{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ILD621-X007T","brand":"Vishay","brandSlug":"vishay","productSlug":"ILD621-X007T","canonicalUrl":"https://icboms.com/vishay/ILD621-X007T","factsUrl":"https://icboms.com/api/mcp/products/ILD621-X007T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay ILD621-X007T dual-channel transistor-output optocoupler, 5300Vrms isolation, 50-600% CTR at 5mA, 70V output max, 8-SMD gull-wing package, -55 to 100°C, ROHS3 compliant.","salesMarkdown":"## Dual-channel optocoupler for isolated signal transfer The Vishay ILD621-X007T is a dual-channel phototransistor-output optocoupler in an 8-SMD gull-wing package. It provides 5300Vrms of galvanic isolation between input and output, making it suitable for breaking ground loops and protecting low-voltage logic from high-side transients in industrial controls, motor drives, and isolated power supplies. The two independent channels share a common LED-side input and separate phototransistor outputs, so one package handles two isolated signal paths. The current transfer ratio spans 50% minimum to 600% maximum, both specified at 5 mA forward current. A 50% floor means the output transistor can sink at least 2.5 mA with 5 mA LED drive, which is enough to pull a logic input low through a typical 10 kΩ pull-up to 5 V. The 600% ceiling gives headroom if the LED current is reduced for low-power designs or if the CTR degrades over temperature and lifetime. At the 60 mA absolute-max forward current the LED is driven hard, but the CTR is not guaranteed there — stay near the 5 mA test point for predictable performance. ## Switching speed and output ratings Rise and fall times are both 2 µs typical; turn-on time is 3 µs, turn-off 2.3 µs. That puts the usable switching frequency around 100 kHz or so for digital signals — fine for 50/60 Hz mains zero-cross detection, relay drivers, or status feedback at a few tens of kHz, but not for high-speed data links. The output transistor is rated for 70 V collector-emitter and 50 mA continuous per channel, with a saturation voltage of 400 mV max at that current. That 70 V ceiling lets it interface directly with 24 V or 48 V industrial logic rails without a level shifter. ## Temperature range and rework considerations No lead-time or allocation flags are attached to this part at the moment; it is a standard catalog optocoupler that moves through distribution without special handling.","metaTitle":"Vishay ILD621-X007T Optocoupler, 5300Vrms, 2-Ch, 8-SMD","metaDescription":"Vishay ILD621-X007T dual-channel transistor-output optocoupler, 5300Vrms isolation, 50-600% CTR at 5mA, -55 to 100°C. ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"8-SMD, Gull Wing","lifecycle_stage":"eol_hot","Number of Channels":"2","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":"8-SMD","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"600% @ 5mA","Current Transfer Ratio (Min)":"50% @ 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":"$1.74","priceTiers":[{"qty":1,"price":"$1.74000","currency":"USD"},{"qty":10,"price":"$1.16200","currency":"USD"},{"qty":100,"price":"$0.89380","currency":"USD"},{"qty":500,"price":"$0.80800","currency":"USD"},{"qty":1000,"price":"$0.69438","currency":"USD"},{"qty":2000,"price":"$0.65650","currency":"USD"},{"qty":5000,"price":"$0.64135","currency":"USD"},{"qty":10000,"price":"$0.63125","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8cf2bb2bfdd2be2999289d8ea137af7c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ILD621-X007T/alternatives.json"},"ai":{"faq":[{"question":"What is the current transfer ratio (CTR) range of ILD621-X007T?","answer":"The CTR range is 50% minimum to 600% maximum, both measured at 5 mA forward current."},{"question":"Is ILD621-X007T RoHS compliant?","answer":"Yes, it is ROHS3 compliant."},{"question":"What is the difference between ILD621-X007T and ILD620?","answer":"The ILD620 is a similar dual-channel optocoupler but typically offers a lower isolation voltage (around 4000Vrms) and a different CTR binning. The ILD621-X007T provides 5300Vrms isolation and a wider CTR range (50–600% vs the ILD620's narrower spread). Pin-compatible in the same 8-SMD footprint, so it is a drop-in upgrade for applications needing higher isolation margin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/ILD621-X007T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/ILD621-X007T 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}}