{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ120A-13","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMBJ120A-13","canonicalUrl":"https://icboms.com/diodes-inc/SMBJ120A-13","factsUrl":"https://icboms.com/api/mcp/products/SMBJ120A-13","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMBJ series Zener TVS diode, SMBJ120A-13, 600W peak pulse, 120V reverse standoff, 193V clamping, DO-214AA SMB package, surface mount.","salesMarkdown":"## What the 600W rating means on the bench The SMBJ120A-13: This is a 600W peak pulse power Zener TVS diode in the SMBJ series from Diodes Incorporated — unidirectional, single-channel protection for a 120V nominal rail. The 193V clamping voltage at 3.1A peak pulse current (10/1000µs waveform) means a 120V bus sees a hard clamp at 193V before the part absorbs the surge. That 600W rating is the peak pulse power at 25°C; derate it above 25°C per the datasheet curve, and at 150°C junction the effective pulse handling drops to roughly 300W. For a 24V or 48V telecom rail this part is overkill; for a 120V DC bus or a 120VAC rectified line it sits right in the sweet spot. ## Package and rework reality DO-214AA (SMB) is a standard JEDEC surface-mount package — two terminals, a cathode band on the body, no hidden pads. The body is about 4.6 mm long by 3.6 mm wide, with a gull-wing lead form that lifts the part off the board about 0.1 mm. That standoff is enough for a solvent rinse to flow under the part after reflow. The cathode band is clearly marked on the body — no ambiguity about orientation. The package is not moisture-sensitive per JEDEC Level 1, so no bake-out before rework unless it has been sitting in a humid warehouse for months.","metaTitle":"SMBJ120A-13 Diodes Inc TVS Diode, 600W, DO-214AA","metaDescription":"SMBJ120A-13 Zener TVS diode, 120V standoff, 193V clamp, 600W peak pulse. Active production. DO-214AA SMB package. Order via RFQ.","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); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SMBJ120","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMB","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"133V","Voltage - Clamping (Max) @ Ipp":"193V","Voltage - Reverse Standoff (Typ)":"120V","Current - Peak Pulse (10/1000µs)":"3.1A"}},"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/SMBJ120A-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/SMBJ120A-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}}