{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ12CAE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ12CAE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ12CAE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ12CAE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ12CAE3/TR13, Zener TVS diode, bidirectional, 12V reverse standoff, 13.3V min breakdown, 19.9V clamp at 25.1A, 500W peak pulse power (10/1000µs), DO-214AC (SMA) package, Tape & Reel, Active.","salesMarkdown":"## 12V rail protection in a single bidirectional die Its 12V reverse standoff voltage means the device stays out of the circuit during normal DC operation, drawing negligible leakage. The 13.3V minimum breakdown voltage guarantees avalanche conduction begins before the protected load sees an overvoltage, with margin for rail tolerance and temperature drift. At the peak pulse current of 25.1A (10/1000µs waveform), the clamping voltage is 19.9V maximum. This is the voltage the downstream IC must survive; if your 12V-powered device has a 20V absolute maximum rating, this TVS leaves only 0.1V of headroom at the surge peak — a tight margin that may require a lower-clamp part or a secondary protection stage. The 500W peak pulse power rating defines the energy the diode can absorb in a single 1 ms surge; repeated or longer-duration events require derating per the datasheet curve.","metaTitle":"SMAJ12CAE3/TR13 – Microchip 12V Bidirectional TVS, DO-214AC","metaDescription":"SMAJ12CAE3/TR13 Microchip Technology Zener TVS diode. 12V reverse standoff, 13.3V min breakdown, 19.9V clamp at 25.1A, 500W peak pulse power.","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":"SMAJ12","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AC (SMA)","Voltage - Breakdown (Min)":"13.3V","Voltage - Clamping (Max) @ Ipp":"19.9V","Voltage - Reverse Standoff (Typ)":"12V","Current - Peak Pulse (10/1000µs)":"25.1A"}},"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 SMAJ12CAE3/TR13 bidirectional?","answer":"Yes, it is a single bidirectional channel. It clamps transients of either polarity, making it suitable for AC lines or DC rails where reverse-voltage events are possible."},{"question":"Does SMAJ12CAE3/TR13 have an equivalent from Vishay or Littelfuse?","answer":"Both Vishay and Littelfuse offer bidirectional 12V TVS diodes in the DO-214AC package with similar 500W peak pulse power ratings. The exact breakdown and clamp voltages vary slightly by manufacturer; compare the datasheet min/max values for your rail margin before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ12CAE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ12CAE3-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}}