{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ40AE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ40AE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ40AE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ40AE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ40AE3/TR13, Zener TVS, unidirectional, 40 V reverse standoff, 500 W peak pulse power (10/1000 µs), DO-214AC (SMA) package, Tape & Reel.","salesMarkdown":"## What this TVS protects and where it clamps Reverse standoff is 40 V, so it sits across the line without conducting during normal operation. When a surge hits, breakdown starts at 44.4 V min and the clamping voltage is held to 64.5 V max at the peak pulse current of 7.8 A. The 500 W peak pulse power rating applies to the standard waveform — enough for secondary protection on a 40 V DC bus or a single-phase AC line after a bridge rectifier. This is a unidirectional device, so it clamps only one polarity. For AC lines or bidirectional protection, you would need two parts back-to-back or a bidirectional TVS. ## Package and temperature range for the board Housed in a surface-mount package common for TVS diodes. Supplied on Tape & Reel — pick-and-place ready for volume assembly. Microchip lists this part as Active.","metaTitle":"SMAJ40AE3/TR13 TVS Diode – 40 V, 500 W, DO-214AC – Microchip","metaDescription":"SMAJ40AE3/TR13 Zener TVS, 40 V reverse standoff, 500 W peak pulse, unidirectional, DO-214AC. Active production. Sourced per RFQ.","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":"SMAJ40","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)":"44.4V","Voltage - Clamping (Max) @ Ipp":"64.5V","Voltage - Reverse Standoff (Typ)":"40V","Current - Peak Pulse (10/1000µs)":"7.8A"}},"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":"What is the peak pulse power of SMAJ40AE3/TR13?","answer":"500 W peak pulse power, measured with a 10/1000 µs waveform. That rating defines the surge energy the part can absorb — enough for secondary protection on a 40 V rail but not for direct lightning strike without additional series impedance."},{"question":"Is SMAJ40AE3/TR13 bidirectional or unidirectional?","answer":"Unidirectional — one channel. It clamps only one polarity. For AC line protection, you would need a bidirectional TVS or two unidirectional parts in anti-series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ40AE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ40AE3-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}}