{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ120E3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ120E3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ120E3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ120E3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ120E3/TR13, Zener TVS diode, 500W peak pulse power, 120V reverse standoff (Typ), DO-214AC (SMA) package, Tape & Reel","salesMarkdown":"## Surge clamp for 120 V rails Its 500 W peak pulse power rating (10/1000 µs waveform) means it can absorb a 2.3 A surge before the clamping voltage hits 214 V max — enough for most industrial and telecom secondary-side protection. ## Standoff voltage and clamping ceiling The 120 V reverse standoff voltage is the DC bus level the diode sees during normal operation — it will not conduct until the breakdown threshold of 133 V min is crossed. The clamping voltage of 214 V max at the peak pulse current tells you the maximum voltage the downstream circuitry will see during a surge event. That 214 V ceiling is the number to compare against your load's absolute maximum rating. That means the BOM position is not at risk of a sudden last-time-buy scramble. The suffix typically indicates lead-free / RoHS-compliant finish, though the evidence does not carry an explicit RoHS statement — confirm with the datasheet if your process requires a formal declaration.","metaTitle":"SMAJ120E3/TR13 Zener TVS, 500W, 120V Standoff, DO-214AC","metaDescription":"Microchip Technology SMAJ120E3/TR13 Zener TVS diode, 500W peak pulse power, 120V reverse standoff, DO-214AC (SMA) package. Active production, surface mount.","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":"SMAJ120","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AC (SMA)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"133V","Voltage - Clamping (Max) @ Ipp":"214V","Voltage - Reverse Standoff (Typ)":"120V","Current - Peak Pulse (10/1000µs)":"2.3A"}},"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":"What is the peak pulse power rating of the SMAJ120E3/TR13?","answer":"500 W peak pulse power per the 10/1000 µs waveform. That rating assumes the device is mounted on a standard copper pad area — the actual power-handling depends on the PCB thermal mass."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ120E3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ120E3-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}}