{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4744AG/TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4744AG-TR","canonicalUrl":"https://icboms.com/microchip/1N4744AG-TR","factsUrl":"https://icboms.com/api/mcp/products/1N4744AG%2FTR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4744AG/TR Zener Diode, 15 V, ±5% Tolerance, 1 W, DO-204AL (DO-41) Axial, Through Hole, Tape & Reel.","salesMarkdown":"The 1N4744AG/TR: That means the BOM line stays stable for new builds and replacement orders alike, without the sourcing scramble that comes with an obsolete zener. ## Zener voltage, tolerance, and power — the fit decisions The nominal zener voltage is 15 V at ±5 % tolerance, so the actual clamping window sits between 14.25 V and 15.75 V — tight enough to protect a 16 V rail without eating into the operating margin. 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 hitting the thermal ceiling — a solid guard for low-power shunt regulation or overvoltage clamping on a 12 V bus. ## Package and board-fit — DO-41 axial leaded Supplied in Tape & Reel (TR) for automated insertion, but the part itself is a standard through-hole DO-204AL (DO-41) axial-lead diode. The 0.034-inch lead diameter fits common 0.040-inch plated-through holes on single-layer or double-layer boards. ## Additional parametric details for circuit design Maximum zener impedance (Zzt) is 14 Ohms — a moderate dynamic resistance that keeps the voltage regulation within a few hundred millivolts under varying load current. Reverse leakage is specified at 5 µA maximum with 11.4 V applied across the junction — low enough that it won't drain a battery-backed rail or skew a precision bias network. Forward voltage is 1.2 V maximum at 200 mA forward current — typical for a 1 W silicon diode when conducting in the forward direction.","metaTitle":"1N4744AG/TR Zener Diode, 15 V, 1 W, DO-41, Microchip","metaDescription":"Microchip 1N4744AG/TR zener diode, 15 V nominal, ±5% tolerance, 1 W power, DO-41 axial package. Active production, sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Microchip Technology","Series":"-","Package":"Tape & Reel (TR)","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":"$3.2900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"How can I get current pricing and availability for 1N4744AG/TR?","answer":"We source the 1N4744AG/TR through independent distribution channels. Submit an RFQ with your target quantity; we confirm current pricing and availability at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4744AG-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4744AG-TR 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}}