{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HMHAA280R2V","brand":"onsemi","brandSlug":"onsemi","productSlug":"HMHAA280R2V","canonicalUrl":"https://icboms.com/onsemi/HMHAA280R2V","factsUrl":"https://icboms.com/api/mcp/products/HMHAA280R2V","rawCanonicalId":null},"summary":{"shortDescription":"onsemi HMHAA280R2V optoisolator, 1-channel, AC/DC input, transistor output, 3750Vrms isolation, 4-Mini-Flat SMD package, Tape & Reel.","salesMarkdown":"The onsemi HMHAA280R2V is a single-channel optoisolator with a phototransistor output, housed in a 4-Mini-Flat surface-mount package (4-SOIC, 0.173\" width, 4.40mm body). It accepts both AC and DC input drive, making it suitable for coupling signals from either polarity or line-voltage sensing circuits. Rated for 3750Vrms isolation, this part provides a basic safety barrier between input and output sides — typical for applications where galvanic separation is needed between a low-voltage controller and a higher-voltage load or sensor interface. With a typical rise and fall time of 3µs each, it handles moderate-speed switching up to roughly 100 kHz before propagation delay becomes a limiting factor. ## Temperature grade and operating envelope Operating from -55°C to 100°C, the HMHAA280R2V covers the full industrial temperature range. The output transistor can sink up to 50mA continuous and withstand up to 80V across the collector-emitter path, with a saturation voltage of 400mV max at rated current. Maximum forward current is 50mA, with a typical forward voltage of 1.4V. The 4-Mini-Flat package keeps the board footprint small — about 4.4mm × 5.0mm — and the surface-mount profile suits high-volume pick-and-place assembly.","metaTitle":"onsemi HMHAA280R2V Optoisolator, 3750Vrms, 4-SOIC","metaDescription":"onsemi HMHAA280R2V optoisolator, 3750Vrms isolation, transistor output, 50-600% CTR at 5mA, -55°C to 100°C, 4-Mini-Flat SMD. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","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":"$1.09","stockQuantity":21,"priceTiers":[{"qty":1,"price":"$1.09000","currency":"USD"},{"qty":10,"price":"$0.70700","currency":"USD"},{"qty":100,"price":"$0.46340","currency":"USD"},{"qty":1000,"price":"$0.36587","currency":"USD"},{"qty":2500,"price":"$0.34148","currency":"USD"},{"qty":5000,"price":"$0.32929","currency":"USD"},{"qty":12500,"price":"$0.32441","currency":"USD"},{"qty":25000,"price":"$0.31709","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dbb59191bf3b6443a968d5aad240ef24.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for HMHAA280R2V — FODM1009?","answer":"The FODM1009 is a single-channel transistor-output optoisolator in a similar 4-pin Mini-Flat package, but it accepts only DC input, not AC/DC like the HMHAA280R2V. The HMHAA280R2V's AC/DC input is its distinguishing feature — if your circuit drives the LED with AC or bipolar signals, the FODM1009 will not drop in without a circuit change. For DC-only applications, the FODM1009 is a functional alternative with 5000Vrms isolation and a 300mV Vce sat."},{"question":"What compliance documentation does onsemi provide for HMHAA280R2V?","answer":"The HMHAA280R2V is ROHS3 compliant per onsemi's listing. Standard documentation includes the datasheet with electrical characteristics, package outline drawing, and the ROHS declaration of compliance. No UL or IEC certification is explicitly stated in the available records."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/HMHAA280R2V","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/HMHAA280R2V when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}