{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ28CAE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ28CAE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ28CAE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ28CAE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ28CAE3/TR13, bidirectional Zener TVS diode, 28V reverse standoff, 500W peak pulse power (10/1000µs), DO-214AC (SMA) surface-mount package, -65°C to 150°C junction temperature range.","salesMarkdown":"## 28V bidirectional TVS in DO-214AC — selection anchor Its 28V reverse standoff voltage means a 28V DC rail or a 28V peak AC signal rides below the leakage threshold; the device stays off until the transient exceeds the 31.1V minimum breakdown voltage. The 45.4V maximum clamping voltage at 11A peak pulse current gives the protected IC a hard voltage ceiling — useful for downstream components rated to 50V or less. ## Temperature range and mounting — field-fit check Microchip lists the product status as Active, meaning no end-of-life notice is in effect. ## Sourcing and procurement posture As an active Microchip Technology line, the SMAJ28CAE3/TR13 is sourced to order against BOM quantities. The '' suffix indicates lead-free / RoHS-compliant finish, which is the standard for current production.","metaTitle":"SMAJ28CAE3/TR13 TVS Diode – 28V Bidirectional, DO-214AC","metaDescription":"Microchip Technology SMAJ28CAE3/TR13 bidirectional Zener TVS, 28V reverse standoff, 500W peak pulse, DO-214AC. Active production.","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":"SMAJ28","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)":"31.1V","Voltage - Clamping (Max) @ Ipp":"45.4V","Voltage - Reverse Standoff (Typ)":"28V","Current - Peak Pulse (10/1000µs)":"11A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7b3ddece4863b4621debe180df56adc8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SMAJ28CAE3/TR13 a bidirectional TVS diode?","answer":"Yes — it is a single-channel bidirectional Zener TVS. It clamps transients of either polarity, making it suitable for AC signal lines, bipolar supplies, or any rail where the voltage swings through zero."},{"question":"What is the difference between SMAJ28CAE3/TR13 and SMAJ28A?","answer":"The SMAJ28A is a unidirectional TVS — it clamps only one polarity and conducts like a forward-biased diode in the other direction. The SMAJ28CAE3/TR13 is bidirectional, clamping both polarities symmetrically. For AC-coupled lines or bipolar supplies, the bidirectional version is the correct choice."},{"question":"Can SMAJ28CAE3/TR13 be replaced by SMAJ28CA?","answer":"The SMAJ28CA is the same bidirectional TVS in the same DO-214AC package, but the '' suffix on the SMAJ28CAE3/TR13 indicates a lead-free / RoHS-compliant finish. If your BOM requires RoHS compliance, the '' variant is the correct fit. Electrically and mechanically they are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ28CAE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ28CAE3-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}}