{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMCJ43E3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMCJ43E3-TR13","canonicalUrl":"https://icboms.com/microchip/SMCJ43E3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMCJ43E3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMCJ43E3/TR13, Zener TVS diode, 43V reverse standoff, 47.8V min breakdown, 76.7V clamping, 1500W peak pulse power, DO-214AB SMC package, Tape & Reel","salesMarkdown":"## TVS selection: 43V rail, 1.5kW pulse, DO-214AB Its reverse standoff voltage of 43V and minimum breakdown voltage of 47.8V ensure it stays transparent during normal operation but triggers before the rail exceeds safe limits. With a peak pulse power rating of 1500W (1.5kW) per the 10/1000µs waveform and a clamping voltage of 76.7V at 19.6A peak pulse current, this part absorbs substantial surge energy while limiting the let-through voltage to levels typical for 48V telecom or 36V industrial bus protection. ## Breakdown and clamping margin The 4.8V gap between the 43V standoff and the 47.8V minimum breakdown provides margin for DC rail ripple and tolerance without false triggering. The 76.7V maximum clamping at 19.6A defines the upper voltage stress the downstream components must survive — a figure to compare against the absolute maximum ratings of your powered ICs.","metaTitle":"SMCJ43E3/TR13 TVS Diode – 43V Standoff, 1500W Peak Pulse","metaDescription":"SMCJ43E3/TR13 Microchip Zener TVS: 43V reverse standoff, 47.8V min breakdown, 76.7V clamping, 1500W peak pulse.","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":"SMCJ43","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)":"47.8V","Voltage - Clamping (Max) @ Ipp":"76.7V","Voltage - Reverse Standoff (Typ)":"43V","Current - Peak Pulse (10/1000µs)":"19.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5550","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Is SMCJ43E3/TR13 unidirectional or bidirectional?","answer":"It is a unidirectional TVS with one channel, designed for DC rail protection where the cathode is tied to the positive rail and the anode to ground."},{"question":"Does SMCJ43E3/TR13 come in tape and reel packaging?","answer":"Yes, the TR13 suffix indicates Tape & Reel packaging, suitable for automated SMT assembly. The package is DO-214AB (SMC)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMCJ43E3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMCJ43E3-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}}