side, such as inductive load and current. 4.5 max. .177 max. 24.5 max. .965 max. 13.5 max. .531 max. FEATURES 1. Space saving, Slim size with a maximum thickness of 4.5 mm. Mounting space has been reduced to 30% (compared to conventional SSR’s) while meeting high density PC board mounting requirements. 2. 1A and 2A load types available 3. Zero-cross type and Non zero-cross type available 24.5 max. .965 max. 4.5 max. .177 max. 20.5 max. .807 max. mm inch TYPES Type Load current 1A Z [ ... ]

AQG22212 PDF Datasheet Download