SMA4123 relay equivalent, solid state relay.
* High Load Current (2.2A MAX)
* Low Input Control Current (1.5mA TYP)
* Low On Resistance (160mΩ TYP)
* High Input-to-Output Isolation (5kV option)
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* Reed Relay Replacement
* Mechanical Relay Replacement
* Medical Equipment
* Battery Monitoring
* M.
The SMA4123 is a single-pole, single-throw, normally open multipurpose solid state relay. The circuit is composed of an infra-red LED on the input side optically coupled to a Photo Diode Array which drives back-to-back low on resistance enhancement t.
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