{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMCJ78E3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMCJ78E3-TR13","canonicalUrl":"https://icboms.com/microchip/SMCJ78E3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMCJ78E3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMCJ78E3/TR13, Zener-type TVS diode, 78V reverse standoff voltage, 139V clamping at 10.8A, 1500W peak pulse power, DO-214AB (SMC) surface-mount package, Tape & Reel","salesMarkdown":"## Zener TVS for 78V rail protection It delivers 1500W peak pulse power per the 10/1000µs waveform, with a breakdown voltage minimum of 86.7V and a clamping ceiling of 139V at 10.8A peak pulse current. This is a unidirectional device — one channel, cathode banded — intended for DC rail clamping where the protected line stays above ground. The DO-214AB (SMC) package suits reflow assembly and handles the 1500W pulse without exceeding the -65°C to 150°C junction temperature range. ## Clamping voltage and pulse current budget At 139V clamping maximum, the SMCJ78E3/TR13 leaves margin for a 100V-rated downstream capacitor or regulator on a 78V bus. The 10.8A peak pulse current (10/1000µs) sets the energy-handling floor — a 1500W pulse at 139V draws 10.8A, and the device must absorb that without latch or failure. No power line protection rating means this part is not rated for continuous AC mains clamping; it is a DC rail transient suppressor. The Zener breakdown characteristic gives a sharper knee than an MOV, which matters when the protected circuit has a tight overvoltage threshold. ## Active production and Tape & Reel supply The DO-214AB (SMC) package is a common footprint; confirm the pad layout matches your assembly profile before committing.","metaTitle":"SMCJ78E3/TR13 Zener TVS Diode 1500W 78V DO-214AB Microchip","metaDescription":"SMCJ78E3/TR13 Zener-type TVS diode, 78V reverse standoff, 139V clamping, 1500W peak pulse power. DO-214AB (SMC) surface mount. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Microchip Technology","Type":"Zener","Series":"-","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"SMCJ78","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"86.7V","Voltage - Clamping (Max) @ Ipp":"139V","Voltage - Reverse Standoff (Typ)":"78V","Current - Peak Pulse (10/1000µs)":"10.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5550","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between SMCJ78E3/TR13 and SMCJ78/TR13?","answer":"The / suffix typically indicates a lead-free / RoHS-compliant plating finish versus a standard tin-lead finish on the base SMCJ78/TR13. Confirm the exact finish code with Microchip's official documentation; the electrical specs (78V standoff, 139V clamp, 1500W peak) are shared across the SMCJ78 family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMCJ78E3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMCJ78E3-TR13 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}