{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4744AP/TR8","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4744AP-TR8","canonicalUrl":"https://icboms.com/microchip/1N4744AP-TR8","factsUrl":"https://icboms.com/api/mcp/products/1N4744AP%2FTR8","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4744AP/TR8 Zener Diode, 15 V Nominal, 1 W, ±5% Tolerance, DO-204AL (DO-41) Axial Package, Tape & Reel.","salesMarkdown":"## 15 V regulation, 1 W dissipation — the rail clamp for a 12 V bus Microchip Technology's 1N4744AP/TR8 is a 15 V Zener diode in the standard DO-204AL (DO-41) axial-lead package, rated for 1 W continuous power dissipation. The ±5% tolerance on the nominal 15 V breakdown means the actual clamping voltage falls between 14.25 V and 15.75 V at the specified test current — tight enough to protect a 12 V rail from transients without eating into the operating margin. ## Active production — sourced per RFQ This part carries an active lifecycle status from Microchip Technology. ## Dynamic impedance and leakage — the real-world guard bands Maximum Zener impedance (Zzt) is 14 Ohms at the knee — this is the incremental resistance the regulator sees; a higher load current through the diode raises the voltage drop across this impedance, shifting the clamp point slightly above 15 V. Reverse leakage is specified at 5 µA maximum at 11.4 V, so the diode draws negligible current below the breakdown region, preserving battery life in a standby shunt regulator. ## Temperature range and forward drop Forward voltage is 1.2 V maximum at 200 mA — relevant if the diode sees brief forward conduction in an AC or reverse-polarity condition.","metaTitle":"1N4744AP/TR8 Zener Diode, 15 V, 1 W, DO-41, Microchip","metaDescription":"Microchip 1N4744AP/TR8 15 V Zener diode, 1 W power dissipation, ±5% tolerance, DO-204AL (DO-41) axial package. Active production, sourced per RFQ.","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); Cut Tape (CT)","Tolerance":"±5%","Power - Max":"1 W","Mounting Type":"Through Hole","Package / Case":"DO-204AL, DO-41, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"1N4744","Impedance (Max) (Zzt)":"14 Ohms","Operating Temperature":"-65°C~150°C","Supplier Device Package":"DO-204AL (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":"$1.8150","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5f236ca5540da5bdb84674abb4a197c3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the tolerance on the 1N4744AP/TR8?","answer":"The Zener voltage tolerance is ±5% on the nominal 15 V rating. That means a specific unit's breakdown voltage will measure between 14.25 V and 15.75 V at the specified test current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4744AP-TR8","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4744AP-TR8 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}}