{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLP385(D4BL-TL,E","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TLP385D4BL-TLE","canonicalUrl":"https://icboms.com/toshiba/TLP385D4BL-TLE","factsUrl":"https://icboms.com/api/mcp/products/TLP385(D4BL-TL%2CE","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba TLP385(D4BL-TL,E 1-channel DC-input transistor-output photocoupler, 5000Vrms isolation, 200% to 600% CTR at 5mA, 80V output max, 50mA output current, 6-SOIC 4-lead package, -55°C to 110°C, Tape & Reel.","salesMarkdown":"## 5000Vrms isolation in a 4-pin SOIC The Toshiba TLP385(D4BL-TL,E is a single-channel transistor-output photocoupler in a 6-SOIC package with 4 leads, providing 5000Vrms galvanic isolation between a DC input LED and a phototransistor output. The output transistor is rated for 80V maximum and 50mA continuous current, with a Vce saturation of 300mV typical — enough to drive logic-level inputs or small relays directly. The current transfer ratio spans 200% to 600% at a forward current of 5mA, giving design margin for degraded LED output over temperature and life. ## CTR range and switching speed With a minimum CTR of 200% at 5mA, this part can maintain a logic-high output even with significant LED current droop due to temperature or aging. The typical turn-on and turn-off times are both 3µs, with rise and fall times of 2µs and 3µs respectively, making it suitable for 100 kbps signalling or slower — not a high-speed digital isolator, but adequate for status feedback, relay drivers, and isolated I/O in industrial controllers. ## Temperature range and environment Rated for -55°C to 110°C operating temperature, this photocoupler can be deployed in environments from cold storage to engine-bay adjacent electronics. The wide temperature grade suits industrial automation, motor drives, and power-supply feedback loops where ambient heat is a concern. ## Lifecycle and compliance Listed as Active product status, with RoHS compliance. The Tape & Reel variant (D4BL suffix) is the standard reel option; cut tape is also available for prototyping.","metaTitle":"TLP385(D4BL-TL,E Photocoupler, 5000Vrms, DC Input","metaDescription":"Toshiba TLP385(D4BL-TL,E 1-channel transistor-output photocoupler, 5000Vrms isolation, 200-600% CTR at 5mA, -55 to 110°C. Active, RoHS.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS 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":"6-SOIC (0.173\\\", 4.40mm Width), 4 Leads","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)":"2µs, 3µs","Voltage - Output (Max)":"80V","Supplier Device Package":"6-SO, 4 Lead","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"600% @ 5mA","Current Transfer Ratio (Min)":"200% @ 5mA","Voltage - Forward (Vf) (Typ)":"1.25V","Turn On / Turn Off Time (Typ)":"3µs, 3µs","Current - DC Forward (If) (Max)":"50 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.54","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.54000","currency":"USD"},{"qty":10,"price":"$0.35500","currency":"USD"},{"qty":100,"price":"$0.23450","currency":"USD"},{"qty":1000,"price":"$0.18107","currency":"USD"},{"qty":3000,"price":"$0.16362","currency":"USD"},{"qty":6000,"price":"$0.15271","currency":"USD"},{"qty":15000,"price":"$0.14726","currency":"USD"},{"qty":30000,"price":"$0.14508","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/331d269fb9551bcaaac5f6b0e0ad3456.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current transfer ratio (CTR) of TLP385(D4BL-TL,E)?","answer":"The CTR is specified at 200% minimum and 600% maximum, tested at a forward current of 5mA. This wide range provides ample headroom for degraded LED output over temperature and lifetime."},{"question":"Is TLP385(D4BL-TL,E) obsolete or End-of-Life?","answer":"No, the product status is Active."},{"question":"What is the Vce saturation of TLP385?","answer":"The Vce saturation is 300mV maximum, allowing the output transistor to drive logic-level loads with minimal voltage drop."},{"question":"What is the equivalent or replacement for TLP385?","answer":"Within the same TLP385 family, the TLP385(D4Y-TPL,E, TLP385(D4GR-TL,E, and TLP385(D4GH-TL,E share identical electrical specs (5000Vrms, 200-600% CTR, 300mV Vce sat, 80V/50mA output) but differ in packaging or reel options. The D4BL variant is the standard Tape & Reel offering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TLP385D4BL-TLE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TLP385D4BL-TLE 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}}