{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4744CP/TR12","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4744CP-TR12","canonicalUrl":"https://icboms.com/microchip/1N4744CP-TR12","factsUrl":"https://icboms.com/api/mcp/products/1N4744CP%2FTR12","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4744CP/TR12 Zener Diode, 15 V, ±2% Tolerance, 1 W, DO-204AL (DO-41) Axial, Tape & Reel.","salesMarkdown":"## 15 V regulation, 1 W dissipation The 1N4744CP/TR12 is a 15 V Zener diode in the standard DO-204AL (DO-41) axial-lead package, rated for 1 W continuous power dissipation. The ±2% tolerance on the nominal Zener voltage means the regulation point sits between 14.7 V and 15.3 V at the specified test current — tight enough for a 15 V rail feeding a linear regulator or a reference clamp in a 24 V-to-15 V local supply. ## Impedance and leakage profile Maximum Zener impedance (Zzt) is 14 Ohms at the test current — this sets the dynamic regulation slope: a 10 mA load swing shifts the output roughly 140 mV. Reverse leakage is specified at 5 µA maximum at 11.4 V, which is 76% of the nominal Zener voltage, so the diode stays well below the knee in standby. Forward voltage is 1.2 V maximum at 200 mA — a detail worth noting if the diode sees brief forward-bias events during power sequencing or reverse-polarity conditions. Microchip lists the 1N4744CP/TR12 as Active. The base product number is 1N4744; the CP/TR12 suffix denotes the ±2% tolerance grade and Tape & Reel packaging. No pin-compatible second-source is recorded, but the DO-41 footprint is a standard industry form factor shared by many 1 W Zener families.","metaTitle":"1N4744CP/TR12 Zener Diode, 15 V, 1 W, DO-41, Microchip","metaDescription":"Microchip 1N4744CP/TR12 Zener diode, 15 V nominal, ±2% tolerance, 1 W power dissipation. Active production, DO-204AL (DO-41) axial package. 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)","Tolerance":"±2%","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":"$2.1900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f2579cdb7aec091d0b5f99df5459e04c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the tolerance of the 1N4744CP/TR12 Zener voltage?","answer":"The Zener voltage tolerance is ±2%, meaning a 15 V nominal part regulates between 14.7 V and 15.3 V at the specified test current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4744CP-TR12","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4744CP-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}}