8198981 - 

C-BT-53 Series Relay
Relay module to replace the obsolete BT53 series of small signal relays. The C-BT53 overall module dimensions are 16 x 10mm, identical to the original BT53, G5A-234P-53 and FBR46 footprints.
Direct replacement for the BT53 / BT53W series, Omron G5A-234P-53, Panasonic DF2 and Fujitsu FBR46 relays
Easy insertion into existing 12W dil socket, or direct soldering into printed circuit board