{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6319US/TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6319US-TR","canonicalUrl":"https://icboms.com/microchip/1N6319US-TR","factsUrl":"https://icboms.com/api/mcp/products/1N6319US%2FTR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6319US/TR Zener Diode, 6.2 V, 500 mW, ±5% Tolerance, 3 Ohms Impedance, SQ-MELF B Package, Tape & Reel.","salesMarkdown":"## Zener regulation at 6.2 V, 500 mW, in a hermetic MELF The 1N6319US/TR is a 6.2 V Zener diode rated for 500 mW continuous power dissipation, housed in a surface-mount SQ-MELF B package — a hermetic, glass-passivated ceramic body that handles the -65°C to 175°C junction temperature range without moisture ingress. Maximum Zener impedance is 3 Ohms at the test current, and reverse leakage is held to 5 µA at 3.5 V — both figures that tell you the regulation knee is tight enough for a 6.2 V rail that needs to stay within ±5% over temperature. ## Hermetic MELF package for harsh environments The SQ-MELF B (also called a DO-213AB outline) is a cylindrical, end-capped ceramic package with metallized bands — it is inherently hermetic and survives thermal cycling from -65°C to 175°C, making it a common choice for avionics, downhole instrumentation, and military-grade power supplies where a plastic SMD package would delaminate. Supplied on Tape & Reel for pick-and-place assembly; the cylindrical body needs a flat solder-paste deposit on the board to avoid tombstoning during reflow. No direct pin-compatible second source is listed on the manufacturer's cross-reference; the SQ-MELF B footprint is specific to hermetic Zener diodes, so a board-level substitution would require a package change.","metaTitle":"1N6319US/TR Zener Diode, 6.2 V, 500 mW, SQ-MELF","metaDescription":"Microchip Technology 1N6319US/TR Zener diode, 6.2 V nominal, 500 mW, ±5% tolerance, 3 Ohm impedance, SQ-MELF B package, active production, available 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)","Tolerance":"±5%","Power - Max":"500 mW","Mounting Type":"Surface Mount","Package / Case":"SQ-MELF, B","Product Status":"Active","lifecycle_stage":"eol_hot","Impedance (Max) (Zzt)":"3 Ohms","Operating Temperature":"-65°C ~ 175°C (TJ)","Supplier Device Package":"B, SQ-MELF","Voltage - Zener (Nom) (Vz)":"6.2 V","Current - Reverse Leakage @ Vr":"5 µA @ 3.5 V","Voltage - Forward (Vf) (Max) @ If":"1.4 V @ 1 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.8400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/950a1a5ef1d17a0e9b75efb616fa4721.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6319US%2FTR/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for the 1N6319US/TR?","answer":"Submit an RFQ through this listing — the part is sourced to order through authorized distribution, and a confirmed price and lead time will be returned for your quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6319US-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6319US-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}}