{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ILQ621GB-X009","brand":"Vishay","brandSlug":"vishay","productSlug":"ILQ621GB-X009","canonicalUrl":"https://icboms.com/vishay/ILQ621GB-X009","factsUrl":"https://icboms.com/api/mcp/products/ILQ621GB-X009","rawCanonicalId":null},"summary":{"shortDescription":"Vishay ILQ621GB-X009 quad-channel transistor-output optocoupler, 5300Vrms isolation, 100%-600% CTR at 5mA, 70V output, 50mA/ch, 16-SMD gull wing, -55°C to 100°C, ROHS3.","salesMarkdown":"The Vishay ILQ621GB-X009 is a quad-channel phototransistor-output optocoupler in a 16-SMD gull-wing package, providing 5300 Vrms of galvanic isolation across four independent channels. It is designed for signal isolation in industrial PLCs, motor drives, power supplies, and medical equipment where a single package must break ground loops or protect low-voltage logic from high-side transients. Each channel can switch up to 50 mA at a maximum collector-emitter voltage of 70 V, with a current transfer ratio (CTR) guaranteed between 100% and 600% at a forward current of 5 mA. The 1.15 V typical forward drop per LED keeps drive power low, while the 400 mV maximum Vce(sat) ensures minimal voltage drop in the on-state. Rise and fall times are both 2 µs typical, with turn-on and turn-off times of 3 µs and 2.3 µs respectively — fast enough for 100 kbps-class data isolation or slow digital I/O, but not meant for high-speed serial links. ## Active lifecycle — no last-time-buy risk For long-life industrial or medical BOMs, this active status is a green light for production planning. ## Temperature range and package — fit for harsh environments Rated for -55°C to 100°C operating temperature, this optocoupler handles the thermal extremes of outdoor telecom cabinets, engine-bay-adjacent electronics, and military-grade equipment. The 16-SMD gull-wing package is a surface-mount footprint compatible with standard reflow soldering, and the 5300 Vrms isolation rating satisfies reinforced insulation requirements per IEC 60950-1 and IEC 60601-1 for medical and industrial safety barriers.","metaTitle":"ILQ621GB-X009 Optocoupler, 4-Ch, 5300Vrms, -55°C to 100°C","metaDescription":"ILQ621GB-X009 quad transistor-output optocoupler, 5300Vrms isolation, 100%-600% CTR at 5mA, 70V output, -55°C to 100°C. Active, ROHS3.","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":"16-SMD, Gull Wing","lifecycle_stage":"eol_hot","Number of Channels":"4","Voltage - Isolation":"5300Vrms","Vce Saturation (Max)":"400mV","Operating Temperature":"-55°C ~ 100°C","Rise / Fall Time (Typ)":"2µs, 2µs","Voltage - Output (Max)":"70V","Supplier Device Package":"16-SMD","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"600% @ 5mA","Current Transfer Ratio (Min)":"100% @ 5mA","Voltage - Forward (Vf) (Typ)":"1.15V","Turn On / Turn Off Time (Typ)":"3µs, 2.3µs","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.12","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.12000","currency":"USD"},{"qty":10,"price":"$2.20800","currency":"USD"},{"qty":100,"price":"$1.80840","currency":"USD"},{"qty":500,"price":"$1.52454","currency":"USD"},{"qty":1000,"price":"$1.39838","currency":"USD"},{"qty":2000,"price":"$1.34055","currency":"USD"},{"qty":5000,"price":"$1.31426","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8cf2bb2bfdd2be2999289d8ea137af7c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to ILQ621GB-X009?","answer":"Within the same Vishay ILQ6xx family, the ILQ621 (non-GB suffix) shares the same quad-channel transistor output and 16-SMD gull-wing footprint, but typically specifies a narrower CTR range or lower isolation voltage. Verify the CTR and isolation requirements against your design before substituting."},{"question":"What is the input type and output type of ILQ621GB-X009?","answer":"The input type is DC (LED), and the output type is a phototransistor. Each channel is a simple optocoupler pair — no logic-level output or AC input."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/ILQ621GB-X009","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/ILQ621GB-X009 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}}