MOC256M is an AC input phototransistor optocoupler produced by Fairchild Semiconductor Corporation, with UL and VDE certification, using a standard SOIC-8 package, with bidirectional AC input, high input-output isolation and guaranteed 2:1 CTR symmetry
The MOC256M is an AC input phototransistor optocoupler designed for detecting or monitoring AC signals. The device consists of two infrared emitters connected in anti-parallel and coupled to a silicon NPN phototransistor detector. It is constructed with a standard SOIC-8 footprint and offers bidirectional AC input protection against reversed DC bias.
Key features include UL and VDE recognition, a guaranteed CTR symmetry of 2:1 maximum, and high input-output isolation of 2500 Vac (rms). The datasheet provides absolute maximum ratings, electrical characteristics, typical performance curves, package dimensions, ordering information, and reflow profile specifications for Pb-free assembly.
| Input-Output Isolation Voltage | 2500 Vac (rms) |
|---|---|
| Package Type | SOIC-8 |
| Lead Spacing | 0.050" |
| CTR Symmetry | 2:1 maximum |
| Ambient Operating Temperature | -40 to +100 °C |
| Forward Current (Continuous) | 60 mA |
| Collector Current (Continuous) | 150 mA |
Yes, the device is available in a tape and reel option.
Yes, it features bidirectional AC input protection against reversed DC bias.
The guaranteed input-output isolation voltage is 2500 Vac (rms).