{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4728AG","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4728AG","canonicalUrl":"https://icboms.com/microchip/1N4728AG","factsUrl":"https://icboms.com/api/mcp/products/1N4728AG","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4728AG Zener Diode, 3.3 V, 1 W, ±5% Tolerance, DO-204AL (DO-41) Axial, Through Hole, Bulk.","salesMarkdown":"## 3.3 V regulation at 1 W The 1N4728AG is a 3.3 V Zener diode rated for 1 W continuous power dissipation — the voltage reference or shunt regulation point for a low-voltage rail in a through-hole design. Tolerance is ±5%, so the actual Zener voltage sits between 3.135 V and 3.465 V at the test current; the 10 Ohm maximum impedance (Zzt) keeps the regulation slope tight across the operating current range. ## DO-41 axial package and temperature range Reverse leakage is 100 µA maximum at 1 V reverse voltage, and forward voltage drop is 1.2 V maximum at 200 mA forward current — useful when the diode sees brief forward bias during transient conditions.","metaTitle":"Microchip 1N4728AG Zener Diode, 3.3V, 1W, DO-41, Axial","metaDescription":"1N4728AG Zener diode, 3.3V nominal, 1W power, ±5% tolerance, DO-41 axial package. Active production, order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Microchip Technology","Series":"-","Package":"Bulk","Tolerance":"±5%","Power - Max":"1 W","Mounting Type":"Through Hole","Package / Case":"DO-204AL, DO-41, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Impedance (Max) (Zzt)":"10 Ohms","Operating Temperature":"-65°C~175°C","Supplier Device Package":"DO-41","Voltage - Zener (Nom) (Vz)":"3.3 V","Current - Reverse Leakage @ Vr":"100 µA @ 1 V","Voltage - Forward (Vf) (Max) @ If":"1.2 V @ 200 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.7200","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N4728AG/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4728AG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4728AG 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}}