{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HMHAA280R2","brand":"onsemi","brandSlug":"onsemi","productSlug":"HMHAA280R2","canonicalUrl":"https://icboms.com/onsemi/HMHAA280R2","factsUrl":"https://icboms.com/api/mcp/products/HMHAA280R2","rawCanonicalId":null},"summary":{"shortDescription":"onsemi HMHAA280R2 Optoisolator, 1-channel, 3750Vrms isolation, AC/DC input, Transistor output, 50mA output, 4-Mini-FLAT SM package, Tape & Reel / Cut Tape.","salesMarkdown":"The HMHAA280R2 is a single-channel optocoupler from onsemi, providing 3750Vrms of galvanic isolation between an AC or DC input LED and a phototransistor output. Its current transfer ratio spans 50% to 600% at a forward current of 5mA, covering a wide range of logic-level or low-current signal isolation needs. The device operates across -55°C to 100°C, suiting it for industrial and telecom environments where temperature extremes are routine. ## Switching and output characteristics Rise and fall times are both 3µs typical, enabling signal isolation up to roughly 160 kHz data rates before the output waveform degrades. The phototransistor can sink up to 50mA continuous output current with a maximum Vce saturation of 400mV at the rated forward current — adequate for driving downstream logic inputs or low-power relays. Maximum output voltage across the transistor is 80V, and the LED forward voltage is 1.4V maximum at 50mA forward current. ## Package, mounting, and compliance Housed in a 4-SOIC (0.173\", 4.40mm width) surface-mount package, the HMHAA280R2 is also designated as supplier device package 4-Mini-Flat.","metaTitle":"onsemi HMHAA280R2 Optoisolator, 3750Vrms, Transistor Output","metaDescription":"onsemi HMHAA280R2 optocoupler, 1-channel, 3750Vrms isolation, 50%–600% CTR at 5mA, AC/DC input, -55°C to 100°C, 4-Mini-FLAT, ROHS3. Sourced to order.","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":"$0.96","stockQuantity":23,"priceTiers":[{"qty":1,"price":"$1.02000","currency":"USD"},{"qty":10,"price":"$0.66400","currency":"USD"},{"qty":100,"price":"$0.43520","currency":"USD"},{"qty":1000,"price":"$0.34360","currency":"USD"},{"qty":2500,"price":"$0.32069","currency":"USD"},{"qty":5000,"price":"$0.30924","currency":"USD"},{"qty":12500,"price":"$0.30466","currency":"USD"},{"qty":25000,"price":"$0.29779","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dbb59191bf3b6443a968d5aad240ef24.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the key isolation and output ratings of HMHAA280R2?","answer":"It provides 3750Vrms isolation, 50mA continuous output current per channel, and a current transfer ratio of 50% to 600% at 5mA forward current. The transistor output handles up to 80V with 400mV max saturation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/HMHAA280R2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/HMHAA280R2 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}}