{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD8173S","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD8173S","canonicalUrl":"https://icboms.com/onsemi/FOD8173S","factsUrl":"https://icboms.com/api/mcp/products/FOD8173S","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD8173S, single-channel DC-input transistor-output optoisolator, 5000Vrms isolation, 4-SMD Gull Wing surface-mount package, -55°C to 110°C operating range.","salesMarkdown":"## Isolation barrier and output drive — what the 5000Vrms and 50 mA mean on the board The FOD8173S provides 5000Vrms isolation between the DC input LED and the phototransistor output — a reinforced insulation class that suits mains-referenced control circuits, motor-drive feedback, and medical patient-interface barriers where the safety agency demands a 5 kV rating. Output is a single NPN phototransistor rated to 70 V and 50 mA continuous — enough to drive a PLC digital input, a relay coil through a transistor buffer, or a logic-level gate without an extra gain stage. ## Temperature range and switching speed — fit for industrial control loops ## Surface-mount assembly and package availability The 4-SMD Gull Wing package (supplier device package 4-SMD) is a surface-mount footprint that reflows on a standard lead-free profile — no through-hole wave-solder step, which saves a process pass on a mixed-technology board. Supplied in Tube — the tube quantity is the standard for this package; for tape-and-reel volume, the sibling FOD817ASD is the reeled variant if your pick-and-place line is set up for reel feed. ROHS3 compliant. No PCN or LTB risk for the current BOM cycle.","metaTitle":"FOD8173S onsemi Optoisolator 5000Vrms Transistor Output","metaDescription":"onsemi FOD8173S optoisolator: 5000Vrms isolation, DC input, transistor output, 50%–600% CTR at 5mA, -55°C to 110°C, 4-SMD Gull Wing. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"4-SMD, Gull Wing","Product Status":"Active","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"FOD817","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"200mV","Operating Temperature":"-55°C~110°C","Rise / Fall Time (Typ)":"4µs, 3µs","Voltage - Output (Max)":"70V","Supplier Device Package":"4-SMD","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"600% @ 5mA","Current Transfer Ratio (Min)":"50% @ 5mA","Voltage - Forward (Vf) (Typ)":"1.2V","Turn On / Turn Off Time (Typ)":"-","Current - DC Forward (If) (Max)":"50 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5500","priceTiers":[{"qty":1,"price":"$0.57000","currency":"USD"},{"qty":10,"price":"$0.37700","currency":"USD"},{"qty":100,"price":"$0.24930","currency":"USD"},{"qty":1000,"price":"$0.19250","currency":"USD"},{"qty":2000,"price":"$0.17395","currency":"USD"},{"qty":5000,"price":"$0.16235","currency":"USD"},{"qty":10000,"price":"$0.15655","currency":"USD"},{"qty":25000,"price":"$0.15423","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/97f795ec3476128abe24ed3f2e223d6c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/FOD8173S/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD8173S","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD8173S when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}