{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N5230B-TAP","brand":"Vishay","brandSlug":"vishay","productSlug":"1N5230B-TAP","canonicalUrl":"https://icboms.com/vishay/1N5230B-TAP","factsUrl":"https://icboms.com/api/mcp/products/1N5230B-TAP","rawCanonicalId":null},"summary":{"shortDescription":"Vishay 1N5230B-TAP, Automotive AEC-Q101 Zener Diode, 4.7 V nominal, 500 mW, ±5% tolerance, DO-35 axial package, 175°C junction temperature.","salesMarkdown":"## 4.7 V zener, 500 mW — the thermal budget trap The 1N5230B-TAP is a 4.7 V zener diode in the DO-35 axial package, rated for 500 mW total power dissipation. The ±5% tolerance on the zener voltage means the actual clamp point can sit between 4.465 V and 4.935 V — tight enough for most shunt regulator and protection circuits, but worth checking if your load has a narrow supply window. ## 175°C junction — where it matters The 175°C maximum operating temperature is 25°C above the standard automotive 150°C limit. That extra margin matters when the zener sits near a hot power device or in an under-hood ambient that hits 125°C. At 175°C junction, the 500 mW power rating still holds — but the reverse leakage at that temperature will be higher than the 5 µA at 2 V specified at 25°C, so budget for it in the bias network. ## AEC-Q101 — not just a sticker The AEC-Q101 qualification (Automotive, AEC-Q101 series) means this part has passed the automotive stress tests: high-temperature reverse bias, temperature cycling, and humidity. For a non-automotive design it is still a good reliability indicator — the same screening catches infant mortality that a commercial-grade zener might not. ## DO-35 axial — the layout constant Through-hole DO-35 (DO-204AH) body. The axial leads let you stand the diode upright or lay it flat against the board. The 19 ohm maximum zener impedance at the test current means the regulation slope is moderate — expect about 19 mV change in Vz per mA of current change near the test point.","metaTitle":"1N5230B-TAP Zener Diode, 4.7 V, 500 mW, AEC-Q101","metaDescription":"1N5230B-TAP Zener diode, 4.7 V nominal, 500 mW, ±5% tolerance, AEC-Q101 automotive qualified. DO-35 axial package. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q101","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"Automotive, AEC-Q101","Package":"Tape & Box (TB); Cut Tape (CT)","Tolerance":"±5%","Power - Max":"500 mW","Mounting Type":"Through Hole","Package / Case":"DO-204AH, DO-35, Axial","lifecycle_stage":"eol_hot","Impedance (Max) (Zzt)":"19 Ohms","Operating Temperature":"175°C","Supplier Device Package":"DO-35 (DO-204AH)","Voltage - Zener (Nom) (Vz)":"4.7 V","Current - Reverse Leakage @ Vr":"5 µA @ 2 V","Voltage - Forward (Vf) (Max) @ If":"1.1 V @ 200 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.24","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.24000","currency":"USD"},{"qty":10,"price":"$0.19400","currency":"USD"},{"qty":100,"price":"$0.10270","currency":"USD"},{"qty":500,"price":"$0.06758","currency":"USD"},{"qty":1000,"price":"$0.04595","currency":"USD"},{"qty":2000,"price":"$0.04145","currency":"USD"},{"qty":5000,"price":"$0.03604","currency":"USD"},{"qty":10000,"price":"$0.03063","currency":"USD"},{"qty":30000,"price":"$0.02883","currency":"USD"},{"qty":50000,"price":"$0.02805","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/44b48d0a9b244fe1da43b35a93d76a5b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 1N5230B-TAP RoHS compliant?","answer":"Yes, it is ROHS3 compliant."},{"question":"What is the difference between 1N5230B and 1N5230B-TAP?","answer":"The -TAP suffix indicates the tape-and-box packaging format for automated insertion. The bare 1N5230B is the same die and electrical specification — the difference is the shipping medium, not the silicon."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/1N5230B-TAP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/1N5230B-TAP 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}}