{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4737CPE3/TR12","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4737CPE3-TR12","canonicalUrl":"https://icboms.com/microchip/1N4737CPE3-TR12","factsUrl":"https://icboms.com/api/mcp/products/1N4737CPE3%2FTR12","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4737CPE3/TR12 Zener Diode, 7.5 V, ±2% tolerance, 1 W, DO-204AL (DO-41) Axial, Tape & Reel.","salesMarkdown":"## 7.5 V regulation with ±2% precision The 1N4737CPE3/TR12 is a 7.5 V zener diode from Microchip Technology, part of the 1N4737 family. Its ±2% tolerance means the actual zener voltage sits between 7.35 V and 7.65 V at the specified test current — tight enough for reference rails and clamp circuits where a standard ±5% part would drift outside the regulation window. Rated for 1 W continuous power dissipation in the DO-204AL (DO-41) axial package, this diode handles steady-state shunt regulation up to that limit. The 4 Ohm maximum zener impedance (Zzt) at the operating point keeps the voltage shift under load small — a 10 mA change in bias current shifts the output by about 40 mV. ## Thermal and electrical margins Reverse leakage is 10 µA maximum at 5 V reverse voltage — low enough to avoid loading the circuit when the zener is not conducting. Forward voltage is 1.2 V maximum at 200 mA forward current, typical for a silicon junction of this die size. The DO-41 body with 0.025-inch diameter leads fits standard 1 mm diameter PCB holes and mates with axial-lead sockets for field replacement.","metaTitle":"Microchip 1N4737CPE3/TR12 Zener Diode, 7.5 V, 1 W, DO-41","metaDescription":"Microchip 1N4737CPE3/TR12 zener diode, 7.5 V nominal, ±2% tolerance, 1 W power dissipation, DO-204AL (DO-41) axial package. Active production, 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":"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":"1N4737","Impedance (Max) (Zzt)":"4 Ohms","Operating Temperature":"-65°C~150°C","Supplier Device Package":"DO-204AL (DO-41)","Voltage - Zener (Nom) (Vz)":"7.5 V","Current - Reverse Leakage @ Vr":"10 µA @ 5 V","Voltage - Forward (Vf) (Max) @ If":"1.2 V @ 200 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f2579cdb7aec091d0b5f99df5459e04c.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4737CPE3-TR12","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4737CPE3-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}}