{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6342US/TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6342US-TR","canonicalUrl":"https://icboms.com/microchip/1N6342US-TR","factsUrl":"https://icboms.com/api/mcp/products/1N6342US%2FTR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6342US/TR Zener Diode, 56 V nominal, 500 mW, ±5% tolerance, SQ-MELF B package, Tape & Reel.","salesMarkdown":"## 56 V zener in hermetic SQ-MELF — active and available The 1N6342US/TR is a 56 V zener diode from Microchip Technology in a hermetic SQ-MELF (B) package, rated for 500 mW continuous power dissipation. The ±5% tolerance covers the standard regulation band for general-purpose voltage clamping and reference applications. ## Thermal and leakage profile for harsh environments The -65°C to 175°C operating temperature range qualifies the 1N6342US/TR for military, aerospace, and downhole applications where commercial-grade zeners fail. The hermetic SQ-MELF package seals the die against moisture and thermal cycling — no conformal coat needed for the diode itself. Reverse leakage is specified at 50 nA maximum at 43 V reverse voltage — a low-leakage figure for a 56 V device, which matters when the zener sits across a high-impedance node like an op-amp supply or a precision reference. The maximum zener impedance (Zzt) is 100 Ohms, which sets the regulation slope: at low bias current the output voltage shifts more per mA than a lower-impedance part. Forward voltage is 1.4 V maximum at 1 A — the diode can conduct forward current for transient clamping, though the 500 mW power limit governs continuous duty. ## Tape & Reel — surface-mount assembly ready Supplied in Tape & Reel (TR) packaging, the 1N6342US/TR feeds directly into pick-and-place lines. The SQ-MELF footprint is a standard surface-mount package with a cylindrical body and end-cap terminations — the same land pattern as other MELF diodes, so no board spin if replacing a similar device.","metaTitle":"Microchip 1N6342US/TR Zener Diode, 56 V, 500 mW, SQ-MELF","metaDescription":"Active 56 V zener diode in hermetic SQ-MELF package. 500 mW, ±5% tolerance, -65°C to 175°C. Quoted to order against RFQ.","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)":"100 Ohms","Operating Temperature":"-65°C ~ 175°C (TJ)","Supplier Device Package":"B, SQ-MELF","Voltage - Zener (Nom) (Vz)":"56 V","Current - Reverse Leakage @ Vr":"50 nA @ 43 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/1N6342US%2FTR/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance and power rating for 1N6342US/TR?","answer":"Tolerance is ±5%, and maximum power dissipation is 500 mW."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6342US-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6342US-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}}