{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ150CA-13","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ150CA-13","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ150CA-13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ150CA-13","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ150CA-13 bidirectional Zener TVS diode, 150V reverse standoff, 243V clamping, 400W peak pulse power, DO-214AC (SMA) package, Tape & Reel.","salesMarkdown":"## Clamping voltage and the protection window The SMAJ150CA-13: That 243 V ceiling is what the downstream silicon sees during a surge; if the protected device's abs-max rating sits below that, the TVS absorbs the energy but the load still needs margin above the clamp. Rated 400 W peak pulse power for the 10/1000 µs exponential waveform, the SMAJ150CA-13 handles the kind of surge you see from inductive load switching or secondary lightning transients on a 150 V bus. The 1.6 A peak pulse current at the clamp voltage confirms the power budget: 243 V × 1.6 A gives 389 W, just under the 400 W ceiling. For shorter pulses (8/20 µs) the peak current capability is higher, but the datasheet's derating curve above 25 °C ambient is the real limiter in a hot enclosure. ## DO-214AC SMA — board-fit and thermal path Housed in the standard DO-214AC (SMA) surface-mount package, the SMAJ150CA-13's thermal resistance to ambient depends heavily on the copper pad area under the cathode tab. A 25 mm² pad on a standard FR4 board drops the junction-to-ambient thermal resistance enough to keep the die below 150 °C during a 400 W pulse. The SMA footprint is shared across the whole SMAJ family, so a single PCB land pattern serves the full voltage range from 5 V to 188 V.","metaTitle":"SMAJ150CA-13 TVS Diode, 150V Bidirectional, 400W, DO-214AC","metaDescription":"SMAJ150CA-13 bidirectional TVS from Diodes Inc, 150V standoff, 243V clamp, 400W peak pulse, DO-214AC. Active production, 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)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","lifecycle_stage":"eol_hot","Power - Peak Pulse":"400W","Base Product Number":"SMAJ150","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","Voltage - Breakdown (Min)":"167V","Voltage - Clamping (Max) @ Ipp":"243V","Voltage - Reverse Standoff (Typ)":"150V","Current - Peak Pulse (10/1000µs)":"1.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"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/SMAJ150CA-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/SMAJ150CA-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}}