{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ43CE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMBJ43CE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMBJ43CE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMBJ43CE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMBJ43CE3/TR13, Zener TVS diode, 600W peak pulse power, 43V reverse standoff, 47.8V min breakdown, DO-214AA (SMB) surface-mount package, Tape & Reel.","salesMarkdown":"## What the 47.8V breakdown buys your rail The SMBJ43CE3/TR13 is a Zener TVS diode from Microchip Technology, rated for 600W peak pulse power per the 10/1000µs waveform. The 47.8V minimum breakdown voltage sets the clamp threshold — the diode starts conducting at that point, shunting surge current away from the protected circuit. Reverse standoff is 43V (typical), meaning the diode stays off below that rail voltage. For a 36V or 42V bus, this part leaves margin before the breakdown knee. ## Clamping and current handling Maximum clamping voltage at peak pulse current is 76.7V — that is the voltage the load sees during the surge event. The peak pulse current itself is 7.8A for the 10/1000µs waveform. Single bidirectional channel means one device protects both polarities on the same line, saving board space versus two unidirectional diodes back-to-back. Microchip lists the SMBJ43CE3/TR13 as Active. Store the reels dry; the DO-214AA body is not moisture-sensitive per typical Microchip handling, but standard MSL precautions apply for long-term shelf storage. The wide range means the clamping voltage and leakage shift predictably across temperature — derate peak pulse power above 25°C per the datasheet curve. Surface-mount DO-214AA (SMB) package — the same footprint as many industry-standard TVS diodes. The two-pad layout is straightforward; the cathode band on the body marks the bidirectional orientation (no polarity concern for a bidirectional device).","metaTitle":"SMBJ43CE3/TR13 TVS Diode – 600W, 43V Standoff, DO-214AA","metaDescription":"SMBJ43CE3/TR13 Zener TVS diode, 600W peak pulse power, 43V reverse standoff, 47.8V min breakdown, DO-214AA SMB 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-214AA, SMB","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SMBJ43","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMBJ (DO-214AA)","Voltage - Breakdown (Min)":"47.8V","Voltage - Clamping (Max) @ Ipp":"76.7V","Voltage - Reverse Standoff (Typ)":"43V","Current - Peak Pulse (10/1000µs)":"7.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f566c62ad8bf6be9ecf452f6999d0b7a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package type is SMBJ43CE3?","answer":"The SMBJ43CE3/TR13 comes in a DO-214AA (SMB) surface-mount package. The /TR13 suffix indicates supply on a 13-inch Tape & Reel. The footprint is standard for this class of TVS diode, making it straightforward to cross-reference with other suppliers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMBJ43CE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMBJ43CE3-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}}