{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ48CAE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ48CAE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ48CAE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ48CAE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ48CAE3/TR13, bidirectional Zener TVS diode, 48V reverse standoff, 500W peak pulse power, DO-214AC (SMA) surface-mount package, Tape & Reel.","salesMarkdown":"## 48V rail protection in a single SMA package Its reverse standoff voltage is 48V, meaning it stays off the bus under normal conditions and only conducts when the surge exceeds the 53.3V minimum breakdown. The 500W peak pulse power rating at 10/1000µs waveform tells you how much energy it can shunt before the junction overheats — a critical number for sizing protection on power inputs, relay coils, or long signal cables. ## Clamping and current handling at the surge edge When the transient hits, the diode clamps at a maximum of 77.4V while conducting 6.5A peak pulse current. That 77.4V clamp is the voltage your downstream circuitry must survive — if the 48V rail feeds a regulator with a 70V absolute max, this part does not protect it. The single bidirectional channel clamps both positive and negative spikes, so one device replaces two unidirectional TVS diodes on AC-coupled or bipolar lines. Microchip lists the SMAJ48CAE3/TR13 as Active. No end-of-life notice, no successor to track. ## Temperature range and application environments General-purpose application means it fits telecom line cards, industrial I/O, battery management, and 48V PoE ports without special qualification paperwork.","metaTitle":"SMAJ48CAE3/TR13 TVS Diode – 48V, 500W, DO-214AC","metaDescription":"SMAJ48CAE3/TR13 bidirectional Zener TVS, 48V reverse standoff, 500W peak pulse, DO-214AC. Active production – sourced per RFQ. Operating temp -65°C to 150°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Microchip Technology","Type":"Zener","Series":"-","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"500W","Base Product Number":"SMAJ48","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AC (SMA)","Voltage - Breakdown (Min)":"53.3V","Voltage - Clamping (Max) @ Ipp":"77.4V","Voltage - Reverse Standoff (Typ)":"48V","Current - Peak Pulse (10/1000µs)":"6.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1625","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7b3ddece4863b4621debe180df56adc8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the SMAJ48CAE3/TR13 bidirectional?","answer":"Yes, it is a single bidirectional channel, clamping both positive and negative transients. One device protects an AC-coupled or bipolar line where the signal swings above and below ground."},{"question":"What is the peak pulse power of the SMAJ48CAE3/TR13?","answer":"Rated at 500W for a 10/1000µs waveform. This defines the maximum surge energy the device can absorb before failure — use it to size protection for a given transient energy on a 48V rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ48CAE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ48CAE3-TR13 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}}