{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4737AUR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4737AUR","canonicalUrl":"https://icboms.com/microchip/1N4737AUR","factsUrl":"https://icboms.com/api/mcp/products/1N4737AUR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4737AUR zener diode, 7.5 V nominal, ±5% tolerance, 1 W, DO-213AB MELF surface-mount package, -65°C to 175°C operating range.","salesMarkdown":"## 7.5 V zener — the key parametric The 1N4737AUR: The nominal zener voltage is 7.5 V with a ±5% tolerance, so the regulation window spans roughly 7.125 V to 7.875 V. This is the figure that determines the clamping threshold or reference voltage in the circuit — the 4 Ohm maximum impedance (Zzt) at the test current keeps the voltage stable under load. Rated for 1 W continuous power dissipation in the DO-213AB MELF package. The -65°C to 175°C operating temperature range covers military and aerospace temperature extremes — the junction-to-ambient thermal path depends on the board copper area under the MELF body. Supplied in Bulk, surface-mount DO-213AB (MELF) package. The cylindrical body requires a solder-paste stencil aperture sized to the metallized band ends — standard pick-and-place equipment handles the MELF form factor, but the footprint differs from a SOD-123 or SOT-23 zener.","metaTitle":"Microchip 1N4737AUR Zener Diode, 7.5 V, 1 W, DO-213AB MELF","metaDescription":"Active production — Microchip 1N4737AUR zener diode, 7.5 V nominal, ±5% tolerance, 1 W, DO-213AB MELF, -65°C to 175°C. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Microchip Technology","Series":"-","Package":"Bulk","Tolerance":"±5%","Power - Max":"1 W","Mounting Type":"Surface Mount","Package / Case":"DO-213AB, MELF","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"1N4737","Impedance (Max) (Zzt)":"4 Ohms","Operating Temperature":"-65°C~175°C","Supplier Device Package":"DO-213AB","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":"$3.3300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bc4f081abf264e3fbd0ed0846e93ec3c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1N4737AUR in this Discrete Semiconductors family?","answer":"No official pin-compatible alternative or second-source is recorded for the 1N4737AUR. The base product number 1N4737 covers multiple package variants (axial-lead, MELF); the DO-213AB MELF package is specific to the AUR suffix."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4737AUR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4737AUR 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}}