{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ22E3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ22E3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ22E3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ22E3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ22E3/TR13, Zener TVS diode, 22 V reverse standoff, 24.4 V breakdown, 39.4 V clamp, 500 W peak pulse power, DO-214AC (SMA) surface-mount package, Tape & Reel.","salesMarkdown":"## 22 V rail clamp with a 500 W pulse rating Its 24.4 V minimum breakdown voltage and 39.4 V maximum clamping at 12.7 A peak pulse define the protection window — the rail rides at 22 V, and the diode starts conducting at 24.4 V, holding the clamp below 40 V during a 500 W pulse. ## Voltage ratings and pulse handling The 24.4 V breakdown is the threshold where avalanche begins; at that point the diode starts shunting current. The 39.4 V clamp at 12.7 A peak pulse is the worst-case voltage the protected circuit sees during a 10/1000 µs surge. Rated for junction temperatures from -65°C to 150°C, this part covers outdoor telecom enclosures, industrial control cabinets, and under-hood automotive auxiliary circuits — anywhere a 22 V rail needs transient protection across a wide thermal swing. The SMA footprint is a standard two-pad layout; the cathode band identifies the unidirectional orientation.","metaTitle":"SMAJ22E3/TR13 TVS Diode – 22 V Standoff, 500 W, DO-214AC","metaDescription":"SMAJ22E3/TR13 – Zener TVS, 22 V reverse standoff, 24.4 V breakdown, 39.4 V clamp, 500 W peak pulse. 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":"SMAJ22","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)":"24.4V","Voltage - Clamping (Max) @ Ipp":"39.4V","Voltage - Reverse Standoff (Typ)":"22V","Current - Peak Pulse (10/1000µs)":"12.7A"}},"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 SMAJ22E3/TR13 RoHS compliant?","answer":"The suffix in the order code indicates RoHS compliance per Microchip's standard marking. The part is lead-free and meets the RoHS directive for solderability and environmental restrictions."},{"question":"What is the closest alternative to SMAJ22E3/TR13 in this family?","answer":"The SMAJ22A is a similar 22 V unidirectional TVS in the same DO-214AC package, also rated 500 W peak pulse. The primary difference is the suffix on this part, which denotes Microchip's RoHS-compliant build. Electrically the two are interchangeable for most applications — verify the breakdown and clamp voltage tolerances against your rail margin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ22E3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ22E3-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}}