{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLP268J(TPR,E","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TLP268JTPRE","canonicalUrl":"https://icboms.com/toshiba/TLP268JTPRE","factsUrl":"https://icboms.com/api/mcp/products/TLP268J(TPR%2CE","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba TLP268J(TPR,E triac output photocoupler, 600 V off-state, 3750 Vrms isolation, zero-crossing circuit, 100 µs turn-on, 6-SOP surface-mount package, -40°C to 100°C.","salesMarkdown":"## Triac coupler for isolated AC switching The Toshiba TLP268J(TPR,E is a single-channel triac output photocoupler in a 6-SOP surface-mount package. It combines a GaAs infrared LED on the input side with a photo-triac output that includes a zero-crossing detection circuit. The part is rated for 600 V off-state voltage and 3750 Vrms isolation, making it suited for switching 100–240 VAC loads in industrial controls, solid-state relays, and motor starters where galvanic isolation between the logic and power domain is required. The zero-crossing circuit ensures the triac only turns on when the AC mains voltage crosses zero, which minimizes inrush current and reduces EMI generated by the switching event. This is the feature to look for when driving inductive loads like solenoids, contactors, or small motors — it avoids the current spike that would occur if the triac fired mid-cycle. The turn-on time is 100 µs, fast enough to synchronise with the zero-crossing window at 50/60 Hz line frequencies. If your application requires phase-angle control (dimming, soft-start), you need the non-zero-crossing variant TLP267J(TPL,E instead. ## Trigger current and hold current — sizing the drive and load The typical hold current (Ih) is 200 µA. This is the minimum load current that keeps the triac latched once triggered. For very light loads (e.g., a 5 W LED lamp on 230 VAC, drawing ~22 mA), the hold current is easily satisfied. But if the load is a high-impedance relay coil or a small fan that draws under 200 µA, the triac may drop out at the next zero crossing. In that case, add a dummy load resistor across the output to raise the current above Ih. ## Isolation and safety approvals With 3750 Vrms isolation and approvals from CQC, cUR, and UR, this coupler meets the basic insulation requirements for reinforced isolation in mains-connected equipment. The off-state voltage of 600 V gives derating margin for 240 VAC lines (peak ~340 V) and covers 277 VAC lighting circuits. The 6-SOP package has a 4.40 mm body width and 0.173\" lead pitch — a compact footprint for high-density PCB layouts.","metaTitle":"TLP268J(TPR,E Triac Coupler, 600V Off-State, 3750Vrms","metaDescription":"Toshiba TLP268J(TPR,E triac output photocoupler in 6-SOP. 600 V off-state, 3750 Vrms isolation, zero-crossing circuit, 100 µs turn-on. 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)","Output Type":"Triac","Turn On Time":"100µs","Mounting Type":"Surface Mount","Package / Case":"6-SOIC (0.173\\\", 4.40mm Width), 4 Leads","Approval Agency":"CQC, cUR, UR","lifecycle_stage":"eol_hot","Number of Channels":"1","Static dV/dt (Min)":"500V/µs (Typ)","Current - Hold (Ih)":"200µA (Typ)","Voltage - Isolation":"3750Vrms","Voltage - Off State":"600 V","Operating Temperature":"-40°C ~ 100°C","Zero Crossing Circuit":"Yes","Supplier Device Package":"6-SOP","Voltage - Forward (Vf) (Typ)":"1.27V","Current - DC Forward (If) (Max)":"30 mA","Current - LED Trigger (Ift) (Max)":"3mA","Current - On State (It (RMS)) (Max)":"70 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.99","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.99000","currency":"USD"},{"qty":10,"price":"$0.64400","currency":"USD"},{"qty":100,"price":"$0.42220","currency":"USD"},{"qty":1000,"price":"$0.33330","currency":"USD"},{"qty":3000,"price":"$0.31108","currency":"USD"},{"qty":6000,"price":"$0.29997","currency":"USD"},{"qty":15000,"price":"$0.29553","currency":"USD"},{"qty":30000,"price":"$0.28886","currency":"USD"}]},"links":{"datasheetUrl":"https://toshiba.semicon-storage.com/info/TLP268J_datasheet_en_20200217.pdf?did=14464&prodName=TLP268J","sourceUrl":null},"ai":{"faq":[{"question":"Is TLP268J zero-crossing?","answer":"Yes, the TLP268J includes a zero-crossing detection circuit. The triac only turns on when the AC mains voltage is near zero, reducing inrush current and EMI."},{"question":"What is the typical hold current of TLP268J?","answer":"This is the minimum load current needed to keep the triac conducting once triggered."},{"question":"What are the closest equivalents or cross references for TLP268J(TPR,E?","answer":"The TLP268J(T2-TPL,E is the same die and package but supplied in a different tape-and-reel format (Digi-Reel compatible). The TLP267J(TPL,E is the non-zero-crossing variant — same isolation and voltage ratings, but without the zero-crossing circuit, suited for phase-control applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TLP268JTPRE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TLP268JTPRE 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}}