{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HMHAA280","brand":"onsemi","brandSlug":"onsemi","productSlug":"HMHAA280","canonicalUrl":"https://icboms.com/onsemi/HMHAA280","factsUrl":"https://icboms.com/api/mcp/products/HMHAA280","rawCanonicalId":null},"summary":{"shortDescription":"onsemi HMHAA280, single-channel optoisolator, 3750Vrms isolation, AC/DC input, transistor output, 4-SOIC (0.173\", 4.40mm Width) surface-mount package, Tube.","salesMarkdown":"## Isolation rating that sets the safety margin The HMHAA280 delivers 3750Vrms isolation between input and output. The 4-SOIC package keeps the creepage distance tight. ## AC/DC input simplifies the front end Unlike many optos that only pass DC forward current, the HMHAA280 accepts both AC and DC input drive. That means a single device can sense an AC line zero-cross or a DC logic level without an external bridge or polarity diode. The forward voltage is 1.4V max at 50 mA — budget the series resistor for the input supply rail. ## Temperature range and output drive Rated from -55°C to 100°C, the HMHAA280 spans industrial and outdoor telecom enclosures without needing a separate extended-temp variant. The transistor output sinks up to 50 mA continuous at 80V max, with a typical 3 µs rise and fall time — fast enough for 100 kHz switching or PLC input sampling. Vce saturation is 400 mV max, so the voltage drop across the output at full load stays under half a volt. ## Lifecycle and sourcing posture Status is Active per onsemi's current product portfolio. ROHS3 compliant. The 4-Mini-Flat package (Supplier Device Package) is the same footprint as the 4-SOIC; both refer to the same physical part.","metaTitle":"HMHAA280 onsemi Optoisolator – 3750Vrms, AC/DC Input","metaDescription":"onsemi HMHAA280 optoisolator: 3750Vrms isolation, AC/DC input, transistor output, 4-SOIC surface mount. Active lifecycle, ROHS3 compliant. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tube","Input Type":"AC, DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"4-SOIC (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"3750Vrms","Vce Saturation (Max)":"400mV","Operating Temperature":"-55°C ~ 100°C","Rise / Fall Time (Typ)":"3µs, 3µs","Voltage - Output (Max)":"80V","Supplier Device Package":"4-Mini-Flat","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"600% @ 5mA","Current Transfer Ratio (Min)":"50% @ 5mA","Voltage - Forward (Vf) (Typ)":"1.4V (Max)","Current - DC Forward (If) (Max)":"50 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.70000","currency":"USD"},{"qty":10,"price":"$0.45400","currency":"USD"},{"qty":100,"price":"$0.29740","currency":"USD"},{"qty":1000,"price":"$0.23482","currency":"USD"},{"qty":2000,"price":"$0.21917","currency":"USD"},{"qty":5000,"price":"$0.21134","currency":"USD"},{"qty":10000,"price":"$0.20821","currency":"USD"},{"qty":25000,"price":"$0.20352","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dbb59191bf3b6443a968d5aad240ef24.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/HMHAA280","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/HMHAA280 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:09:01.410Z","lastPublished":"2026-07-17T20:09:01.410Z","indexable":true}}