{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ESD5Z2.5T1","brand":"onsemi","brandSlug":"onsemi","productSlug":"ESD5Z2.5T1","canonicalUrl":"https://icboms.com/onsemi/ESD5Z2.5T1","factsUrl":"https://icboms.com/api/mcp/products/ESD5Z2.5T1","rawCanonicalId":null},"summary":{"shortDescription":"onsemi ESD5Z2.5T1, Zener-type unidirectional ESD suppressor, 2.5V reverse standoff, 120W peak pulse power, SOD-523 package, Tape & Reel.","salesMarkdown":"No official successor is listed on the record, so replacement must be evaluated on a form-fit-function basis for the specific application. For BOM lines still calling out this exact MPN, independent distribution is the primary channel. The breakdown voltage minimum is 4V, so the device remains non-conductive below that threshold. Peak pulse power is rated at 120W under an 8/20µs waveform, with a corresponding peak pulse current of 11A. The clamping voltage at that current is 10.9V max, which means a 2.5V signal line sees a transient clamped to under 11V – sufficient for many consumer-grade ICs but check the absolute maximum rating of the protected device. ## Capacitance and package – layout constraints Capacitance is 145pF at 1 MHz. This is a moderate value – fine for low-speed control signals or I2C, but too high for high-speed differential pairs like USB 2.0 (480 Mbps) or Ethernet, where loading above 5pF per line degrades signal integrity. The SOD-523 package (SC-79 equivalent) measures roughly 1.6 x 0.8 mm with a 0.6 mm height. It is a surface-mount footprint suited for automated assembly; manual rework is possible with a fine-tip iron and magnification. The small body limits thermal dissipation, so the 120W rating assumes a short-duration pulse, not continuous power.","metaTitle":"ESD5Z2.5T1 onsemi Zener ESD Protection Diode – Obsolete","metaDescription":"ESD5Z2.5T1 from onsemi is a 2.5V unidirectional Zener ESD suppressor in SOD-523.","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)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"SC-79, SOD-523","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Power - Peak Pulse":"120W","Base Product Number":"ESD5","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":"$0.1700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/32a7aa25708c44b218e59a0ef208ee83.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the ESD5Z2.5T1 or check availability?","answer":"The ESD5Z2.5T1 is obsolete per onsemi. We source it through our independent supply chain; submit an RFQ with your target quantity and we will confirm current availability and pricing at quote time."},{"question":"Is the ESD5Z2.5T1 obsolete?","answer":"Yes, onsemi lists the ESD5Z2.5T1 as Obsolete. No official successor is recorded, so any replacement must be evaluated for electrical and mechanical compatibility."},{"question":"What is the capacitance of the ESD5Z2.5T1?","answer":"The capacitance is 145pF at 1 MHz. This is suitable for low-speed signals but may load high-speed data lines beyond acceptable limits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/ESD5Z2.5T1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/ESD5Z2.5T1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:22:10.990Z","lastPublished":"2026-07-17T20:22:10.990Z","indexable":true}}