The onsemi H11A3300W is a single-channel phototransistor optoisolator in a 6-DIP through-hole package. It accepts DC input on the LED side and provides a transistor output with base access, rated for 5300Vrms isolation between input and output. Minimum current transfer ratio is 20% at 10 mA forward current, with a typical forward voltage of 1.18V. Switching is specified at 2 µs turn-on and 2 µs turn-off typical, suiting it for moderate-speed isolation in control and signal circuits. Operating temperature spans -55°C to 100°C, covering industrial and some military-grade environments. Maximum output voltage is 30V, and Vce saturation is 400 mV max.
onsemi lists the H11A3300W as Obsolete. For sustainment programs or repair of existing boards, this part is sourced through independent distribution channels.