{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMCJ51CAE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMCJ51CAE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMCJ51CAE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMCJ51CAE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMCJ51CAE3/TR13, Zener TVS Diode, Bidirectional, 1500W Peak Pulse Power, 51V Reverse Standoff, 82.4V Clamping, DO-214AB SMC Package, Tape & Reel","salesMarkdown":"## 1.5kW bidirectional Zener TVS in DO-214AB SMC The SMCJ51CAE3/TR13 is a bidirectional Zener TVS diode from Microchip Technology, rated for 1500W peak pulse power (10/1000µs waveform). It protects a 51V nominal rail, with a breakdown voltage minimum of 56.7V and a clamping ceiling of 82.4V at the rated peak pulse current of 18.2A. ## Voltage ratings and clamping margin The 56.7V minimum breakdown gives a 5.7V guard band before the diode starts to avalanche. The 82.4V clamping voltage is the peak voltage the downstream circuitry sees during a surge — design the 51V rail's downstream components to survive at least this level. At 18.2A peak pulse current, the diode shunts the surge energy while keeping the voltage clamped. The 1500W rating is the product of clamp voltage and peak current — a standard benchmark for comparing TVS diodes in the same package class. This removes the lifecycle risk for new designs and long-running BOMs. The base product number SMCJ51 is shared across the family; the 'CA' suffix denotes bidirectional, and '' indicates RoHS compliance. General-purpose application classification means it suits a wide range of overvoltage protection scenarios: I/O lines, DC power buses, telecom interfaces, and sensor inputs.","metaTitle":"SMCJ51CAE3/TR13 Microchip 1.5kW Zener TVS Diode DO-214AB","metaDescription":"SMCJ51CAE3/TR13 Microchip Technology Zener TVS diode, 1500W peak pulse power, 51V standoff, bidirectional, DO-214AB SMC package, -65°C to 150°C.","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":"SMCJ51","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Voltage - Breakdown (Min)":"56.7V","Voltage - Clamping (Max) @ Ipp":"82.4V","Voltage - Reverse Standoff (Typ)":"51V","Current - Peak Pulse (10/1000µs)":"18.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5850","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Is SMCJ51CAE3/TR13 RoHS compliant?","answer":"Yes, the '' suffix in the order code indicates RoHS compliance per Microchip's designation."},{"question":"What is the difference between SMCJ51CAE3/TR13 and SMCJ51A?","answer":"SMCJ51CAE3/TR13 is a bidirectional TVS, while SMCJ51A is unidirectional. The bidirectional version clamps both positive and negative surges symmetrically, making it suitable for AC lines or bipolar signal rails. The unidirectional version has a lower clamping voltage for one polarity and is typically used on DC rails."},{"question":"What package type is SMCJ51CAE3/TR13?","answer":"It comes in a DO-214AB (SMC) surface-mount package, supplied on Tape & Reel. The SMC footprint is shared with many 1.5kW TVS diodes from other manufacturers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMCJ51CAE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMCJ51CAE3-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}}