{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ48CA-13-F","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ48CA-13-F","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ48CA-13-F","factsUrl":"https://icboms.com/api/mcp/products/SMAJ48CA-13-F","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ48CA-13-F Zener TVS, 400W peak pulse power, 48V reverse standoff, bidirectional, DO-214AC SMA package, Tape & Reel.","salesMarkdown":"## What the 400 W peak pulse rating means on a 48 V rail The SMAJ48CA-13-F: At a 48 V reverse standoff voltage, the clamping voltage holds at 77.4 V max when the 5.2 A peak pulse current hits. That clamp ceiling tells you the downstream silicon sees less than 78 V during a surge — well within the abs-max of a 60 V or 80 V bus capacitor or a downstream regulator's input rating. The bidirectional channel means a single device protects both polarities on a signal or power line — handy on AC-coupled data lines or on a 48 V rail where the return path can swing negative during a fault. No need for two back-to-back unidirectional parts. Housed in the DO-214AC (SMA) package, the SMAJ48CA-13-F is a surface-mount device with a low-profile body that reflows on standard FR-4 with a 260 °C peak profile. The SMA footprint is common across the SMAJ family — the same pad layout accepts 5 V, 12 V, or 48 V variants, so a single PCB land pattern covers the whole voltage range. The 400 W rating is derated above 25 °C per the standard thermal derating curve; at 125 °C ambient the effective pulse power drops to roughly 200 W.","metaTitle":"SMAJ48CA-13-F Diodes Inc TVS, 400W, 48V Bidirectional","metaDescription":"SMAJ48CA-13-F Diodes Inc Zener TVS, 400W peak pulse, 48V reverse standoff, bidirectional, DO-214AC SMA. Active production, sourced per RFQ.","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":"SMAJ48","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","Voltage - Breakdown (Min)":"53.3V","Voltage - Clamping (Max) @ Ipp":"77.4V","Voltage - Reverse Standoff (Typ)":"48V","Current - Peak Pulse (10/1000µs)":"5.2A"}},"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":"How do I get current pricing and availability for SMAJ48CA-13-F?","answer":"Pricing and stock availability are confirmed at the time of RFQ against your BOM quantity — submit a request for a current quote."},{"question":"What is the closest pin-compatible alternative to SMAJ48CA-13-F in this Circuit Protection family?","answer":"Any bidirectional SMAJ-series TVS with the same package and a matching reverse standoff voltage (e.g., SMAJ5.0CA through SMAJ170CA) is footprint-compatible, but the voltage rating must match the protected rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMAJ48CA-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/SMAJ48CA-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}}