{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD420","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD420","canonicalUrl":"https://icboms.com/onsemi/FOD420","factsUrl":"https://icboms.com/api/mcp/products/FOD420","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD420 Optoisolator, Triac output, 5000Vrms isolation, 600V off-state, 10kV/µs dV/dt, Through Hole, 6-DIP, Tube.","salesMarkdown":"## Active production — BOM-fit for AC load switching The onsemi FOD420 is an active-production optoisolator with a Triac output, rated for 5000Vrms isolation and 600V off-state voltage. This makes it a fit for switching AC loads like solenoids, relays, or small motors in industrial control panels, where galvanic isolation between the low-voltage logic side and the mains side is required. ## Key ratings that decide the fit The 10kV/µs minimum static dV/dt rating means the output Triac resists false turn-on from fast voltage transients on the AC line — a critical spec when driving inductive loads like contactor coils or motor starters, where line noise is common. The 60µs turn-on time is fast enough for 50/60Hz phase control but not for high-frequency PWM. The -55°C to 100°C operating temperature range covers industrial and outdoor enclosures, though the Triac's on-state voltage drop and thermal dissipation should be checked against the load current at the high end of the range. ## Package and compliance for through-hole assembly Housed in a 6-DIP (0.300\", 7.62mm) through-hole package, the FOD420 mates with standard 0.100-inch pitch DIP sockets or solders directly into a PCB. The 7.62mm body width is the narrow DIP variant, so the pin spacing matches legacy layouts. Approved by cUL, FIMKO, and UL, and ROHS3 compliant — the documentation covers North American and European safety standards for isolation barriers in equipment up to 5000Vrms.","metaTitle":"onsemi FOD420 Optoisolator, Triac Output, 5000Vrms, 6-DIP","metaDescription":"onsemi FOD420 optoisolator with Triac output, 5000Vrms isolation, 600V off-state, 10kV/µs dV/dt. Active, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tube","Output Type":"Triac","Turn On Time":"60µs","Mounting Type":"Through Hole","Package / Case":"6-DIP (0.300\\\", 7.62mm)","Approval Agency":"cUL, FIMKO, UL","lifecycle_stage":"eol_hot","Number of Channels":"1","Static dV/dt (Min)":"10kV/µs","Current - Hold (Ih)":"500µA","Voltage - Isolation":"5000Vrms","Voltage - Off State":"600 V","Operating Temperature":"-55°C ~ 100°C","Zero Crossing Circuit":"No","Supplier Device Package":"6-DIP","Voltage - Forward (Vf) (Typ)":"1.28V","Current - DC Forward (If) (Max)":"30 mA","Current - LED Trigger (Ift) (Max)":"2mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.04","stockQuantity":15,"priceTiers":[{"qty":1,"price":"$4.04000","currency":"USD"},{"qty":10,"price":"$2.86000","currency":"USD"},{"qty":100,"price":"$2.34230","currency":"USD"},{"qty":500,"price":"$1.97458","currency":"USD"},{"qty":1000,"price":"$1.81117","currency":"USD"},{"qty":2000,"price":"$1.73628","currency":"USD"},{"qty":5000,"price":"$1.70223","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4508d0a74baa9082fd3b0c6c58d4edcd.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD420","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD420 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}}