5300Vrms isolation in a rework-friendly DIP
The onsemi H11A617C300 is a single-channel phototransistor optocoupler delivering 5300Vrms of galvanic isolation between a DC input LED and a transistor output — enough to meet basic safety isolation requirements in industrial control, power supply feedback, and signal isolation applications. Housed in a 4-DIP (0.300", 7.62mm) through-hole package, this part is straightforward to hand-solder or rework on a bench — the leads are clearly spaced and the pin 1 indicator is molded into the body, so orientation is unambiguous under a hot-air station or iron.
Availability is lot-specific and confirmed at RFQ time; no stock-holding claim is made here. The 4-DIP package is common across the H11A family, so a pin-compatible functional replacement from the same series (e.g., H11A817 or H11A617 variants) may fit the same footprint — verify the CTR bin and isolation voltage against the original design before committing a replacement.