The onsemi H11A5VM is a single-channel optoisolator in a 6-DIP through-hole package, designed to transfer a DC signal across a galvanic isolation barrier using a phototransistor output with base access. Rated for 7500Vpk isolation, it suits applications requiring a reinforced safety barrier — medical patient-interface circuits, industrial sensor isolation, or power-supply feedback loops where the primary and secondary sides must not share a ground path. The minimum current transfer ratio is 30% at 10 mA forward current, with typical turn-on and turn-off times of 2 µs each — fast enough for 100 kHz-level switching in logic-level signal isolation.
Isolation and switching performance
The 7500Vpk isolation voltage is a peak rating, not continuous — it defines the transient withstand capability between input and output. For a medical device requiring 5 kV reinforced isolation per IEC 60601, this part provides margin above the minimum. Output transistor Vce saturation is 400 mV max at the rated drive condition, keeping the on-state voltage drop low enough to not pull the downstream logic rail out of threshold. Maximum output voltage is 30 V, sufficient for 24 V industrial logic levels. Operating temperature spans -40°C to 100°C, covering industrial enclosures and outdoor telecom cabinets without derating.
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The 7.62 mm row spacing is the standard wide-body DIP footprint — no custom pad geometry needed. No reel quantity constraints apply.