{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ20E3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ20E3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ20E3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ20E3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ20E3/TR13, Zener TVS, 500W peak pulse power, 22.2V min breakdown, unidirectional, DO-214AC (SMA) surface-mount package, Tape & Reel.","salesMarkdown":"## Zener TVS – 500W peak pulse, 22.2V breakdown The SMAJ20E3/TR13 is a unidirectional Zener transient-voltage-suppression (TVS) diode from Microchip Technology, rated for 500W peak pulse power per the 10/1000µs waveform. Its minimum breakdown voltage is 22.2V, clamping a 20V nominal rail at 35.8V max under a 13.9A peak pulse current. The 22.2V minimum breakdown ensures the device does not conduct during normal 20V operation, leaving a 2.2V margin before avalanche. At the clamp point, 35.8V max is the voltage the protected circuit must survive for the pulse duration — a typical 20V-rated capacitor or IC with 40V absolute max has headroom. The 13.9A peak pulse current is the surge the diode shunts; verify your source impedance and expected transient energy stay within the 500W pulse derating curve. Microchip lists the SMAJ20E3/TR13 as Active. ## DO-214AC (SMA) – surface-mount footprint for automated assembly The DO-214AC (SMA) package uses a standard JEDEC footprint with a cathode tab on the top side.","metaTitle":"SMAJ20E3/TR13 Zener TVS Diode – Microchip, 500W, DO-214AC","metaDescription":"Microchip SMAJ20E3/TR13 Zener TVS, 500W peak pulse, 22.2V min breakdown, 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":"SMAJ20","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)":"22.2V","Voltage - Clamping (Max) @ Ipp":"35.8V","Voltage - Reverse Standoff (Typ)":"20V","Current - Peak Pulse (10/1000µs)":"13.9A"}},"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":"Does SMAJ20E3/TR13 come in tape and reel packaging?","answer":"Yes, the /TR13 suffix denotes Tape & Reel (TR) packaging, suitable for automated surface-mount assembly."},{"question":"What is the peak pulse power rating of SMAJ20E3?","answer":"This is the maximum surge energy the device can dissipate without damage, assuming proper derating for temperature."},{"question":"Is SMAJ20E3 unidirectional or bidirectional?","answer":"Unidirectional — it has one channel for positive-going transients. For bidirectional protection on AC or bipolar rails, a different part number in the SMAJ family would be needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ20E3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ20E3-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}}