{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLP385(TPL,E","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TLP385TPLE","canonicalUrl":"https://icboms.com/toshiba/TLP385TPLE","factsUrl":"https://icboms.com/api/mcp/products/TLP385(TPL%2CE","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba TLP385(TPL,E transistor-output optocoupler, 1 channel, DC input, 5000 Vrms isolation, 50-600% CTR, 80 V output, 50 mA output, 6-SOIC 4-lead package, -55 to 110°C, surface mount.","salesMarkdown":"## 5000 Vrms isolation in a 4-pin SOIC The Toshiba TLP385(TPL,E is a single-channel transistor-output optocoupler in a compact 6-SOIC package with only 4 leads populated. It provides 5000 Vrms of galvanic isolation between a DC-input LED and a phototransistor output, making it a straightforward choice for breaking ground loops in industrial controls, PLC I/O modules, and isolated sensor interfaces. The output transistor can handle up to 80 V and 50 mA continuous, so it can drive small relays or logic inputs directly without a buffer stage. ## CTR range: 50% to 600% at 5 mA The current transfer ratio spans 50% minimum to 600% maximum, both specified at 5 mA forward current. That wide spread means the same part can work with a low-drive GPIO (50% CTR requires 10 mA on the LED to guarantee 5 mA output) or a high-efficiency design where 1 mA LED current still switches the output. The 300 mV maximum Vce saturation at the output keeps voltage drop low when driving a logic input. ## Switching speed: 2 µs rise, 3 µs fall Typical rise and fall times are 2 µs and 3 µs respectively, with turn-on and turn-off both at 3 µs. That places this part in the general-purpose optocoupler class — fast enough for 100 kbps data isolation or 50/60 Hz AC zero-cross detection, but not intended for high-speed digital buses like CAN or RS-485. For those, you would look at a logic-output or high-speed optocoupler. ## Temperature range: -55°C to 110°C Rated for -55°C to 110°C operating ambient, this optocoupler can live in outdoor telecom cabinets, engine-bay electronics, or factory-floor enclosures where the temperature swings wide. ## Active lifecycle, no EOL concern It is RoHS compliant per the listing.","metaTitle":"TLP385(TPL,E Toshiba Optocoupler, 5000 Vrms, 4-Pin SOIC","metaDescription":"Toshiba TLP385(TPL,E transistor-output optocoupler, 5000 Vrms isolation, 50-600% CTR, 80 V output, -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)":"50% @ 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?","answer":"The CTR is specified at 5 mA forward current: 50% minimum and 600% maximum. That means at 5 mA LED current, the output transistor can sink between 2.5 mA and 30 mA."},{"question":"What are the replacement or equivalent parts for TLP385(TPL,E?","answer":"Toshiba offers CTR-binned variants in the same package: TLP385(GB-TPR,E and TLP385(GR-TPR,E have different CTR min/max windows but are otherwise identical in isolation, speed, and ratings. The TLP385(D4Y-TPL,E is another CTR-sorted version. All are pin-compatible and functionally equivalent — the choice depends on the CTR range your design needs."},{"question":"Is TLP385 RoHS compliant?","answer":"Yes, the TLP385(TPL,E is listed as RoHS compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TLP385TPLE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TLP385TPLE 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}}