This part is a kind of semiconductor called HE751.

Function of this product has Dual in Line Reed Relays.

Manufacturers : Hamlin

Image and pinout :

Some of the text within the PDF file :

www.hamlin.com HE700 D.I.L. Relay Features and Benefits Features • Miniature dual in line package • Choice of normally open, normally closed and change over contacts • High voltage switching option • Up to 2 normally open contacts • Available with 5V, 12V or 24V coil options as standard • Magnetic shield option • Diode suppression option • Diagonal coil option Benefits • One relay, various contacts choices reducing space and cost without compromising flexibility • Lower power coil consumption than competing electromechanical devices. • Hermetically sealed switching contact is immune to the effects of its environment • Transfer moulded package gives maximum component protection Applications • Security • Telecoms • Instrumentation • Pro [ ... ]

HE751 PDF Datasheet Download