{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMCJ45AE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMCJ45AE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMCJ45AE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMCJ45AE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMCJ45AE3/TR13, Zener TVS diode, 1500W peak pulse power, 45V reverse standoff, unidirectional, DO-214AB (SMC) surface mount package on tape and reel.","salesMarkdown":"## Transient suppressor for 45V rails – 1500W peak pulse Its 1500W peak pulse power rating (10/1000 µs waveform) means it can absorb a 20.6A surge before the clamping voltage hits 72.7V — enough to protect a 48V telecom supply or a 36V battery line from inductive kickback or lightning-coupled spikes. ## Breakdown margin and clamping ceiling The minimum breakdown voltage is 50V, giving a 5V guard band above the 45V reverse standoff — the diode stays off during normal operation and only conducts when the transient exceeds that threshold. The 72.7V clamp at 20.6A is the ceiling the protected circuit must survive; if the downstream DC-DC converter's input FET is rated for 80V, this TVS keeps it inside the safe operating area. Microchip lists the SMCJ45AE3/TR13 as Active. ## Thermal and environmental reach The DO-214AB body with surface-mount termination suits reflow assembly; the tape-and-reel delivery aligns with high-volume pick-and-place. No power line protection rating — this is a signal-rail or low-power bus protector, not a mains-side suppressor.","metaTitle":"SMCJ45AE3/TR13 TVS Diode – Microchip, 1500W, 45V Standoff","metaDescription":"Microchip SMCJ45AE3/TR13 Zener TVS diode: 1500W peak pulse, 45V reverse standoff, 72.7V clamp at 20.6A. Active production, DO-214AB SMC package.","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":"SMCJ45","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)":"50V","Voltage - Clamping (Max) @ Ipp":"72.7V","Voltage - Reverse Standoff (Typ)":"45V","Current - Peak Pulse (10/1000µs)":"20.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5550","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to SMCJ45AE3/TR13 in this Circuit Protection family?","answer":"The base product number SMCJ45 covers the same 45V standoff, 1500W rating, and DO-214AB footprint. Any SMCJ45 variant from Microchip or a second-source supplier with the same breakdown and clamp specs is a direct drop-in. Confirm the unidirectional polarity and the - suffix (tin-lead termination) if the BOM specifies leaded solder."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMCJ45AE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMCJ45AE3-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}}