{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ20CA-13-F","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ20CA-13-F","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ20CA-13-F","factsUrl":"https://icboms.com/api/mcp/products/SMAJ20CA-13-F","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ20CA-13-F bidirectional Zener TVS diode, 400W peak pulse power, 20V reverse standoff, 32.4V clamping, DO-214AC SMA package, Tape & Reel.","salesMarkdown":"## 400 W bidirectional TVS for 20 V rails The SMAJ20CA-13-F: Breakdown occurs at 22.2 V minimum, so the part triggers before the rail sees damaging overvoltage, and the 12.3 A peak pulse current rating handles the surge from a typical 24 V supply transient or inductive kickback. One bidirectional channel protects a single signal or power pair, and the -55°C to 150°C junction temperature range covers both cold-start and hot-soak conditions in outdoor or industrial enclosures. Housed in the standard DO-214AC (SMA) surface-mount package, the SMAJ20CA-13-F uses the same footprint as other SMAJ-series TVS diodes, so a single PCB land pattern serves the whole family. The SMA body is rated for the full 400 W pulse without external heatsinking — the copper pour on the cathode tab sets the thermal impedance; a 25 mm² pad area keeps junction temperature within limits during repetitive surge events. Supplied in Tape & Reel (TR) or Cut Tape (CT) for pick-and-place assembly; the reel quantity matches standard 8 mm embossed carrier per EIA-481.","metaTitle":"Diodes Inc SMAJ20CA-13-F TVS, 400W, 20V Bidirectional, SMA","metaDescription":"Diodes Incorporated SMAJ20CA-13-F bidirectional TVS diode, 400W peak pulse power, 20V standoff, 32.4V clamp, DO-214AC SMA.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Diodes Incorporated","Type":"Zener","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"400W","Base Product Number":"SMAJ20","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","Voltage - Breakdown (Min)":"22.2V","Voltage - Clamping (Max) @ Ipp":"32.4V","Voltage - Reverse Standoff (Typ)":"20V","Current - Peak Pulse (10/1000µs)":"12.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0270111b098582f24c0b7d28e81a77ac.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the clamping performance of this TVS on a 20V rail?","answer":"With a 20 V reverse standoff voltage, the device triggers at 22.2 V minimum breakdown and clamps the surge to 32.4 V maximum at the rated 12.3 A peak pulse current (10/1000 µs waveform). This keeps the protected rail below the typical absolute-max rating of downstream 24 V-tolerant ICs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMAJ20CA-13-F","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diodes-inc/SMAJ20CA-13-F 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}}