{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMCJ43CAE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMCJ43CAE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMCJ43CAE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMCJ43CAE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMCJ43CAE3/TR13, bidirectional Zener TVS diode, DO-214AB (SMC) package, 1500 W peak pulse power, 43 V reverse standoff, 47.8 V min breakdown, 69.4 V clamping at 21.6 A.","salesMarkdown":"## Bidirectional TVS in DO-214AB – 1500 W peak pulse, 43 V rail The SMCJ43CAE3/TR13 is a bidirectional Zener TVS diode from Microchip, rated for 1500 W peak pulse power per the 10/1000 µs waveform. It clamps a 43 V nominal rail at 69.4 V maximum when the surge current hits 21.6 A. The minimum breakdown voltage of 47.8 V gives a guard band above the 43 V standoff, so the diode stays off during normal operation and only conducts during an overvoltage event. ## Clamping voltage and breakdown margin for 24 V and 43 V rails For a 24 V DC bus, the 43 V reverse standoff leaves headroom — the TVS will not clip normal 24 V transients. The 69.4 V clamping ceiling is well above a 24 V rail's typical surge, so the protected circuit sees a clamped spike, not the full transient. On a 43 V rail, the 47.8 V minimum breakdown ensures the diode triggers before the rail exceeds its absolute maximum rating. ## Active production – sourcing via RFQ Microchip lists the SMCJ43CAE3/TR13 as Active. ## DO-214AB footprint and temperature range The DO-214AB (SMC) package has a standard JEDEC footprint with a cathode tab that doubles as the thermal pad — the board copper area under the tab sets the junction-to-ambient thermal resistance.","metaTitle":"SMCJ43CAE3/TR13 TVS Diode – Microchip, 1.5 kW, 43 V Standoff","metaDescription":"SMCJ43CAE3/TR13 bidirectional Zener TVS from Microchip. 1500 W peak pulse, 47.8 V min breakdown, 69.4 V clamping. Active production. DO-214AB. Sourced per RFQ.","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Voltage - Breakdown (Min)":"47.8V","Voltage - Clamping (Max) @ Ipp":"69.4V","Voltage - Reverse Standoff (Typ)":"43V","Current - Peak Pulse (10/1000µs)":"21.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5850","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Can SMCJ43CAE3/TR13 be used for 24V systems?","answer":"Yes. The 43 V reverse standoff is well above 24 V nominal, so the TVS does not conduct during normal operation. The 69.4 V clamp limits transients to a safe level for downstream components rated for 24 V."},{"question":"How does SMCJ43CAE3/TR13 compare to SMCJ43A?","answer":"The SMCJ43A is the unidirectional version of the same base part. The SMCJ43CAE3/TR13 is bidirectional — it clamps both positive and negative surges with a single device, eliminating the need for a series diode in AC or bipolar applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMCJ43CAE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMCJ43CAE3-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}}