{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ESD9C3.3ST5G","brand":"onsemi","brandSlug":"onsemi","productSlug":"ESD9C3.3ST5G","canonicalUrl":"https://icboms.com/onsemi/ESD9C3.3ST5G","factsUrl":"https://icboms.com/api/mcp/products/ESD9C3.3ST5G","rawCanonicalId":null},"summary":{"shortDescription":"onsemi ESD9C3.3ST5G, Zener ESD clamp, 3.3V reverse standoff, AEC-Q101 qualified, SOD-923 surface mount package.","salesMarkdown":"The onsemi ESD9C3.3ST5G is a unidirectional Zener-type ESD protection diode. It clamps transients on a single line to a 3.3 V (max) reverse standoff voltage, with a minimum breakdown of 5 V. The 12.8 pF typical capacitance at 1 MHz keeps signal degradation low enough for high-speed interfaces like USB 2.0, HDMI, or LVDS — the guard band on edge rates is tighter than a general-purpose TVS but still workable for most differential pairs. Packaged in SOD-923, it mounts on the PCB directly adjacent to the connector or IC pin being protected. The SOD-923 footprint is smaller than the common SOD-323, which helps on dense layouts but also means the power dissipation per pulse is lower — derate if the system sees repetitive 8/20 μs surges above the datasheet peak-pulse-current curve. ## AEC-Q101 grade and temperature range For an aerospace or defence BOM, the AEC-Q101 report provides a screening baseline, but the part lacks a full MIL-PRF-19500 or QML Class V flow — a rad-hard part it is not, but the AEC lot-trace and test data can be used to reduce risk in a non-radiation environment. Cut Tape quantities are also available for prototyping.","metaTitle":"ESD9C3.3ST5G onsemi Zener ESD Clamp, AEC-Q101, SOD-923","metaDescription":"onsemi ESD9C3.3ST5G Zener ESD protection diode, 3.3V reverse standoff, 12.8pF typ capacitance, AEC-Q101 qualified. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"onsemi","Type":"Zener","Grade":"Automotive","Series":"-","Packaging":"Tape & Reel (TR) Cut Tape (CT)","Part Status":"Active","Applications":"-","Mounting Type":"Surface Mount","Qualification":"AEC-Q101","Package / Case":"SOD-923","lifecycle_stage":"eol_hot","Power - Peak Pulse":"-","Base Product Number":"ESD9C3.3","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"12.8pF @ 1MHz","Supplier Device Package":"SOD-923","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"5V","Voltage - Clamping (Max) @ Ipp":"-","Voltage - Reverse Standoff (Typ)":"3.3V (Max)","Current - Peak Pulse (10/1000µs)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4c8e2eef22893fa6e2677efbd232263b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is ESD9C3.3ST5G AEC-Q101 qualified?","answer":"Yes, the ESD9C3.3ST5G is AEC-Q101 qualified, making it suitable for automotive-grade designs that require documented reliability testing."},{"question":"What is the capacitance of ESD9C3.3ST5G, and does it matter for high-speed signals?","answer":"Typical capacitance is 12.8 pF at 1 MHz. At that level, the diode adds about 2–3 pF of loading to the line, which is acceptable for USB 2.0 (480 Mbps) and most LVDS links up to a few hundred MHz. For 5 Gbps+ interfaces, a sub-1 pF TVS would be a better fit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/ESD9C3.3ST5G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/ESD9C3.3ST5G 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}}