{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4744AG","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4744AG","canonicalUrl":"https://icboms.com/microchip/1N4744AG","factsUrl":"https://icboms.com/api/mcp/products/1N4744AG","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4744AG Zener diode, 15 V nominal, ±5% tolerance, 1 W, DO-204AL (DO-41) axial-lead, through-hole, Bulk.","salesMarkdown":"## 15 V rail regulation — the parametric fit The 1N4744AG: Nominal Zener voltage is 15 V at ±5% tolerance, meaning the regulation knee lands between 14.25 V and 15.75 V — tight enough to clamp a 15 V supply rail without pulling the load below the minimum operating voltage. Rated for 1 W continuous power dissipation in the DO-41 axial package; at 15 V that translates to roughly 66 mA of Zener current before the die temperature climbs past the safe operating area at 25 °C ambient. Maximum impedance (Zzt) is 14 Ohms at the test current — a relatively low dynamic resistance for a 1 W device, which keeps the voltage regulation tight across the Zener current range. ## Temperature range and reverse leakage — bench limits Operating junction temperature spans -65 °C to +175 °C, a full military-grade range that covers cold-soak avionics and hot engine-bay environments without derating the power dissipation below the 1 W ceiling. Supplied in Bulk packaging per the standard DO-41 tape-and-ammo or loose-tube format; the axial leads are tin-plated for solderability and RoHS compliance is declared by the manufacturer.","metaTitle":"1N4744AG Zener Diode, 15 V, 1 W, DO-41, Active","metaDescription":"Microchip Technology 1N4744AG Zener diode, 15 V nominal, ±5% tolerance, 1 W power rating, DO-41 axial package. Active lifecycle, sourced to order.","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)":"14 Ohms","Operating Temperature":"-65°C ~ 175°C","Supplier Device Package":"DO-41","Voltage - Zener (Nom) (Vz)":"15 V","Current - Reverse Leakage @ Vr":"5 µA @ 11.4 V","Voltage - Forward (Vf) (Max) @ If":"1.2 V @ 200 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.1200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the 1N4744AG?","answer":"No official pin-compatible second source is recorded in the manufacturer's cross-reference data. The 1N4744AG is a standard JEDEC-registered 1N4744A in a DO-41 package; any 15 V, 1 W Zener in the same DO-204AL footprint from a qualified supplier should fit the same PCB hole pattern, but parametric verification against the BOM's tolerance and leakage requirements is recommended."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4744AG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4744AG 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}}