{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ43CA-13","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ43CA-13","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ43CA-13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ43CA-13","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ43CA-13 bidirectional Zener TVS diode, DO-214AC SMA package, 43V reverse standoff, 400W peak pulse power, 69.4V clamping, 5.7A peak pulse current, active production.","salesMarkdown":"## 43V rail protection — what the clamping numbers mean on your bench The SMAJ43CA-13: With a 43V reverse standoff voltage, this TVS sits across a 36V or 42V nominal rail without conducting leakage. The breakdown is guaranteed at 47.8V minimum, so the diode stays off under normal operating conditions and only starts clamping when the transient pushes the rail above that threshold. The clamping voltage is 69.4V maximum at the rated 5.7A peak pulse current (10/1000µs waveform). That 69.4V ceiling is what the downstream ICs see during a surge — verify the absolute-max rating of the protected device stays above this clamp level. The 400W peak pulse power is the energy handling capacity for that waveform; shorter pulses (8/20µs) allow higher peak current before the junction reaches its thermal limit. ## DO-214AC footprint and temperature envelope Housed in the standard DO-214AC (SMA) surface-mount package, with the supplier device package also listed as SMA. The footprint matches the common JEDEC outline for this power class — reflow profile follows the solder paste manufacturer's recommendation for the lead-free finish. The operating junction temperature range spans -55°C to +150°C, which covers automotive under-hood, industrial enclosures, and outdoor telecom cabinets without derating concerns at the high end.","metaTitle":"SMAJ43CA-13 Diodes Inc TVS, 43V Bidirectional, DO-214AC","metaDescription":"SMAJ43CA-13 Diodes Incorporated bidirectional TVS diode, 43V reverse standoff, 400W peak pulse, DO-214AC SMA. Active production, sourced 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","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":"$0.4300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a6e414533ed6f0f7c15ae6d19d66ae3c.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","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 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}}