{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SA15A","brand":"onsemi","brandSlug":"onsemi","productSlug":"SA15A","canonicalUrl":"https://icboms.com/onsemi/SA15A","factsUrl":"https://icboms.com/api/mcp/products/SA15A","rawCanonicalId":null},"summary":{"shortDescription":"onsemi SA15A, Zener TVS diode, 500W peak pulse power, 15V reverse standoff, 24.4V clamping, DO-204AC (DO-15) axial package, through-hole mount, single unidirectional channel.","salesMarkdown":"The SA15A: It is a single unidirectional channel in a through-hole DO-15 axial package — the same footprint as a standard 1N series rectifier, so it slots into existing board layouts without a pad revision. At 16.7 V minimum breakdown, it starts conducting just above the 15 V standoff, clamping the surge to 24.4 V maximum at 20.6 A (10/1000 µs waveform). The 500 W rating means it handles a single 500 W pulse of that shape; repetitive surges need derating per the datasheet pulse-curve. onsemi lists the SA15A as Obsolete. A new design should migrate to an active SMD TVS in the same voltage class, such as onsemi's SMBJ15A (SMB package) or SMCJ15A (SMC package), which require a board layout change. ## Package and rework note DO-15 axial leads are hand-solderable and rework-friendly — the through-hole body handles a soldering iron or hot-air station without thermal damage to the die. The lead bend and cut length must match the original board hole spacing; axial parts are polarity-sensitive, with the cathode band marking the unidirectional orientation.","metaTitle":"SA15A onsemi Zener TVS Diode – 500W, DO-15, Obsolete","metaDescription":"SA15A onsemi Zener TVS diode, 500W peak pulse power, 15V standoff, 24.4V clamp, DO-15 axial. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"onsemi","Type":"Zener","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-204AC, DO-15, Axial","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Power - Peak Pulse":"500W","Base Product Number":"SA15","Operating Temperature":"-","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-15","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"16.7V","Voltage - Clamping (Max) @ Ipp":"24.4V","Voltage - Reverse Standoff (Typ)":"15V","Current - Peak Pulse (10/1000µs)":"20.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2ddfb3aab15d9dfde4b6845c96f94417.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order SA15A or check availability?","answer":"SA15A is obsolete but available through independent distribution. Submit an RFQ with your target quantity; we source from surplus and broker channels and confirm availability and current pricing at quote time. No stock-holding claim is made — each lot is verified per order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/SA15A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/SA15A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-18T13:48:31.437Z","lastPublished":"2026-07-18T13:48:31.437Z","indexable":true}}