{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ51A-13","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMBJ51A-13","canonicalUrl":"https://icboms.com/diodes-inc/SMBJ51A-13","factsUrl":"https://icboms.com/api/mcp/products/SMBJ51A-13","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMBJ series Zener TVS diode, SMBJ51A-13, 51V reverse standoff, 82.4V clamp, 600W peak pulse power, DO-214AA SMB package, Tape & Reel.","salesMarkdown":"## Clamp voltage and pulse current — the real protection envelope The SMBJ51A-13: The 82.4 V clamp sets the upper bound on what the protected node sees during a surge. For a 51 V rail, this means the TVS holds the transient to about 1.6× the nominal voltage — tight enough that a downstream 100 V-rated DC-DC converter or linear regulator survives a 600 W pulse without avalanche breakdown. The 7.3 A peak pulse current rating at the standard 10/1000 µs waveform is the current the device can shunt without exceeding its thermal limit. For shorter pulses (8/20 µs, common in ESD testing), the peak current capability is significantly higher — the 600 W rating scales inversely with pulse width per the datasheet's derating curve. At elevated temperatures, the breakdown voltage shifts slightly (typically +0.1%/°C for Zener-type TVS), so the 56.7 V minimum breakdown at 25°C rises to about 63 V at 150°C, which still leaves margin below the 82.4 V clamp. ## DO-214AA SMB — footprint and reflow Housed in the DO-214AA (SMB) surface-mount package, the SMBJ51A-13 occupies a standard 4.6 mm × 5.4 mm footprint with a 2.3 mm height. The package is compatible with reflow soldering profiles per JEDEC J-STD-020; the typical peak reflow temperature is 260°C for 10 seconds. No special bake-out is required for moisture-sensitive level (MSL) 1-rated devices. The unidirectional configuration means the cathode band marks the grounded side — the anode connects to the protected rail. For a 51 V rail, the TVS sits reverse-biased in normal operation, drawing only leakage current (typically < 1 µA at 25°C).","metaTitle":"SMBJ51A-13 TVS Diode, 51V Standoff, 600W, DO-214AA","metaDescription":"SMBJ51A-13 Zener TVS diode from Diodes Inc, 51V reverse standoff, 82.4V clamp, 600W peak pulse power in DO-214AA SMB package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Diodes Incorporated","Type":"Zener","Series":"SMBJ","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SMBJ51","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMB","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"56.7V","Voltage - Clamping (Max) @ Ipp":"82.4V","Voltage - Reverse Standoff (Typ)":"51V","Current - Peak Pulse (10/1000µs)":"7.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5082cff9e06e9e3934f006f5710ece61.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMBJ51A-13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diodes-inc/SMBJ51A-13 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}}