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The Avago Technologies’ Photo MOSFET Solid State Relay family consists of an AlGaAs infrared light-emitting diode (LED) input stage optically coupled to a high-voltage output detector circuit with high insulation voltage and high CMR (Common Mode Rejection) for output transient immunity in noisy environments. The detector consists of a high-speed photovoltaic diode array and driver circuitry to switch on/off two discrete high voltage MOSFETs.

The single channel configurations, ASSR-1218, ASSR-1219, ASSR-1410 and ASSR-1411, are equivalent to 1 Form A Electromechanical Relays (EMR), and the dual channel configuration, ASSR-1420, is equivalent to 2 Form A EMR. They are available in 4-pin SO, 6-pin DIP, 8-pin DIP and Gull Wing Surface Mount for DIP packages. The ASSR-14XX electrical and switching characteristics are specified over the temperature range of -40°C to 85°C. They are used for general purpose switching of signals and low power AC/DC loads.

The ASSR-1219 enables AC/DC and DC-only output connections. For DC-only connection, the output current, Io, increases to 0.4A and the on-resistance, R(ON) reduces to 2.5Ω.

ASSR-1411 enables AC/DC and DC-only output connections. For DC-only connection, the output current, Io, increases to 1.2A and the on-resistance, R(ON) reduces 0.5Ω.