{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ESD5Z2.5T1G","brand":"onsemi","brandSlug":"onsemi","productSlug":"ESD5Z2.5T1G","canonicalUrl":"https://icboms.com/onsemi/ESD5Z2.5T1G","factsUrl":"https://icboms.com/api/mcp/products/ESD5Z2.5T1G","rawCanonicalId":null},"summary":{"shortDescription":"onsemi ESD5Z2.5T1G, Zener TVS diode, 2.5V reverse standoff, 120W peak pulse power, unidirectional, SOD-523 package","salesMarkdown":"## 2.5V reverse standoff for low-voltage signal protection The ESD5Z2.5T1G is a unidirectional Zener TVS diode from onsemi, designed to clamp transients on 2.5V and 3.3V logic rails without interfering with normal signal levels. Its 2.5V (max) reverse standoff voltage means it stays off the line during normal operation, only conducting when a transient exceeds the 4V minimum breakdown voltage. ## 120W peak pulse in a SOD-523 footprint Rated for 120W peak pulse power under the 8/20µs waveform, this part handles the energy from typical ESD strikes or inductive load dumps. The 11A peak pulse current at 10.9V clamping gives a clear margin for IEC 61000-4-2 level 4 events. The 145pF capacitance at 1MHz is low enough for USB 2.0 (480 Mbps) and similar high-speed interfaces, though it may load higher-frequency signals above 1 GHz. ## SOD-523: compact surface-mount for dense boards Housed in the SOD-523 package, also known as SC-79, this diode occupies about 1.6 mm × 0.8 mm of board space. The surface-mount footprint suits high-density layouts where every square millimeter counts.","metaTitle":"ESD5Z2.5T1G onsemi Zener TVS Diode – 2.5V, 120W, SOD-523","metaDescription":"onsemi ESD5Z2.5T1G Zener TVS diode, 2.5V reverse standoff, 120W peak pulse, 145pF capacitance, SOD-523. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"onsemi","Type":"Zener","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"SC-79, SOD-523","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"120W","Base Product Number":"ESD5Z2.5","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"145pF @ 1MHz","Supplier Device Package":"SOD-523","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"4V","Voltage - Clamping (Max) @ Ipp":"10.9V","Voltage - Reverse Standoff (Typ)":"2.5V (Max)","Current - Peak Pulse (10/1000µs)":"11A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/32a7aa25708c44b218e59a0ef208ee83.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the ESD5Z2.5T1G a Zener or a TVS diode?","answer":"It is a Zener-type TVS diode. The device uses Zener breakdown for fast clamping, but it is optimized for transient suppression rather than voltage regulation. The datasheet lists it under Circuit Protection, and the 120W peak pulse rating confirms its TVS role."},{"question":"Can the ESD5Z2.5T1G be used for USB 2.0 ESD protection?","answer":"Yes, the 145pF capacitance at 1MHz is low enough for USB 2.0 (480 Mbps) signal integrity. The 2.5V reverse standoff protects the 3.3V VBUS and D+/D- lines without clipping. However, the unidirectional design means it only clamps positive transients; for bidirectional protection on differential pairs, consider a bidirectional TVS."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/ESD5Z2.5T1G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/ESD5Z2.5T1G 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}}