{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ43CAE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ43CAE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ43CAE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ43CAE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ43CAE3/TR13, Zener TVS diode, bidirectional, 43V reverse standoff, 47.8V min breakdown, 69.4V clamp, 500W peak pulse power, DO-214AC (SMA) package, Tape & Reel.","salesMarkdown":"## 43V rail protection – breakdown and clamp voltages Its reverse standoff voltage is 43V, meaning the device does not conduct appreciably below that level. The minimum breakdown voltage is 47.8V, guaranteeing the avalanche starts before the rail sees a transient above that threshold. ## 500W peak pulse – surge capability in DO-214AC Rated for 500W peak pulse power with a 10/1000 µs waveform, the device handles 7.2A peak pulse current. The DO-214AC (SMA) package is a common surface-mount footprint; the junction temperature range spans -65°C to 150°C, covering automotive under-hood and industrial environments. ## Active production – no obsolescence watch needed","metaTitle":"SMAJ43CAE3/TR13 TVS Diode – 43V Standoff, 500W","metaDescription":"Microchip Technology SMAJ43CAE3/TR13 Zener TVS: 43V reverse standoff, 47.8V min breakdown, 69.4V clamp, 500W peak pulse, bidirectional, DO-214AC.","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-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"500W","Base Product Number":"SMAJ43","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AC (SMA)","Voltage - Breakdown (Min)":"47.8V","Voltage - Clamping (Max) @ Ipp":"69.4V","Voltage - Reverse Standoff (Typ)":"43V","Current - Peak Pulse (10/1000µs)":"7.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7b3ddece4863b4621debe180df56adc8.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMAJ43CAE3%2FTR13/alternatives.json"},"ai":{"faq":[{"question":"Is SMAJ43CAE3/TR13 bidirectional?","answer":"Yes, it is a single bidirectional channel, protecting both positive and negative transients on the same line."},{"question":"What is the power rating of SMAJ43CAE3/TR13?","answer":"Peak pulse power is 500W for a 10/1000 µs waveform, with a corresponding peak pulse current of 7.2A."},{"question":"What is the closest pin-compatible alternative to SMAJ43CAE3/TR13 in this Circuit Protection family?","answer":"Within the SMAJ series, the unidirectional version (SMAJ43A) shares the same DO-214AC footprint and 43V standoff, but protects only one polarity. For a bidirectional replacement, any SMAJ43CA from Microchip or a qualified second-source with matching 43V standoff and 500W rating is a direct fit. Confirm the breakdown and clamp voltage tolerances against your design margin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ43CAE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ43CAE3-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}}