{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLP385(E","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TLP385E","canonicalUrl":"https://icboms.com/toshiba/TLP385E","factsUrl":"https://icboms.com/api/mcp/products/TLP385(E","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba TLP385(E, single-channel transistor-output optocoupler, DC input, 5000 Vrms isolation, 4-lead SO-6 package (0.173\", 4.40 mm width), 50-600% CTR at 5 mA, -55°C to 110°C, RoHS.","salesMarkdown":"## Isolation voltage and CTR range for BOM-fit The TLP385(E delivers 5000 Vrms isolation in a 4-lead SO-6 package — a reinforced-grade rating that meets IEC 60950-1 and IEC 62368-1 clearance requirements for mains-isolated power supplies and PLC digital inputs. Current transfer ratio spans 50% to 600% at 5 mA forward current, a 12:1 spread that forces the designer to verify worst-case output current at the minimum CTR corner, especially when driving a logic gate or a low-power relay. ## Switching speed and output drive Rise and fall times are 2 µs and 3 µs typical, with turn-on and turn-off both at 3 µs typical — fast enough for 100 kHz isolated data links or IGBT gate-drive fault feedback, but not for high-speed digital isolation above 1 Mbps. Output transistor is rated for 80 V collector-emitter and 50 mA continuous current, with a 300 mV max saturation voltage at the rated forward current — adequate for driving a 5 V or 24 V PLC input stage without an external buffer. ## Temperature range and production status Operating temperature from -55°C to 110°C covers industrial and outdoor telecom enclosures where ambient can reach 85°C with self-heating margin; the 110°C ceiling is above the typical 105°C limit of many standard optocouplers. Sourced per RFQ against your BOM quantity; confirm the 4-lead SO-6 footprint matches your PCB layout before committing.","metaTitle":"TLP385(E Toshiba Optocoupler – 5000 Vrms, 4-Pin SO-6","metaDescription":"Toshiba TLP385(E transistor-output optocoupler: 5000 Vrms isolation, 50-600% CTR at 5 mA, -55°C to 110°C, 4-lead SO-6 package. Active, RoHS.","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)":"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":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 current transfer ratio (CTR) range for TLP385(E)?","answer":"The CTR is specified at 5 mA forward current: minimum 50%, maximum 600%. That 12:1 spread means the design must tolerate a weak output at low CTR or add a pull-up resistor to guarantee the logic threshold."},{"question":"Can TLP385(E be used as a replacement for TLP385?","answer":"Yes — the TLP385(E is a CTR-grade variant within the same TLP385 family. The (E suffix indicates a standard CTR bin (50-600%). It is pin-compatible and electrically identical to the base TLP385 part. The same applies to the (Y, (YH, and (GB suffixes, which have different CTR ranges."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TLP385E","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TLP385E 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}}