{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6327DUS/TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6327DUS-TR","canonicalUrl":"https://icboms.com/microchip/1N6327DUS-TR","factsUrl":"https://icboms.com/api/mcp/products/1N6327DUS%2FTR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6327DUS/TR Zener Diode, 13 V Nominal, ±1% Tolerance, 500 mW, 8 Ohms Max Impedance, SQ-MELF B Package, Tape & Reel.","salesMarkdown":"## 13 V regulation in a hermetic MELF The 1N6327DUS/TR is a 13 V zener diode from Microchip Technology, rated for 500 mW continuous power dissipation in a hermetic SQ-MELF B surface-mount package. The ±1% tolerance on the nominal zener voltage means the regulation window is tighter than a standard 5% zener — the output rail stays within 130 mV of 13 V across the operating current range, which matters for precision bias supplies or ADC reference circuits. The 8 Ohm maximum zener impedance (Zzt) at the test current sets the dynamic regulation: a 10 mA change in zener current shifts the voltage by 80 mV worst-case. For a load that draws 5–15 mA, the output stays within 80 mV of 13 V without an external pass element. Reverse leakage is specified at 50 nA maximum when the applied voltage is 9.9 V — 3.1 V below the zener knee. In a battery-powered circuit where the zener sits across the rail as a clamp, this leakage adds less than 0.5 µW of standby loss at room temperature. The forward voltage is 1.4 V maximum at 1 A forward current — the diode conducts in the forward quadrant with a drop comparable to a standard signal diode, useful if the part also serves as reverse-polarity protection in a low-current path. ## Package and temperature range The SQ-MELF B package is a hermetic, ceramic-bodied surface-mount form factor with metallized end caps — it seals the die against moisture and outgassing, making it suitable for high-reliability, aerospace, or downhole applications where a plastic SOT-23 or SOD-123 would not survive. The 500 mW power rating must be derated above 25°C ambient per the thermal resistance of the board footprint.","metaTitle":"Microchip 1N6327DUS/TR Zener Diode, 13 V, 500 mW, SQ-MELF","metaDescription":"13 V zener diode in hermetic SQ-MELF B package, ±1% tolerance, 500 mW power dissipation, -65°C to 175°C range. Active production from Microchip.","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":"±1%","Power - Max":"500 mW","Mounting Type":"Surface Mount","Package / Case":"SQ-MELF, B","Product Status":"Active","lifecycle_stage":"eol_hot","Impedance (Max) (Zzt)":"8 Ohms","Operating Temperature":"-65°C ~ 175°C (TJ)","Supplier Device Package":"B, SQ-MELF","Voltage - Zener (Nom) (Vz)":"13 V","Current - Reverse Leakage @ Vr":"50 nA @ 9.9 V","Voltage - Forward (Vf) (Max) @ If":"1.4 V @ 1 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$31.8601","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/950a1a5ef1d17a0e9b75efb616fa4721.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6327DUS%2FTR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6327DUS-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6327DUS-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}}