Description: The PS7142-1B, -2B and PS7142L-1B, -2B are solid state relays containing GaAs LEDs on the light emitting side (input side) and normally close (N.C.) contact MOS FETs on the output side.<<<>>>They are suitable for analog signal control because of their low offset and high linearity.<<<>>>The PS7142L-1B, -2B have a surface mount type lead.