{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ8.5CAE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ8.5CAE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ8.5CAE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ8.5CAE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ8.5CAE3/TR13, Zener TVS diode, bidirectional, 500W peak pulse power, 8.5V reverse standoff, DO-214AC (SMA) package, Tape & Reel.","salesMarkdown":"## What this TVS diode does on your board The SMAJ8.5CAE3/TR13 is a bidirectional Zener TVS diode from Microchip Technology, designed to clamp transients on signal or power rails up to 8.5V reverse standoff. The bidirectional configuration means a single device protects both polarities — useful on AC-coupled lines or where the signal swings through ground. The clamping voltage peaks at 14.4V at the rated 34.7A peak pulse current, so the rail being protected must tolerate that ceiling without damage. The minimum breakdown voltage is 9.44V, giving a guard band below which the diode does not conduct. ## Temperature grade and environment fit The SMA package footprint is well-known — the cathode tab area on the PCB copper plane sets the thermal resistance, so treat the pad geometry as part of the power derating calculation. The part is not rated for power-line protection — it is a signal-line or low-power rail clamp. Keep it on data lines, I/O ports, or auxiliary supply rails where the transient energy stays under 500W. The part is sourced through our distribution channel and quoted per order.","metaTitle":"SMAJ8.5CAE3/TR13 TVS Diode – 500W, Bidirectional","metaDescription":"SMAJ8.5CAE3/TR13 Zener TVS diode, 500W peak pulse, 8.5V reverse standoff, bidirectional, DO-214AC (SMA). Active lifecycle. Sourced per RFQ.","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":"SMAJ8.5","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)":"9.44V","Voltage - Clamping (Max) @ Ipp":"14.4V","Voltage - Reverse Standoff (Typ)":"8.5V","Current - Peak Pulse (10/1000µs)":"34.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7b3ddece4863b4621debe180df56adc8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SMAJ8.5CAE3/TR13 a direct replacement for SMAJ8.5CA?","answer":"The SMAJ8.5CA is the unidirectional version of the same base part number. The SMAJ8.5CAE3/TR13 is bidirectional, so it clamps both polarities. If your design expects a unidirectional clamp, the bidirectional part will still protect the rail but may conduct on negative swings where the unidirectional would not. Check your circuit's polarity requirement before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ8.5CAE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ8.5CAE3-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}}