{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD8173T","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD8173T","canonicalUrl":"https://icboms.com/onsemi/FOD8173T","factsUrl":"https://icboms.com/api/mcp/products/FOD8173T","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD8173T optoisolator, 1-channel, 20 Mbps data rate, 5000 Vrms isolation, push-pull totem-pole output, 6-SOIC wide-body surface-mount package, tube.","salesMarkdown":"## 20 Mbps digital isolation with reinforced 5 kVrms barrier The onsemi FOD8173T is a single-channel digital optoisolator that pushes 20 Mbps through a 5000 Vrms reinforced isolation barrier — fast enough for Profibus, CAN, or RS-485 lines where galvanic separation is a safety or noise requirement. ## CMTI and propagation delay — the timing-critical specs Common-mode transient immunity is 20 kV/µs minimum — the part will not falsely toggle its output when a motor drive or switching supply slams 20 kV/µs across the barrier. That figure is the floor, not a typical, so it holds across temperature and supply voltage. Propagation delay is 55 ns max, symmetric between low-to-high and high-to-low transitions. Symmetry means the output pulse width matches the input pulse width within the delay budget — no duty-cycle distortion beyond that 55 ns window. ## Wide-body SOIC for creepage and clearance The 6-SOIC package is the 6.80 mm wide-body variant — the extra width (vs a standard 3.9 mm SOIC) gives 8 mm creepage distance across the package surface, which is what supports the 5000 Vrms isolation rating in a surface-mount assembly. Supplier device package is 6-SOP, which lands on the same PCB footprint as a standard SOIC-6 wide-body. No special pad pattern beyond what the datasheet recommends for the 6.80 mm body. ## Active lifecycle — no EOL watch needed Base product number is FOD8173, so the FOD8173T variant (tube packaging) shares the same die and qualification as the tape-and-reel sibling. No difference in the isolation or speed ratings between the packaging options.","metaTitle":"FOD8173T onsemi Optoisolator, 20 Mbps, 5000 Vrms, Push-Pull","metaDescription":"onsemi FOD8173T optoisolator with 20 Mbps data rate, 5000 Vrms isolation, 20 kV/µs CMTI. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","Data Rate":"20Mbps","Input Type":"DC","Output Type":"Push-Pull, Totem Pole","Mounting Type":"Surface Mount","Package / Case":"6-SOIC (0.268\\\", 6.80mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Number of Channels":"1","Base Product Number":"FOD8173","Voltage - Isolation":"5000Vrms","Operating Temperature":"-40°C~100°C","Inputs - Side 1/Side 2":"1/0","Rise / Fall Time (Typ)":"7ns, 7ns","Supplier Device Package":"6-SOP","Current - Output / Channel":"10 mA","Voltage - Forward (Vf) (Typ)":"1.35V","Current - DC Forward (If) (Max)":"20mA","Propagation Delay tpLH / tpHL (Max)":"55ns, 55ns","Common Mode Transient Immunity (Min)":"20kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.6500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f61481d1b5ec7fbe69971fb84107ba75.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the FOD8173T used for?","answer":"It isolates a 20 Mbps digital signal across a 5000 Vrms reinforced barrier. Typical applications include isolating a CAN or RS-485 transceiver from a host MCU, breaking ground loops in motor drive feedback paths, and providing safety isolation in medical equipment where 5000 Vrms is the reinforced insulation level per IEC 60601-1."},{"question":"How does the FOD8173T compare to the FOD8173?","answer":"The FOD8173T is the tube-packaged variant of the base FOD8173 die. The electrical specifications — 20 Mbps data rate, 5000 Vrms isolation, 20 kV/µs CMTI, 55 ns propagation delay — are identical. The only difference is the shipping medium: tube vs tape-and-reel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD8173T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD8173T 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}}