{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ILD55","brand":"Vishay","brandSlug":"vishay","productSlug":"ILD55","canonicalUrl":"https://icboms.com/vishay/ILD55","factsUrl":"https://icboms.com/api/mcp/products/ILD55","rawCanonicalId":null},"summary":{"shortDescription":"Vishay ILD55 dual-channel Darlington optocoupler, 5300 Vrms isolation, 100% CTR min at 10 mA, 55 V output max, 125 mA per channel, 8-DIP through-hole, tube.","salesMarkdown":"## Dual Darlington optocoupler with 5.3 kV isolation The Vishay ILD55 is a dual-channel Darlington-output optocoupler in an 8-DIP through-hole package. It provides 5300 Vrms galvanic isolation between the DC input LED and the Darlington output stage, making it suitable for isolating logic signals in industrial control, PLC I/O, and motor-drive feedback paths. Each channel delivers up to 125 mA output current with a maximum Vce saturation of 1 V, and the output can handle up to 55 V. The minimum current transfer ratio of 100% at 10 mA forward current ensures reliable switching even with moderate LED drive. ## Switching speed and temperature range Typical rise and fall times are 10 µs and 35 µs respectively — this suits low-to-moderate speed isolation applications such as status feedback, relay replacement, or 50/60 Hz zero-cross detection. For higher data rates, a phototransistor-output optocoupler would be a better fit. The operating temperature range of -55°C to +100°C covers industrial and outdoor environments, including cold-start conditions and enclosures near warm machinery.","metaTitle":"Vishay ILD55 Dual Darlington Optocoupler, 5300 Vrms, 8-DIP","metaDescription":"Vishay ILD55 dual-channel Darlington optocoupler, 5300 Vrms isolation, 100% CTR min at 10 mA, 8-DIP through-hole. Active, ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Input Type":"DC","Output Type":"Darlington","Mounting Type":"Through Hole","Package / Case":"8-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Number of Channels":"2","Voltage - Isolation":"5300Vrms","Vce Saturation (Max)":"1V","Operating Temperature":"-55°C ~ 100°C","Rise / Fall Time (Typ)":"10µs, 35µs","Voltage - Output (Max)":"55V","Supplier Device Package":"8-DIP","Current - Output / Channel":"125mA","Current Transfer Ratio (Min)":"100% @ 10mA","Voltage - Forward (Vf) (Typ)":"1.25V","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.69","priceTiers":[{"qty":1,"price":"$2.69000","currency":"USD"},{"qty":10,"price":"$1.79100","currency":"USD"},{"qty":100,"price":"$1.37830","currency":"USD"},{"qty":500,"price":"$1.24588","currency":"USD"},{"qty":1000,"price":"$1.07068","currency":"USD"},{"qty":2000,"price":"$1.01229","currency":"USD"},{"qty":5000,"price":"$0.98892","currency":"USD"},{"qty":10000,"price":"$0.97335","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ILD55/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/ILD55","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/ILD55 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}}