{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HZ12HB1","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"HZ12HB1","canonicalUrl":"https://icboms.com/renesas/HZ12HB1","factsUrl":"https://icboms.com/api/mcp/products/HZ12HB1","rawCanonicalId":null},"summary":{"shortDescription":"HZ12HB1 Zener diode, 0.5W power dissipation, Bulk package, Active lifecycle, ROHS3 compliant.","salesMarkdown":"## 0.5W Zener — the power rating that sets the current ceiling The HZ12HB1 is a 0.5W Zener diode, meaning the maximum power it can dissipate in shunt regulation or clamping is half a watt. For a given Zener voltage, this sets the maximum continuous current: at 12 V, that's about 42 mA; at 5 V, about 100 mA. If your circuit needs to sink more current than that, you need a higher-power Zener or a different regulation scheme. ## What the voltage rating is — and isn't The available specifications for the HZ12HB1 list it as a 0.5W Zener diode, but they do not state the Zener voltage. If your BOM requires a specific Zener voltage, you will need to verify this against the manufacturer's datasheet or markings on the part before committing the line.","metaTitle":"HZ12HB1 Zener Diode, 0.5W, Active, Bulk Package","metaDescription":"HZ12HB1 Zener diode rated 0.5W. Active lifecycle, ROHS3 compliant. Bulk package. Voltage rating not listed in available specs.","metaKeywords":null},"attributes":{"series":"*","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"*","Package":"Bulk","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.24","stockQuantity":0,"priceTiers":[{"qty":1256,"price":"$0.24000","currency":"USD"}]},"links":{"datasheetUrl":"https://rocelec.widen.net/view/pdf/qvaszbohx2/RNCCS08551-1.pdf?t.download=true&u=5oefqw","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/HZ12HB1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/HZ12HB1 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}}