{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6311","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6311","canonicalUrl":"https://icboms.com/microchip/1N6311","factsUrl":"https://icboms.com/api/mcp/products/1N6311","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6311 Zener diode, 3 V nominal, 500 mW, ±5% tolerance, DO-204AH (DO-35) axial package, through-hole mount.","salesMarkdown":"## 3 V Zener — what the ratings mean on the bench The 1N6311: Nominal Zener voltage is 3 V at ±5% tolerance — tight enough for a reference rail in a low-voltage regulator or a protection clamp on a 3.3 V logic input. Rated for 500 mW continuous dissipation in the DO-35 axial package; at 3 V that works out to roughly 167 mA maximum Zener current, but the real limit is the junction temperature — the -65°C to 175°C operating range gives plenty of headroom in an industrial or automotive environment. Max impedance (Zzt) is 29 Ohms at the test current — a stiffer reference than a higher-voltage Zener in the same series, which matters when the load draws a few mA. ## Package and field-fit DO-204AH (DO-35) glass axial package, through-hole mount — the same footprint as a 1N4148 signal diode, so it drops into an existing board layout without a pad change. Reverse leakage is 30 µA max at 1 V reverse — low enough that it won't pull down a high-impedance node in a battery-powered circuit. Forward voltage is 1.4 V max at 1 A — not a rectifier, but the spec confirms the die can handle brief forward current without damage if the diode is accidentally reverse-biased.","metaTitle":"1N6311 Zener Diode, 3 V, 500 mW, DO-35, Microchip","metaDescription":"Microchip 1N6311 Zener diode, 3 V nominal, 500 mW, ±5% tolerance, DO-35 axial package. Active production. 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":"500 mW","Mounting Type":"Through Hole","Package / Case":"DO-204AH, DO-35, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"1N6311","Impedance (Max) (Zzt)":"29 Ohms","Operating Temperature":"-65°C~175°C","Supplier Device Package":"DO-35","Voltage - Zener (Nom) (Vz)":"3 V","Current - Reverse Leakage @ Vr":"30 µA @ 1 V","Voltage - Forward (Vf) (Max) @ If":"1.4 V @ 1 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.0850","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f6c06256cea906d2cfe466171434be29.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6311/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6311","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6311 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}}