{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HZ30CPTN-E","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"HZ30CPTN-E","canonicalUrl":"https://icboms.com/renesas/HZ30CPTN-E","factsUrl":"https://icboms.com/api/mcp/products/HZ30CPTN-E","rawCanonicalId":null},"summary":{"shortDescription":"HZ series Zener diode, 30 V nominal, 1 W, DO-35 axial, ±6.67% tolerance, 175°C junction temperature, through-hole mounting.","salesMarkdown":"## Package and mounting The HZ30CPTN-E is a 30 V Zener diode from the HZ series, rated for 1 W continuous power dissipation in a DO-35 axial-lead package. It clamps or regulates at 30 V nominal with a ±6.67% tolerance — tight enough for most 24 V rail overvoltage protection or as a shunt reference in low-current bias circuits. ## Junction temperature and derating That extra headroom matters when the diode sits near a hot transformer or in a sealed enclosure — the 1 W power limit applies at 25 °C ambient; at 100 °C you'll need to derate to roughly 0.6 W to stay inside the junction limit. ## Reverse leakage and impedance Reverse leakage is specified at 10 µA maximum with 23 V reverse applied — that's 7 V below the Zener knee, so the diode stays off cleanly on a 24 V rail. The maximum Zener impedance is 18 Ω at the test current; a higher impedance means the regulation slope is softer, so for a precision reference you'd parallel it with a lower-impedance part or buffer it with an op-amp. ## Sourcing and lifecycle The DO-35 axial package is a standard through-hole footprint, so it fits existing PCB layouts without a board spin.","metaTitle":"HZ30CPTN-E Zener Diode, 30 V, 1 W, DO-35, Active","metaDescription":"HZ30CPTN-E 30 V Zener diode in DO-35 axial package, 1 W power dissipation, ±6.67% tolerance, 175°C junction temp.","metaKeywords":null},"attributes":{"series":"HZ","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":[],"specifications":{"Series":"HZ","Package":"Bulk","Tolerance":"±6.67%","Power - Max":"1 W","Mounting Type":"Through Hole","Package / Case":"DO-204AH, DO-35, Axial","lifecycle_stage":"eol_hot","Impedance (Max) (Zzt)":"18 Ohms","Operating Temperature":"175°C (TJ)","Supplier Device Package":"DO-35","Voltage - Zener (Nom) (Vz)":"30 V","Current - Reverse Leakage @ Vr":"10 µA @ 23 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.17","stockQuantity":0,"priceTiers":[{"qty":1758,"price":"$0.17000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/894888660f7e6e8bc627041d173e0812.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is HZ30CPTN-E a drop-in replacement for 1N4750 or similar DO-35 Zener diodes?","answer":"The HZ30CPTN-E is a 30 V, 1 W Zener in a DO-35 package, same as the 1N4750. The 1N4750 is also 30 V at 1 W, so electrically it is a functional match. Confirm the tolerance band (±6.67% for this part) and the reverse leakage spec against your circuit's requirements before committing the BOM line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/HZ30CPTN-E","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/HZ30CPTN-E when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}