{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ20A-13-F","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ20A-13-F","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ20A-13-F","factsUrl":"https://icboms.com/api/mcp/products/SMAJ20A-13-F","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ20A-13-F TVS Zener diode, 400W peak pulse power, 20V reverse standoff, 32.4V clamping, DO-214AC SMA package, Tape & Reel.","salesMarkdown":"## TVS clamp for a 20 V rail The SMAJ20A-13-F is a unidirectional TVS Zener diode from Diodes Incorporated, rated for 400 W peak pulse power across a 10/1000 µs waveform. Its 20 V reverse standoff voltage sits just below the 22.2 V minimum breakdown, so it stays transparent on a nominal 20 V supply until a transient pushes the rail above that threshold. ## Clamping voltage and current handling When the transient exceeds breakdown, the diode clamps at 32.4 V maximum while conducting 12.3 A peak pulse current. That clamp voltage is the ceiling the downstream circuitry must survive — a 20 V-rated IC on the same rail sees the full clamp level during the event. The device operates across -55 °C to 150 °C junction temperature, covering the full industrial and automotive ambient range. The DO-214AC SMA package is a standard surface-mount footprint compatible with reflow soldering.","metaTitle":"SMAJ20A-13-F Diodes Inc TVS, 400W, 20V, DO-214AC","metaDescription":"SMAJ20A-13-F TVS diode, 400W peak pulse, 20V standoff, 32.4V clamp, DO-214AC SMA. Active production, Diodes Inc. Quoted to order.","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","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","Unidirectional Channels":"1","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":"$0.3900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0270111b098582f24c0b7d28e81a77ac.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMAJ20A-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/SMAJ20A-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}}