The onsemi MOC8106SM is a single-channel optoisolator with a DC-input LED and a phototransistor output, housed in a 6-SMD gull-wing package. The current transfer ratio (CTR) is specified at 50% minimum and 150% maximum when the LED is driven at 10mA forward current — this range gives the designer a known gain window for the logic-level translation, so the pull-up resistor on the output side can be sized to guarantee a logic low across temperature and device variation. Output rating is 70V collector-emitter maximum with a 50mA continuous current per channel, and the Vce saturation is clamped at 400mV — low enough to keep the output swing close to ground when driving a logic input or a low-side relay coil. Switching speed is characterised by a 4µs rise and 3.5µs fall time (typical), with turn-on at 2µs and turn-off at 3µs — fast enough for 10-20kHz isolated data lines or PLC input modules, but not for high-speed digital isolation above 100kHz.
The 6-SMD gull-wing package (supplier device package 6-SMD) has leads that extend laterally from the body, making it one of the more technician-friendly SMD optoisolators to hand-rework. The gull-wing profile lets you wick solder from each pad individually under a hot-air station without lifting the pad — the lead stands off the board, so flux and solder flow visibly. The tube packaging means parts arrive with leads protected from bending; no tape-and-reel handling issues for low-volume builds. The 100°C ceiling is the junction limit — derate the output current if the ambient near the opto runs above 85°C.
RoHS3 compliant per the current directive, with no exemptions listed.
Sourcing and availability
The active lifecycle means the factory pipeline is still running, so volume orders are repeatable without chasing surplus lots.