{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLP385(GR-TPL,E","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TLP385GR-TPLE","canonicalUrl":"https://icboms.com/toshiba/TLP385GR-TPLE","factsUrl":"https://icboms.com/api/mcp/products/TLP385(GR-TPL%2CE","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba Semiconductor TLP385(GR-TPL,E, single-channel DC-input transistor-output optocoupler, 5000Vrms isolation, 100-300% current transfer ratio at 5 mA, surface-mount 6-SOIC 4-lead package.","salesMarkdown":"The TLP385(GR-TPL,E is a single-channel transistor-output optocoupler from Toshiba, built for galvanic isolation up to 5000 Vrms between a DC input and a phototransistor output. The 4-lead 6-SOIC package (0.173-inch body width, 4.40 mm height) saves board space compared to the traditional DIP-4 footprint while keeping creepage distance adequate for reinforced isolation in mains-referenced circuits. It is rated for -55°C to 110°C operating temperature, so it handles outdoor telecom cabinets, industrial motor-drive feedback, and power-supply secondary-side regulation where the ambient can push past 85°C. ## Current transfer ratio – the BOM-sizing number The GR rank guarantees a current transfer ratio between 100% and 300% at If=5 mA. This means with 5 mA through the LED, the phototransistor can sink at least 5 mA at the output, and at most 15 mA. The 100% minimum ensures the output saturates with a modest LED drive, keeping the series resistor value low and the input power budget under control. For 3.3V logic interfaces, the 1.25 V typical forward voltage leaves enough headroom to bias the LED through a 330–470 Ω resistor from a 3.3 V rail, and the 2 µs rise / 3 µs fall times are fast enough for 100 kHz switching supplies or general-purpose signal isolation.","metaTitle":"TLP385(GR-TPL,E Optocoupler – Toshiba, 5000Vrms, SO-4","metaDescription":"Toshiba TLP385(GR-TPL,E transistor-output optocoupler, 5000Vrms isolation, 100-300% CTR at 5mA, -55°C to 110°C, 6-SOIC 4-lead.","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)":"300% @ 5mA","Current Transfer Ratio (Min)":"100% @ 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":"Does TLP385 work with 3.3V logic?","answer":"Yes. The typical forward voltage is 1.25 V, so a 3.3 V logic output can drive the LED through a current-limiting resistor. The 100% minimum CTR at 5 mA If ensures the phototransistor saturates with a 5 mA load, which is compatible with 3.3 V CMOS inputs that typically sink under 1 mA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TLP385GR-TPLE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TLP385GR-TPLE 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}}