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Datasheet:TLP621.pdf

Programmable Controller
AC / DC−Input Module
Solid State Relay
The TOSHIBA TLP621, −2 and −4 consists of a photo−transistor
optically coupled to a gallium arsenide infrared emitting diode.
The TLP621−2 offers two isolated channels in an eight lead plastic DIP,
which the TLP621−4 provides four isolated channels in a sixteen plastic
DIP.

 Collector−emitter voltage: 55 V (min.)

 Current transfer ratio: 50% (min.)
Rank GB: 100% (min.)