4-channel Darlington optocoupler — active production, RoHS3 compliant
The PS2833-4-V-A: Each channel delivers a minimum current transfer ratio of 400% at 1 mA forward current, with a maximum CTR of 4500% at the same bias — the Darlington stage provides enough gain to switch a 60 mA load per channel directly from a low-current logic input.
Isolation and output ratings — 2500 Vrms, 350 V output ceiling
Galvanic isolation is rated at 2500 Vrms between input and output, which covers basic insulation for 240 VAC mains-referenced circuits in industrial control and power-supply feedback loops. The output transistor can withstand up to 350 V collector-emitter, so the part can directly drive a 24 V or 48 V relay coil or a small solenoid without an external driver transistor.