{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ESD9X3.3ST5G","brand":"onsemi","brandSlug":"onsemi","productSlug":"ESD9X3.3ST5G","canonicalUrl":"https://icboms.com/onsemi/ESD9X3.3ST5G","factsUrl":"https://icboms.com/api/mcp/products/ESD9X3.3ST5G","rawCanonicalId":null},"summary":{"shortDescription":"onsemi ESD9X3.3ST5G, Zener ESD protection diode, 3.3V (max) reverse standoff, 10.4V clamping at 9.8A (8/20µs), 80pF capacitance, SOD-923 package, -55°C to 150°C junction range.","salesMarkdown":"## 3.3V rail ESD clamp in SOD-923 The onsemi ESD9X3.3ST5G is a single-channel Zener ESD protection diode designed for general-purpose circuit protection on 3.3V signal or power rails. Its 3.3V (max) reverse standoff voltage means it begins conducting only when the line exceeds that threshold, leaving the 3.3V rail undisturbed during normal operation. With a peak pulse power rating of 102W and a clamping voltage of 10.4V (max) at 9.8A peak pulse current (8/20µs waveform), this part clamps fast ESD transients to a level a 3.3V IC can survive — provided the IC's absolute-max rating is above 10.4V. The 80pF capacitance at 1MHz is moderate; it suits general-purpose I/O, I2C, SPI, and lower-speed interfaces. ## Wide temperature range, small footprint The SOD-923 package is one of the smallest ESD diode footprints available. ## Active production, tape-and-reel delivery The base product number is ESD9X3.3. No direct replacement is listed by onsemi — the ESD9X3.3 family is the active series. For a lower-capacitance alternative in the same package, evaluate the ESD9X3.3ST5G against the ESD9B3.3ST5G (if capacitance is the constraint).","metaTitle":"ESD9X3.3ST5G onsemi Zener ESD Protector, 3.3V, SOD-923","metaDescription":"onsemi ESD9X3.3ST5G Zener ESD protection diode, 3.3V reverse standoff, 10.4V clamp at 9.8A, 80pF, SOD-923. 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":"SOD-923","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"102W","Base Product Number":"ESD9X3.3","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"80pF @ 1MHz","Supplier Device Package":"SOD-923","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"5V","Voltage - Clamping (Max) @ Ipp":"10.4V","Voltage - Reverse Standoff (Typ)":"3.3V (Max)","Current - Peak Pulse (10/1000µs)":"9.8A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9431dc0d7a4d444b344403bcff4938f8.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/ESD9X3.3ST5G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/ESD9X3.3ST5G 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}}