{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6309US","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6309US","canonicalUrl":"https://icboms.com/microchip/1N6309US","factsUrl":"https://icboms.com/api/mcp/products/1N6309US","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6309US Zener diode, 2.4 V nominal, 500 mW, ±5% tolerance, SQ-MELF surface mount, -65°C~175°C.","salesMarkdown":"## 2.4 V regulation in a hermetic surface-mount package The 1N6309US is a 2.4 V Zener diode rated for 500 mW continuous power dissipation in a hermetic SQ-MELF package. The 2.4 V nominal voltage at 30 Ohms maximum impedance means the output shifts about 30 mV per mA of load current change — a consideration when this diode sets a reference rail for a low-current bias or clamps a signal line just above ground. The SQ-MELF (B) body is a surface-mount ceramic package with metallized end caps, designed for high-reliability soldering and good thermal conduction to the board. The -65°C to 175°C operating range covers military/aerospace temperature excursions and downhole or engine-bay thermal profiles. Reverse leakage is specified at 100 µA maximum when 1 V is applied across the junction. At 2.4 V the leakage will be higher — the Zener knee is soft at this low voltage, so the leakage current at the regulation point is not the 100 µA figure but the current needed to reach 2.4 V, which is typically a few mA. The 1.4 V forward drop at 1 A forward current confirms this diode can also serve as a general-purpose rectifier in a pinch, though the 500 mW power limit restricts continuous forward duty.","metaTitle":"Microchip 1N6309US Zener Diode, 2.4 V, 500 mW, SQ-MELF","metaDescription":"Microchip Technology 1N6309US Zener diode, 2.4 V nominal, 500 mW, ±5% tolerance, SQ-MELF surface mount. 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":"500 mW","Mounting Type":"Surface Mount","Package / Case":"SQ-MELF, B","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"1N6309","Impedance (Max) (Zzt)":"30 Ohms","Operating Temperature":"-65°C~175°C","Supplier Device Package":"B, SQ-MELF","Voltage - Zener (Nom) (Vz)":"2.4 V","Current - Reverse Leakage @ Vr":"100 µA @ 1 V","Voltage - Forward (Vf) (Max) @ If":"1.4 V @ 1 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.0700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/950a1a5ef1d17a0e9b75efb616fa4721.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6309US/alternatives.json"},"ai":{"faq":[{"question":"What is the 1N6309US used for?","answer":"This is a 2.4 V Zener diode rated for 500 mW in a hermetic SQ-MELF package. Typical applications include voltage reference, overvoltage clamping, and signal limiting in circuits that need a stable low-voltage rail or protection against transients, especially in harsh environments where the wide -65°C to 175°C temperature range matters."},{"question":"What is the tolerance and impedance of the 1N6309US?","answer":"The Zener voltage tolerance is ±5%, and the maximum Zener impedance (Zzt) is 30 Ohms. The 30 Ohm impedance means the output voltage shifts about 30 mV per mA of load current change, which is typical for a 2.4 V Zener operating near its knee."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6309US","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6309US 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}}