{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ28AE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMBJ28AE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMBJ28AE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMBJ28AE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMBJ28AE3/TR13, Zener TVS diode, 600W peak pulse power, 28V reverse standoff, 45.4V clamping, DO-214AA (SMB) surface-mount package, Tape & Reel.","salesMarkdown":"## 28V rail protection – breakdown and clamping window This is a Zener-type TVS diode designed to protect a single unidirectional channel on a 28V nominal rail. The reverse standoff voltage is 28V – the rail can run at 28V without the diode conducting. Breakdown starts at 31.1V min, and clamping is specified at 45.4V max at the peak pulse current of 13.2A (10/1000µs waveform). That 45.4V ceiling is the voltage the protected circuitry must survive during a surge event. ## 600W peak pulse – sizing the protection budget That 600W is the product of the clamping voltage and the peak current – it tells you the diode can absorb a 13.2A surge without failing. For a 28V rail in industrial or telecom gear, this is a common protection tier. If your transient energy exceeds 600W for the given pulse shape, you need a larger device. ## DO-214AA SMB – surface-mount assembly Housed in a DO-214AA (SMB) package, surface-mount. The SMB footprint is larger than the smaller SMA but still compact enough for dense boards. The tape-and-reel delivery suits automated pick-and-place.","metaTitle":"SMBJ28AE3/TR13 – Microchip 600W Zener TVS Diode","metaDescription":"SMBJ28AE3/TR13 Zener TVS diode from Microchip Technology. 600W peak pulse power, 28V reverse standoff, 45.4V clamping. Active lifecycle, DO-214AA SMB package.","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":"SMBJ28","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMBJ (DO-214AA)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"31.1V","Voltage - Clamping (Max) @ Ipp":"45.4V","Voltage - Reverse Standoff (Typ)":"28V","Current - Peak Pulse (10/1000µs)":"13.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2850","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f566c62ad8bf6be9ecf452f6999d0b7a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy SMBJ28AE3/TR13 and how do I get a price?","answer":"The SMBJ28AE3/TR13 is an active Microchip part available through our distribution channel. Submit an RFQ with your target quantity – we source against the BOM line and confirm current pricing and lead time at quote time. No stock-holding claim is made here; availability is confirmed per order."},{"question":"What is the difference between SMBJ28A and SMBJ28AE3?","answer":"The '' suffix on SMBJ28AE3/TR13 typically indicates a lead-free / RoHS-compliant finish. The base electrical specs – 28V standoff, 31.1V breakdown, 45.4V clamping, 600W peak pulse – are identical between the two variants. The SMBJ28A (non-) may use a tin-lead plating. Confirm the specific datasheet for your exact suffix to verify RoHS status and plating material."},{"question":"Does SMBJ28AE3/TR13 work for a 24V DC rail?","answer":"Yes. The 28V reverse standoff is above 24V, so the diode will not conduct during normal operation. The 31.1V minimum breakdown gives margin before the diode starts clamping. For a 24V rail, this is a standard TVS selection – the clamp triggers only during overvoltage events."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMBJ28AE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMBJ28AE3-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}}