The EL840A(D)and EL860A(D) are solid state relays containing an AlGaAs infrared LEDs on the light emitting side input side) optically coupled to a high voltage output detector circuit. The detector consists of a photovoltaic diode array and MOSFETs on the output side. The dual channel configuration is equivalent to 1 form A EMR. They are packaged in 8 pin DIP and available in surface mount SMD option.
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