{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FODM453","brand":"onsemi","brandSlug":"onsemi","productSlug":"FODM453","canonicalUrl":"https://icboms.com/onsemi/FODM453","factsUrl":"https://icboms.com/api/mcp/products/FODM453","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FODM453, single-channel DC-input transistor-output optocoupler, 3750Vrms isolation, 5-Mini-Flat package (6-SOIC 5-lead), 20%–50% CTR at 16 mA, 400 ns / 350 ns switching, –40 °C to 85 °C.","salesMarkdown":"## Isolation and switching profile for industrial signal paths The FODM453 is a single-channel optocoupler from onsemi that delivers 3750Vrms galvanic isolation between a DC input LED and a phototransistor output. That isolation rating is typical for reinforced insulation in 250 VAC mains-referenced circuits — think PLC digital inputs, motor-drive feedback, or AC-DC converter secondary-side feedback loops. Switching is rated at 400 ns turn-on and 350 ns turn-off typical, which keeps the part clean for 1 MHz-ish pulse trains or PWM edges. The 20% to 50% current transfer ratio at 16 mA forward current gives a predictable saturation margin — if you bias the LED at 16 mA, the output transistor can sink up to 8 mA with a Vce well below 0.4 V across the industrial temperature range. ## Package and footprint — 5-lead 6-SOIC Housed in a 5-Mini-Flat package, the FODM453 uses a 6-SOIC (0.173-inch, 4.40 mm width) body with five leads — one lead position is omitted for pin-1 orientation. The surface-mount footprint is compatible with standard SOIC-6 land patterns; the 4.40 mm body width is narrower than the 7.5 mm wide SO-8, so check your existing optocoupler pad layout before dropping this in as a drop-in swap. The 85°C ceiling covers most industrial enclosures and outdoor telecom cabinets but stops short of under-hood automotive — if your BOM sees sustained 105°C ambient, you need a higher-temperature grade. ## Production status and sourcing posture Sourcing is straightforward: we quote the FODM453 to order against your BOM quantity.","metaTitle":"FODM453 Optoisolator – onsemi, 3750Vrms, Transistor Output","metaDescription":"onsemi FODM453 single-channel optocoupler: 3750Vrms isolation, 20-50% CTR at 16mA, 400ns/350ns switching, -40°C to 85°C. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"6-SOIC (0.173\\\", 4.40mm Width), 5 Leads","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"3750Vrms","Operating Temperature":"-40°C ~ 85°C","Voltage - Output (Max)":"20V","Supplier Device Package":"5-Mini-Flat","Current - Output / Channel":"8mA","Current Transfer Ratio (Max)":"50% @ 16mA","Current Transfer Ratio (Min)":"20% @ 16mA","Voltage - Forward (Vf) (Typ)":"1.6V","Turn On / Turn Off Time (Typ)":"400ns, 350ns","Current - DC Forward (If) (Max)":"25 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.35","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.35000","currency":"USD"},{"qty":10,"price":"$1.56900","currency":"USD"},{"qty":100,"price":"$1.20720","currency":"USD"},{"qty":500,"price":"$1.09128","currency":"USD"},{"qty":1000,"price":"$0.93782","currency":"USD"},{"qty":2000,"price":"$0.88667","currency":"USD"},{"qty":5000,"price":"$0.86621","currency":"USD"},{"qty":10000,"price":"$0.85257","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3aa9d4c8e83886320fa768e34a3251a1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the FODM453 a direct replacement for the FODM2701?","answer":"Both are single-channel DC-input transistor-output optocouplers in similar 5-Mini-Flat packages, but the FODM2701 has a wider temperature range (-40°C to 110°C) and slower rise/fall times (3 µs typical). The FODM453 switches faster (400 ns/350 ns) and is rated to 85°C. Check your switching speed and ambient temperature requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FODM453","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FODM453 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}