{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCLT1018","brand":"Vishay","brandSlug":"vishay","productSlug":"TCLT1018","canonicalUrl":"https://icboms.com/vishay/TCLT1018","factsUrl":"https://icboms.com/api/mcp/products/TCLT1018","rawCanonicalId":null},"summary":{"shortDescription":"Vishay TCLT1018 single-channel transistor-output optocoupler, 5000 Vrms isolation, 130-260% CTR at 5 mA, 4-SOP gull-wing surface-mount package.","salesMarkdown":"The TCLT1018 is a single-channel transistor-output optocoupler from Vishay in a 4-SOP gull-wing package. That 5000 Vrms isolation rating is the one-ship guarantee — it separates the low-voltage control side from the high-voltage bus in a motor drive or a PSU feedback loop, and it passes reinforced insulation testing per IEC 60950-1 without the creepage distance a DIP-4 would need. ## CTR window and switching speed — the real selection knobs Current transfer ratio runs from 130% minimum to 260% maximum at 5 mA forward current — that is a tight bin, so the LED drive resistor stays the same across reel lots and the output transistor saturates predictably without overdriving the input side. Rise and fall times are 3 µs and 4.7 µs typical, with turn-on and turn-off times of 6 µs and 5 µs respectively. That puts the usable switching frequency around 50-60 kHz for a logic-level signal — fast enough for IGBT gate-drive feedback or a digital isolator replacement in a non-isolated DC bus sense circuit. Output transistor holds off 70 V and sinks 50 mA continuous — enough to drive a 24 V PLC input or a small relay coil directly without a buffer transistor. ## Active production and compliance The -55°C to +110°C operating range covers industrial and telecom ambient — the 110°C ceiling gives margin above the 85°C typical for outdoor cabinet electronics.","metaTitle":"Vishay TCLT1018 Optocoupler, 5000Vrms, 4-SOP","metaDescription":"Vishay TCLT1018 single-channel transistor output optocoupler. 5000Vrms isolation, 130-260% CTR at 5mA. Active, ROHS3. Surface mount 4-SOP. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"4-SMD, Gull Wing","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"300mV","Operating Temperature":"-55°C ~ 110°C","Rise / Fall Time (Typ)":"3µs, 4.7µs","Voltage - Output (Max)":"70V","Supplier Device Package":"4-SOP","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"260% @ 5mA","Current Transfer Ratio (Min)":"130% @ 5mA","Voltage - Forward (Vf) (Typ)":"1.25V","Turn On / Turn Off Time (Typ)":"6µs, 5µs","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.83","stockQuantity":23,"priceTiers":[{"qty":1,"price":"$0.83000","currency":"USD"},{"qty":10,"price":"$0.53800","currency":"USD"},{"qty":100,"price":"$0.35230","currency":"USD"},{"qty":1000,"price":"$0.27810","currency":"USD"},{"qty":3000,"price":"$0.25956","currency":"USD"},{"qty":6000,"price":"$0.25029","currency":"USD"},{"qty":15000,"price":"$0.24658","currency":"USD"},{"qty":30000,"price":"$0.24102","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fd0bdc09576d15517174eec85579d1f0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current transfer ratio of TCLT1018?","answer":"The CTR is 130% minimum to 260% maximum at 5 mA forward current, giving a tight bin that keeps the LED drive consistent across production lots."},{"question":"What compliance documentation does Vishay provide for TCLT1018?","answer":"The TCLT1018 is ROHS3 compliant per Vishay's current lifecycle status."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/TCLT1018","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/TCLT1018 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}}