{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ43A-13","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMBJ43A-13","canonicalUrl":"https://icboms.com/diodes-inc/SMBJ43A-13","factsUrl":"https://icboms.com/api/mcp/products/SMBJ43A-13","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMBJ series, Zener TVS diode, SMBJ43A-13, 600W peak pulse, 43V reverse standoff, 8.6A Ipp, unidirectional, DO-214AA SMB package.","salesMarkdown":"## Clamping parameters and the protection window The SMBJ43A-13: A 43 V reverse standoff means this TVS stays off the rail up to that DC bias — the circuit sees no leakage penalty in normal operation. Breakdown starts at 47.8 V min, so a 48 V transient is the first edge the diode starts shunting. Clamp voltage is 69.4 V at the rated 8.6 A peak pulse current — the load must survive that ceiling for the 10/1000 µs waveform. The 600 W peak pulse power is the energy-handling headline, but the clamp voltage at the actual surge current is what determines whether the downstream IC sees a destructive overvoltage. Derate the 600 W figure above 25 °C per the datasheet curve — at 85 °C ambient the derating factor is typically 0.7×, leaving 420 W effective. DO-214AA SMB is a standard surface-mount footprint shared across the SMBJ family. The cathode band marks the unidirectional orientation — the single channel is polarity-sensitive, so a 180° rotation puts the junction in forward conduction and the protection fails. Reflow profile follows JEDEC J-STD-020 for the MSL level on the reel label. Operating temperature range is -55 °C to 150 °C junction — this covers the full industrial ambient band and most under-hood automotive environments. No derating needed below 25 °C, but the peak pulse power drops linearly above that. ## Sourcing posture and lifecycle The SMBJ series includes multiple standoff voltages in the same DO-214AA footprint — a BOM change to a different voltage (e.g. SMBJ5.0A through SMBJ170A) is a drop-in board swap if the protection threshold changes.","metaTitle":"SMBJ43A-13 Diodes Inc TVS, 600W, 43V Standoff, DO-214AA","metaDescription":"Diodes Inc SMBJ43A-13 Zener TVS diode, 600W peak pulse, 43V reverse standoff, 8.6A Ipp, DO-214AA SMB. Active production, sourced per 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":"SMBJ43","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMB","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"47.8V","Voltage - Clamping (Max) @ Ipp":"69.4V","Voltage - Reverse Standoff (Typ)":"43V","Current - Peak Pulse (10/1000µs)":"8.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4300","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/SMBJ43A-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/SMBJ43A-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}}