{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLP387(TPR,E","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TLP387TPRE","canonicalUrl":"https://icboms.com/toshiba/TLP387TPRE","factsUrl":"https://icboms.com/api/mcp/products/TLP387(TPR%2CE","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba TLP387(TPR,E DC-input Darlington optocoupler, 5000Vrms isolation, 300V output max, 150mA per channel, 1000% CTR min at 1mA, 6-SOIC-4 surface-mount package, -55°C to 110°C.","salesMarkdown":"## High-voltage Darlington optocoupler for industrial isolation The Toshiba TLP387(TPR,E is a single-channel DC-input Darlington-output optocoupler rated for 5000Vrms isolation, making it a fit for galvanic isolation barriers in motor drives, industrial PLCs, and medical power supplies where the primary and secondary sides must be electrically separated. The Darlington output gives a minimum current transfer ratio of 1000% at 1 mA forward current, so the LED drive current can be kept low — useful when the primary-side controller has limited drive capability or you want to minimise power draw across the isolation boundary. Output can switch up to 300V and sink 150 mA continuously, enough to drive a small relay, a DC solenoid, or a logic-level input directly without a buffer transistor. ## Switching speed and timing budget Turn-on time is 50 µs typical, turn-off 15 µs typical, with rise and fall times of 40 µs and 15 µs respectively. ## Package, footprint, and storage notes Housed in a 6-SOIC package with 4 leads (0.173\" body width, 4.40 mm body height) — the standard small-outline footprint for medium-power optocouplers. The 4-lead pinout is the same as many Toshiba and competitor Darlington optocouplers in this package class, so a layout done for a TLP388 or similar will accept the TLP387 with no board change. The part is surface-mount only. ## Temperature range and environment The 110°C ceiling is below the 125°C typical of automotive-grade parts, so for under-hood or high-temperature industrial applications verify the junction temperature stays within the limit at full load. The 5000Vrms isolation rating is a reinforced isolation level per IEC 60747-5-5, suitable for medical (MOPP) and industrial (basic/reinforced) isolation barriers. ## Lifecycle and compliance The ROHS3 status means it is fully compliant with the latest EU RoHS directive, including all phthalate restrictions.","metaTitle":"TLP387(TPR,E Toshiba Optocoupler, Darlington Output","metaDescription":"Toshiba TLP387(TPR,E DC-input Darlington optocoupler, 5000Vrms isolation, 300V output, 150mA/ch, 1000% CTR min. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Input Type":"DC","Output Type":"Darlington","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)":"1V","Operating Temperature":"-55°C ~ 110°C","Rise / Fall Time (Typ)":"40µs, 15µs","Voltage - Output (Max)":"300V","Supplier Device Package":"6-SO, 4 Lead","Current - Output / Channel":"150mA","Current Transfer Ratio (Min)":"1000% @ 1mA","Voltage - Forward (Vf) (Typ)":"1.25V","Turn On / Turn Off Time (Typ)":"50µs, 15µs","Current - DC Forward (If) (Max)":"50 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.85","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.85000","currency":"USD"},{"qty":10,"price":"$0.55400","currency":"USD"},{"qty":100,"price":"$0.36270","currency":"USD"},{"qty":1000,"price":"$0.28634","currency":"USD"},{"qty":3000,"price":"$0.26725","currency":"USD"},{"qty":6000,"price":"$0.25770","currency":"USD"},{"qty":15000,"price":"$0.25388","currency":"USD"},{"qty":30000,"price":"$0.24816","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/524a7fec82c5385c167b9a8bd2ee7f38.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is TLP387(TPR,E RoHS compliant?","answer":"Yes, the TLP387(TPR,E is ROHS3 Compliant, covering all current RoHS substance restrictions including phthalates."},{"question":"Can TLP387(TPR,E replace a TLP385 or similar optocoupler?","answer":"The TLP387 is a Darlington-output optocoupler with a minimum CTR of 1000%, while the TLP385 is a phototransistor-output part with a much lower CTR (typically 50–600%). They are not direct drop-in replacements — the Darlington output has higher saturation voltage (1V max vs ~0.4V for a phototransistor) and slower switching speed. Check the pinout and load requirements before substituting. The TLP388 is a closer sibling within the same Darlington family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TLP387TPRE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TLP387TPRE 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}}