{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4734AUR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4734AUR","canonicalUrl":"https://icboms.com/microchip/1N4734AUR","factsUrl":"https://icboms.com/api/mcp/products/1N4734AUR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4734AUR zener diode, 5.6 V nominal, 1 W power, ±5% tolerance, DO-213AB MELF surface mount.","salesMarkdown":"## 5.6 V zener — regulation and clamping The 1N4734AUR: With a nominal zener voltage of 5.6 V and ±5% tolerance, this diode provides a stable reference for voltage regulation, overvoltage clamping, or shunt-regulator circuits. The 5.6 V point sits near the zero-temperature-coefficient knee for a zener — a common choice where temperature drift matters in the reference rail. ## DO-213AB MELF — high-reliability surface-mount package The DO-213AB MELF (Metal Electrode Leadless Face) package is a glass-passivated, cylindrical body with metallized end caps. The MELF footprint is non-standard versus SOD-123 or SOT-23 — the cylindrical body requires a specific pad layout to avoid tombstoning during reflow. Confirm the board land pattern against the Microchip application note for DO-213AB before committing the PCB. ## Parametric notes for the BOM Maximum impedance (Zzt) is 5 Ohms at the test current — this sets the dynamic resistance and influences how tightly the zener regulates under varying load current. A lower Zzt means better regulation, and 5 Ohms is typical for a 5.6 V, 1 W device in this package class. Reverse leakage is specified at 10 µA maximum at 2 V reverse bias — well below the zener threshold, confirming the diode blocks cleanly until it reaches the breakdown region. Forward voltage drop is 1.2 V maximum at 200 mA forward current — useful if the diode is occasionally forward-biased in a clamping or protection application.","metaTitle":"1N4734AUR Zener Diode, 5.6 V, 1 W, DO-213AB MELF – Microchip","metaDescription":"Microchip 1N4734AUR zener diode, 5.6 V nominal, 1 W power, ±5% tolerance, DO-213AB MELF. 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":"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":"1N4734","Impedance (Max) (Zzt)":"5 Ohms","Operating Temperature":"-65°C~175°C","Supplier Device Package":"DO-213AB","Voltage - Zener (Nom) (Vz)":"5.6 V","Current - Reverse Leakage @ Vr":"10 µA @ 2 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":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4734AUR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4734AUR 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}}