{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4744APE3/TR12","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4744APE3-TR12","canonicalUrl":"https://icboms.com/microchip/1N4744APE3-TR12","factsUrl":"https://icboms.com/api/mcp/products/1N4744APE3%2FTR12","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4744APE3/TR12 zener diode, 15 V nominal, ±5% tolerance, 1 W power dissipation, DO-204AL (DO-41) axial package, tape and reel.","salesMarkdown":"The 1N4744APE3/TR12 is a 15 V zener diode from Microchip Technology, rated for 1 W continuous power dissipation in a DO-204AL (DO-41) axial-lead package. The ±5% tolerance band means the actual zener voltage at 25 °C falls between 14.25 V and 15.75 V — tight enough for most 15 V shunt regulation or voltage-clamping tasks where a precision reference is not required. Maximum zener impedance is 14 Ohms (Zzt at the test current). This impedance governs how much the zener voltage shifts with current — a 10 mA change in zener current shifts the output by roughly 140 mV. For a shunt regulator feeding a constant load, that is within the ±5% tolerance; for a variable load, the dynamic impedance adds to the regulation error budget. ## Temperature range and reverse leakage — the operating envelope Reverse leakage is specified at 5 µA maximum when 11.4 V is applied across the junction — this is the leakage at 76 % of the nominal zener voltage, well below the breakdown knee, so the diode draws negligible current in the off state. Forward voltage drop is 1.2 V maximum at 200 mA forward current. If the part is used in a bidirectional clamping circuit or as a rectifier, this forward drop adds to the conduction loss budget. ## Active production — sourcing for the BOM line The tape-and-reel packaging (TR suffix) indicates it is supplied on a reel for automated pick-and-place assembly, though the DO-41 axial body is typically hand-inserted or formed for through-hole insertion — the reel format suits high-volume board assembly houses that handle axial components.","metaTitle":"1N4744APE3/TR12 Zener Diode, 15 V, 1 W, DO-41","metaDescription":"Microchip Technology 1N4744APE3/TR12 zener diode, 15 V nominal, ±5% tolerance, 1 W power dissipation, DO-204AL (DO-41) axial package, active production.","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","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":"$0.9150","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f2579cdb7aec091d0b5f99df5459e04c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the 1N4744APE3/TR12 come in?","answer":"The 1N4744APE3/TR12 is supplied in a DO-204AL (DO-41) axial-lead through-hole package. The /TR12 suffix denotes tape-and-reel packaging, suitable for automated assembly handling of axial components."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4744APE3-TR12","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4744APE3-TR12 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}}