{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLP385(D4-GRH,E","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TLP385D4-GRHE","canonicalUrl":"https://icboms.com/toshiba/TLP385D4-GRHE","factsUrl":"https://icboms.com/api/mcp/products/TLP385(D4-GRH%2CE","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba Semiconductor TLP385(D4-GRH,E, 1-channel DC-input transistor-output optocoupler, 5000Vrms isolation, 100-300% CTR at 5mA, 6-SOIC-4 package, tube.","salesMarkdown":"## Isolation and signal transfer in a 4-pin SOIC The TLP385(D4-GRH,E is a single-channel DC-input transistor-output optocoupler from Toshiba, delivering 5000Vrms galvanic isolation in a compact 6-SOIC with only 4 leads populated. That isolation rating covers reinforced insulation requirements for industrial drives, PLC digital inputs, and medical patient-interface barriers where a ground break is non-negotiable. Operating from -55°C to 110°C, it spans the full industrial temperature envelope plus a margin into cold-start environments like outdoor base stations or refrigeration controls. The 100% to 300% current transfer ratio at 5mA forward current gives the designer a wide loop-gain window to set the LED drive resistor without overdriving the input. ## Switching speed and output drive capability Rise and fall times are 2µs and 3µs typical, with symmetrical turn-on and turn-off times of 3µs each. This suits 10-100 kHz switching in isolated gate-drive feedback or low-speed serial isolation; for faster edges a logic-output optocoupler would be needed. The output transistor can sink 50mA continuous at up to 80V Vce, with a saturation voltage of 300mV max at rated current. That Vce(sat) floor keeps dissipation low in logic-level translation — a 5V pull-up at 5mA drops only 15mW in the output stage. ## Active production and package options The 6-SOIC-4 lead package uses a 0.173-inch body width (4.40mm) — the same footprint as a standard SOIC-8 but with only four pins populated. That means the PCB layout can share a common SOIC-8 land pattern, simplifying BOM consolidation across different channel-count optocouplers.","metaTitle":"TLP385(D4-GRH,E Toshiba 5000Vrms Transistor Output","metaDescription":"TLP385(D4-GRH,E Toshiba optoisolator, 1-channel DC input transistor output, 5000Vrms isolation, 100-300% CTR, -55°C to 110°C, 6-SOIC-4. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tube","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":2000,"price":"$0.16362","currency":"USD"},{"qty":5000,"price":"$0.15271","currency":"USD"},{"qty":10000,"price":"$0.14726","currency":"USD"},{"qty":25000,"price":"$0.14508","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/331d269fb9551bcaaac5f6b0e0ad3456.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional alternative to the TLP385(D4-GRH,E?","answer":"Within the same TLP385 family, the TLP385(D4-GRL,E has identical electrical ratings — 5000Vrms isolation, 100-300% CTR, 80V Vce max — but differs only in CTR binning or packaging suffix. Both are DC-input transistor-output optocouplers in 6-SOIC-4. The TLP385(D4-BL,E is another sibling with the same parametric profile. All three are direct cross-shoppable for BOM fit, provided the CTR bin matches the application's LED drive margin."},{"question":"What does the 5000Vrms isolation rating mean for my design?","answer":"The 5000Vrms rating is the dielectric withstand voltage between input and output for 1 minute per safety standards. In practice, that covers reinforced insulation for 250Vrms working voltage systems (IEC 60950-1 / IEC 62368-1). The creepage distance across the 6-SOIC package body is typically 8mm minimum, which meets the 8mm clearance required for reinforced insulation in mains-connected equipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TLP385D4-GRHE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TLP385D4-GRHE 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}}