{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4729AUR/TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4729AUR-TR","canonicalUrl":"https://icboms.com/microchip/1N4729AUR-TR","factsUrl":"https://icboms.com/api/mcp/products/1N4729AUR%2FTR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4729AUR/TR Zener diode, 3.6 V, ±5% tolerance, 1 W, DO-213AB MELF (glass), surface mount, Tape & Reel.","salesMarkdown":"## 3.6 V Zener in a hermetic MELF The 1N4729AUR/TR is a 3.6 V Zener diode in a DO-213AB MELF (glass) package, rated for 1 W continuous power dissipation. With ±5% tolerance on the Zener voltage, it is a standard-regulation part — tight enough for rail clamping or simple shunt regulation, not a precision reference. The 10 Ω maximum impedance (Zzt) means the regulation slope is moderate; at the test current, the output voltage shifts about 10 mV per mA of load change. ## Surface-mount fit and handling The DO-213AB MELF is a cylindrical, end-capped package — it reflows like a standard SMD but rolls if the paste is uneven. On the board, the metallized ends are the anode and cathode; orientation is marked by a band on the cathode end. The package footprint matches a standard MELF-LL41 land pattern, and the glass body handles standard reflow profiles without moisture sensitivity (MSL 1).","metaTitle":"Microchip 1N4729AUR/TR Zener Diode, 3.6 V, 1 W","metaDescription":"Active 1N4729AUR/TR Zener diode from Microchip Technology, 3.6 V ±5%, 1 W, DO-213AB MELF glass package, -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":"Tape & Reel (TR) Cut Tape (CT)","Tolerance":"±5%","Power - Max":"1 W","Mounting Type":"Surface Mount","Package / Case":"DO-213AB, MELF (Glass)","Product Status":"Active","lifecycle_stage":"eol_hot","Impedance (Max) (Zzt)":"10 Ohms","Operating Temperature":"-65°C ~ 175°C","Supplier Device Package":"DO-213AB (MELF, LL41)","Voltage - Zener (Nom) (Vz)":"3.6 V","Current - Reverse Leakage @ Vr":"100 µA @ 1 V","Voltage - Forward (Vf) (Max) @ If":"1.2 V @ 200 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.3700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a0251be6a72aede31ddcae209e0fcbbb.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N4729AUR%2FTR/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 1N4729AUR/TR and how is it quoted for volume purchases?","answer":"The 1N4729AUR/TR is supplied by Microchip Technology and is available through authorized and independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4729AUR-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4729AUR-TR 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}}