{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLP385(D4GH-TL,E","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TLP385D4GH-TLE","canonicalUrl":"https://icboms.com/toshiba/TLP385D4GH-TLE","factsUrl":"https://icboms.com/api/mcp/products/TLP385(D4GH-TL%2CE","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba TLP385(D4GH-TL,E, single-channel transistor-output optocoupler, 5000Vrms isolation, 50% to 600% CTR at 5mA, 80V output max, -55°C to 110°C, 6-SOIC surface mount.","salesMarkdown":"## What this optocoupler brings to the board The Toshiba TLP385(D4GH-TL,E is a single-channel transistor-output optocoupler in a 6-SOIC package with 4 leads. It takes a DC input on the LED side and switches a phototransistor on the output, providing 5000Vrms of galvanic isolation between the two sides. The wide current transfer ratio — 50% to 600% at 5mA forward current — gives you headroom for LED aging and lets you drive logic inputs or small relays directly. Output can handle up to 80V and 50mA per channel, which covers most industrial signal isolation and low-power switching tasks. The -55°C to 110°C operating range means it works in outdoor telecom cabinets, motor-drive feedback, and engine-bay electronics without derating. ## CTR range — why it matters for the BOM The 50% minimum CTR at 5mA forward current is the number to design around. If you need to guarantee a logic-high into a 5V CMOS input with a 10kΩ pull-up, 50% CTR at 5mA gives you 2.5mA output drive — enough to pull the line low with margin. The 600% maximum means you can run the LED at lower current (say 1mA) and still get enough output current to switch a transistor, saving power in battery-operated designs. That wide spread also means you don't need to bin parts for tight CTR windows — the same order code covers both high-gain and low-gain applications. ## Package and footprint reality This is a 6-SOIC package with 4 leads — the extra two pins are unused or for creepage distance. The body is 4.40mm wide, so it fits the standard SOIC-6 footprint. Surface-mount only, no through-hole option. The 4-lead variant saves board space compared to a full 6-pin DIP, and the 5000Vrms isolation is achieved with internal optical path and mould compound, not external slots. If you're replacing a DIP-4 optocoupler in an existing design, check the pad layout — the 6-SOIC pitch is 1.27mm, same as SOIC-8, but the body width is narrower. ## Lifecycle and sourcing It's RoHS compliant, which is the baseline for new designs shipping into EU or California markets.","metaTitle":"TLP385(D4GH-TL,E Toshiba Optocoupler, 5000Vrms","metaDescription":"Toshiba TLP385(D4GH-TL,E single-channel transistor-output optocoupler with 5000Vrms isolation, 50-600% CTR at 5mA, -55 to 110°C.","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 CTR range for TLP385(D4GH-TL,E?","answer":"The current transfer ratio is 50% minimum to 600% maximum, both specified at 5mA forward current. That wide range covers both low-power and high-drive applications from the same part."},{"question":"Is TLP385(D4GH-TL,E suitable for 5V logic isolation?","answer":"Yes. With a 50% minimum CTR at 5mA, the output transistor can sink enough current to pull a 5V logic input low through a typical pull-up resistor. The 80V output rating also gives headroom for 12V or 24V industrial logic levels."},{"question":"What's the closest functional second-source for TLP385(D4GH-TL,E?","answer":"The TLP385(D4GR-TL,E is a pin-compatible variant in the same TLP385 family with identical DC input, transistor output, 5000Vrms isolation, and CTR range. For a dual-source strategy, either order code works as a drop-in replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TLP385D4GH-TLE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TLP385D4GH-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}}