{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6028A","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6028A","canonicalUrl":"https://icboms.com/microchip/1N6028A","factsUrl":"https://icboms.com/api/mcp/products/1N6028A","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6028A Zener diode, 150 V nominal, 500 mW, ±10% tolerance, DO-35 axial package, -65°C to 175°C.","salesMarkdown":"The 1N6028A is a 150 V Zener diode from Microchip Technology, rated for 500 mW continuous power dissipation in the standard DO-35 axial package. The 150 V nominal breakdown point suits it for regulating higher-voltage rails — think 120 VDC bus clamping or series-stacked Zener references — where a lower-voltage part would avalanche prematurely. With ±10% tolerance on the Zener voltage, the actual breakdown sits between 135 V and 165 V. That spread is typical for general-purpose regulation; if your design needs tighter control, a ±5% or ±2% grade would be the next step up. Maximum Zener impedance is 1700 Ohms at the test current — a relatively high value that means the regulation voltage shifts more with load current than a lower-impedance Zener would. For circuits drawing a few milliamps, the voltage drop across Zzt stays manageable; for higher-current loads, the output will sag noticeably. ## Through-hole assembly and temperature range No MSL concern — the glass-passivated die is hermetic, so it skips the moisture bake that plastic packages require before reflow. The 500 mW power limit is derated linearly above 25°C; at 175°C the allowable dissipation drops to near zero, so keep the lead length short and the ambient airflow reasonable if you are running near the power ceiling. ## Leakage and forward characteristics Reverse leakage is specified at 100 nA maximum when 91 V is applied across the junction — that is 60% of the nominal Zener voltage, so the diode stays well into the off region before breakdown. For high-impedance bias networks or sample-and-hold circuits, this low leakage means the stored charge bleeds off slowly. Forward voltage is 1.1 V maximum at 200 mA forward current. That makes the 1N6028A usable as a general-purpose rectifier or clamping diode in a pinch, though its primary role remains Zener regulation.","metaTitle":"Microchip 1N6028A Zener Diode, 150 V, 500 mW, DO-35","metaDescription":"1N6028A Zener diode from Microchip Technology, 150 V nominal, 500 mW, ±10% tolerance, DO-35 axial. Active production. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Microchip Technology","Series":"-","Package":"Bulk","Tolerance":"±10%","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":"1N6028","Impedance (Max) (Zzt)":"1700 Ohms","Operating Temperature":"-65°C ~ 175°C","Supplier Device Package":"DO-35","Voltage - Zener (Nom) (Vz)":"150 V","Current - Reverse Leakage @ Vr":"100 nA @ 91 V","Voltage - Forward (Vf) (Max) @ If":"1.1 V @ 200 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.2500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/87171d2e12030478252c3bb19e7c6e91.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6028A/alternatives.json"},"ai":{"faq":[{"question":"What tolerance does the 1N6028A offer on its Zener voltage?","answer":"The 1N6028A has a ±10% tolerance on the nominal 150 V Zener voltage. The actual breakdown voltage for any given unit falls between 135 V and 165 V."},{"question":"What is the reverse leakage current of the 1N6028A?","answer":"Maximum reverse leakage is 100 nA when 91 V is applied. This low leakage makes the diode suitable for high-impedance circuits where charge bleed-off must be minimal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6028A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6028A 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}}