{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ48AE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMBJ48AE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMBJ48AE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMBJ48AE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMBJ48AE3/TR13, Zener TVS, 600W peak pulse power, 48V reverse standoff, 53.3V min breakdown, 77.4V clamping, DO-214AA SMB package, -65°C to 150°C junction temperature, unidirectional, tape & reel.","salesMarkdown":"## Zener TVS for 48 V rails — clamping at 77.4 V The SMBJ48AE3/TR13 is a Microchip Technology Zener-type transient voltage suppressor designed to protect a 48 V nominal rail. Its minimum breakdown voltage of 53.3 V sits comfortably above the 48 V standoff, so the part stays transparent during normal operation and only conducts when a surge pushes the line past the avalanche threshold. Rated for 600 W peak pulse power per the 10/1000 µs waveform, it clamps at 77.4 V maximum while passing 7.7 A peak pulse current. That clamping voltage is the survival ceiling for the downstream regulator or load — if the load's absolute maximum is below 77.4 V, you need a lower-clamp TVS or a secondary protection stage. ## Package and rework — DO-214AA (SMB) The package body is marked with a cathode band; orientation is unambiguous under a loupe. Pad layout follows the standard SMB footprint, so it drops onto existing boards without a layout change. The wide Tj window also means the part can absorb repetitive low-energy surges in a hot environment without shifting its breakdown voltage over time.","metaTitle":"SMBJ48AE3/TR13 – Microchip 600W Zener TVS, DO-214AA","metaDescription":"Microchip Technology SMBJ48AE3/TR13: Zener TVS, 600W peak pulse, 48V reverse standoff, 53.3V min breakdown, 77.4V clamping. DO-214AA SMB package, -65°C to","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-214AA, SMB","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SMBJ48","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMBJ (DO-214AA)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"53.3V","Voltage - Clamping (Max) @ Ipp":"77.4V","Voltage - Reverse Standoff (Typ)":"48V","Current - Peak Pulse (10/1000µs)":"7.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f566c62ad8bf6be9ecf452f6999d0b7a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can SMBJ48AE3/TR13 replace SMBJ48A?","answer":"The SMBJ48AE3/TR13 is functionally equivalent to the SMBJ48A — same breakdown, same clamping, same package. The suffix indicates Microchip's lead-free / RoHS-compliant finish, and the TR13 suffix specifies tape-and-reel packaging. If your BOM calls for SMBJ48A in bulk tube or a different finish, confirm the reel quantity and plating match your assembly process."},{"question":"Is SMBJ48AE3/TR13 unidirectional or bidirectional?","answer":"It is a unidirectional (single-channel) Zener TVS. The cathode band on the DO-214AA package marks the anode side; the device conducts only on positive surges above the breakdown voltage. For bidirectional protection on an AC line or a bipolar rail, you would need two back-to-back unidirectional parts or a dedicated bidirectional TVS."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMBJ48AE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMBJ48AE3-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}}