{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ51E3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ51E3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ51E3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ51E3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ51E3/TR13, Zener TVS diode, 51V reverse standoff (typ), 500W peak pulse power (10/1000µs), unidirectional, DO-214AC (SMA) surface-mount package, Tape & Reel.","salesMarkdown":"## 51V rail clamp – 500W pulse rating Its 56.7V minimum breakdown voltage and 91.1V maximum clamping at 5.5A peak pulse current define the protection envelope for a 51V reverse standoff. ## Package and rework – DO-214AC (SMA) Housed in the DO-214AC (SMA) package, this diode uses the standard JEDEC footprint with a cathode tab that doubles as the thermal pad. The SMA body is small enough for dense layouts but large enough to hand-rework with a hot-air station — the tab wets well and the part self-centers on reflow. Rated for junction temperature from -65°C to 150°C, this diode survives cold storage and hot under-hood conditions. The wide range suits outdoor telecom cabinets, engine bay electronics, and any application where the ambient temperature swings beyond commercial limits. The suffix indicates RoHS compliance (lead-free termination). Sourced per RFQ; confirm current lead time and pricing at quote time.","metaTitle":"SMAJ51E3/TR13 Zener TVS Diode – 51V Standoff, 500W, DO-214AC","metaDescription":"SMAJ51E3/TR13 Zener TVS diode from Microchip Technology. 51V reverse standoff, 500W peak pulse power, DO-214AC (SMA) package. Active production, RoHS compliant.","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":"SMAJ51","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AC (SMA)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"56.7V","Voltage - Clamping (Max) @ Ipp":"91.1V","Voltage - Reverse Standoff (Typ)":"51V","Current - Peak Pulse (10/1000µs)":"5.5A"}},"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 SMAJ51E3/TR13 RoHS compliant?","answer":"Yes — the suffix in the order code denotes lead-free, RoHS-compliant termination. Microchip lists it as active with no RoHS exemption flags."},{"question":"What is the difference between SMAJ51E3 and SMAJ51?","answer":"The suffix indicates lead-free (RoHS-compliant) termination. The SMAJ51 (without) uses standard tin-lead plating. Electrical specs — 51V standoff, 500W peak pulse — are identical."},{"question":"Can I replace SMAJ51E3 with SMAJ51A?","answer":"The SMAJ51A is a bidirectional device; the SMAJ51E3 is unidirectional. They are not direct drop-in replacements unless the circuit is designed for bidirectional clamping. Confirm the polarity requirement before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ51E3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ51E3-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}}