{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ20CAE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ20CAE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ20CAE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ20CAE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ20CAE3/TR13, bidirectional Zener TVS diode, 500W peak pulse power, 20V reverse standoff, 22.2V min breakdown, 32.4V clamping, DO-214AC (SMA) package, Tape & Reel.","salesMarkdown":"The SMAJ20CAE3/TR13: The clamping voltage at the 15.4A peak pulse current is 32.4V, which sets the upper limit the protected circuitry must survive. ## Breakdown and clamping — where the guard band lives The 20V reverse standoff means this diode will not conduct appreciably below that rail voltage; leakage stays low. The 22.2V minimum breakdown gives a 2.2V margin before the device starts clamping — enough to absorb normal ripple on a 20V supply without wearing the junction. At the 15.4A peak pulse current the clamp hits 32.4V maximum. That 12.4V above the standoff is the dynamic resistance of the Zener structure; a downstream DC-DC converter or linear regulator must have an input rating above 32.4V or be protected by a second stage. Power line protection is not provided — this is a signal- or low-power-rail device. The single bidirectional channel clamps both polarities, which is useful on AC-coupled data lines or bipolar supplies where a unidirectional part would need two devices back-to-back.","metaTitle":"SMAJ20CAE3/TR13 TVS Diode – 500W, 20V, Bidirectional","metaDescription":"SMAJ20CAE3/TR13 bidirectional Zener TVS, 500W peak pulse power, 20V reverse standoff, DO-214AC package. Active production, Microchip Technology.","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":"SMAJ20","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)":"22.2V","Voltage - Clamping (Max) @ Ipp":"32.4V","Voltage - Reverse Standoff (Typ)":"20V","Current - Peak Pulse (10/1000µs)":"15.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7b3ddece4863b4621debe180df56adc8.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ20CAE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ20CAE3-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}}