{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCMT1113","brand":"Vishay","brandSlug":"vishay","productSlug":"TCMT1113","canonicalUrl":"https://icboms.com/vishay/TCMT1113","factsUrl":"https://icboms.com/api/mcp/products/TCMT1113","rawCanonicalId":null},"summary":{"shortDescription":"Vishay TCMT1113 optoisolator, single-channel DC-input transistor output, 3750Vrms isolation, 4-SOIC surface-mount package, 100-200% CTR at 10mA, -40°C to 110°C operating range.","salesMarkdown":"The TCMT1113 is a single-channel phototransistor optocoupler from Vishay, built for galvanic isolation in industrial and power-conversion circuits. It provides 3750Vrms of isolation between input and output, which covers reinforced insulation requirements for many mains-referenced applications like motor drives, switched-mode power supplies, and PLC digital inputs. The input is a DC-driven infrared LED (1.15V forward voltage typical, 50mA max forward current), and the output is a phototransistor rated for up to 70V and 50mA continuous. The current transfer ratio is specified at 100% minimum and 200% maximum when the LED is driven at 10mA, giving a predictable gain window for logic-level interface design. The 4-SOIC package (4.40mm body width) is a standard optocoupler footprint, reworkable with hot air and easy to inspect. ## Switching speed and timing — what the numbers mean Rise and fall times are 3µs and 4µs typical; turn-on and turn-off times are 5µs and 3µs typical. This puts the TCMT1113 in the medium-speed class — fine for 10-100 kHz PWM feedback, status polling, and relay drivers, but not for high-speed data isolation above a few hundred kHz. For faster switching, you would look at a digital isolator or a high-speed optocoupler with a logic output. ## Package and mounting The 4-SOIC package has a 0.173-inch (4.40mm) body width and a 1.27mm lead pitch — standard for SOIC-4 optocouplers. The leads are gull-wing, easy to solder and inspect under a microscope. It will survive a hot-air rework cycle without trouble; just preheat the board to 100°C to avoid thermal shock to the internal die attach.","metaTitle":"TCMT1113 Optoisolator, 3750Vrms, Transistor Output, 4-SOIC","metaDescription":"TCMT1113 optocoupler: 3750Vrms isolation, transistor output, 100-200% CTR at 10mA, -40 to 110°C. 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":"Transistor","Mounting Type":"Surface Mount","Package / Case":"4-SOIC (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"3750Vrms","Vce Saturation (Max)":"300mV","Operating Temperature":"-40°C ~ 110°C","Rise / Fall Time (Typ)":"3µs, 4µs","Voltage - Output (Max)":"70V","Supplier Device Package":"4-SOP","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"200% @ 10mA","Current Transfer Ratio (Min)":"100% @ 10mA","Voltage - Forward (Vf) (Typ)":"1.15V","Turn On / Turn Off Time (Typ)":"5µs, 3µs","Current - DC Forward (If) (Max)":"50 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.76","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.76000","currency":"USD"},{"qty":10,"price":"$0.49800","currency":"USD"},{"qty":100,"price":"$0.32620","currency":"USD"},{"qty":1000,"price":"$0.25755","currency":"USD"},{"qty":3000,"price":"$0.24038","currency":"USD"},{"qty":6000,"price":"$0.23180","currency":"USD"},{"qty":15000,"price":"$0.22836","currency":"USD"},{"qty":30000,"price":"$0.22321","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0c529ce458d779a7c4d1a8f413c86dfb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can I use TCMT1113 for 3.3V or 5V applications?","answer":"Yes. With a 100% to 200% CTR at 10mA LED current, the TCMT1113 can be driven from 3.3V or 5V logic through a series resistor sized to deliver 10mA forward current."},{"question":"What is the CTR range of TCMT1113?","answer":"The current transfer ratio is specified at 100% minimum and 200% maximum, measured at an LED forward current of 10mA. This means the phototransistor collector current will be between 10mA and 20mA when the LED is driven at 10mA, giving a predictable gain window for designing the output pull-up or load resistor."},{"question":"Is TCMT1113 RoHS compliant?","answer":"Yes, the TCMT1113 is ROHS3 compliant, meaning it meets the EU RoHS directive without any of the exempted substances."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/TCMT1113","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/TCMT1113 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}}