{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ43CA-13-F","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ43CA-13-F","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ43CA-13-F","factsUrl":"https://icboms.com/api/mcp/products/SMAJ43CA-13-F","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ43CA-13-F bidirectional Zener TVS diode, 43V reverse standoff, 69.4V clamp, 400W peak pulse power, DO-214AC SMA package, Tape & Reel.","salesMarkdown":"## Bidirectional 43V TVS for general-purpose rail clamping The SMAJ43CA-13-F: Rated for 400W peak pulse power, this part sits in the standard SMAJ power class — adequate for secondary protection on 24V and 36V rails where the upstream series impedance limits the surge current. The single bidirectional channel means symmetrical clamping for AC-coupled or floating lines where polarity is not fixed. ## Package, footprint, and temperature grade Housed in the DO-214AC (SMA) package with supplier device package designation SMA, the footprint is shared across the SMAJ family — a single copper pad pattern on the PCB serves the full voltage range from 5V to 188V. The junction temperature range spans -55°C to 150°C, covering industrial enclosures and automotive underhood environments where ambient peaks at 125°C leave 25°C margin for self-heating during a transient. Supplied in Tape & Reel (TR) or Cut Tape (CT) options, the reel quantity suits automated pick-and-place for volume production. Surface-mount termination means no through-hole soldering step — the reflow profile follows standard SAC305 solder paste recommendations for the SMA body size. ## Active production and sourcing posture No official second-source or pin-compatible cross-reference is recorded for this specific bidirectional 43V variant. The SMAJ family is widely second-sourced across the TVS industry — parametric equivalents from other manufacturers exist at the same 43V standoff and 400W rating, but pinout and package dimensions should be verified against the DO-214AC footprint before substituting.","metaTitle":"SMAJ43CA-13-F Diodes Inc TVS, 43V Bidirectional, 400W, SMA","metaDescription":"SMAJ43CA-13-F bidirectional Zener TVS diode from Diodes Inc. 43V reverse standoff, 69.4V clamp, 400W peak pulse power. Active production, DO-214AC SMA package.","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":"SMAJ43","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","Voltage - Breakdown (Min)":"47.8V","Voltage - Clamping (Max) @ Ipp":"69.4V","Voltage - Reverse Standoff (Typ)":"43V","Current - Peak Pulse (10/1000µs)":"5.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4400","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/SMAJ43CA-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/SMAJ43CA-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}}