{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TZX3V0B-TR","brand":"Vishay","brandSlug":"vishay","productSlug":"TZX3V0B-TR","canonicalUrl":"https://icboms.com/vishay/TZX3V0B-TR","factsUrl":"https://icboms.com/api/mcp/products/TZX3V0B-TR","rawCanonicalId":null},"summary":{"shortDescription":"Vishay Automotive AEC-Q101 TZX series, TZX3V0B-TR, Zener Diode, 3V nominal, 500 mW, DO-35 axial package, -65°C to 175°C.","salesMarkdown":"## 3 V shunt reference for automotive and industrial bias rails The TZX3V0B-TR is a 3 V nominal zener diode rated for 500 mW continuous power dissipation in a DO-35 axial-lead package. It is part of the Vishay TZX series qualified to AEC-Q101, which means the device has passed automotive-grade stress tests including high-temperature reverse bias and temperature cycling. ## Wide temperature envelope — -65°C to 175°C The operating junction temperature range spans -65°C to 175°C, making this part suitable for under-hood automotive electronics, engine bay sensors, and industrial control modules that see sustained high ambient heat. The 175°C ceiling exceeds the 150°C typical of commercial zener diodes, so the derating curve starts later and the power handling at 125°C is higher. It is RoHS3 compliant. Sourced to order against BOM quantities through independent distribution. The maximum zener impedance (Zzt) is 100 Ohms. This sets the dynamic resistance at the test current; a higher Zzt means the clamp voltage shifts more with load current, so the 3 V nominal rail will droop under pulsed loads. The reverse leakage current is specified at 5 µA maximum at 500 mV reverse voltage — well below the Vz, confirming the junction blocks cleanly before breakdown. ## Forward voltage spec for reverse-polarity protection The forward voltage is 1.5 V maximum at 200 mA forward current. If the diode is used as a reverse-polarity protection element in series with the supply, the 1.5 V drop at 200 mA means the forward power dissipation must be factored into the thermal budget alongside the zener clamping loss.","metaTitle":"TZX3V0B-TR Zener Diode 3V 500mW AEC-Q101 DO-35","metaDescription":"Vishay TZX3V0B-TR Zener Diode, 3V nominal, 500 mW, DO-35 axial package, AEC-Q101 qualified, -65°C to 175°C. Active, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q101, TZX","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"Automotive, AEC-Q101, TZX","Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"500 mW","Mounting Type":"Through Hole","Package / Case":"DO-204AH, DO-35, Axial","lifecycle_stage":"eol_hot","Impedance (Max) (Zzt)":"100 Ohms","Operating Temperature":"-65°C ~ 175°C","Supplier Device Package":"DO-35 (DO-204AH)","Voltage - Zener (Nom) (Vz)":"3 V","Current - Reverse Leakage @ Vr":"5 µA @ 500 mV","Voltage - Forward (Vf) (Max) @ If":"1.5 V @ 200 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.20000","currency":"USD"},{"qty":10,"price":"$0.18100","currency":"USD"},{"qty":100,"price":"$0.09850","currency":"USD"},{"qty":500,"price":"$0.06064","currency":"USD"},{"qty":1000,"price":"$0.04134","currency":"USD"},{"qty":2000,"price":"$0.03514","currency":"USD"},{"qty":5000,"price":"$0.03169","currency":"USD"},{"qty":10000,"price":"$0.02756","currency":"USD"},{"qty":30000,"price":"$0.02480","currency":"USD"},{"qty":50000,"price":"$0.02205","currency":"USD"},{"qty":100000,"price":"$0.02145","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/668cdfdf690a78feab326d6b00387bb5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can I use TZX3V0B-TR as a 3V voltage regulator?","answer":"A zener diode provides a crude shunt reference, not a regulated output. The 3 V clamp voltage shifts with current due to the 100 Ohm maximum Zzt impedance, and the 500 mW power limit restricts the load current to about 165 mA at 3 V before the part exceeds its thermal rating at 25°C. For a precision 3 V rail, a dedicated shunt or series regulator is preferred."},{"question":"What is the closest pin-compatible alternative to TZX3V0B-TR in this component family?","answer":"The TZX series includes multiple voltage options in the same DO-35 package and 500 mW rating. A direct voltage alternative would be any other TZX series zener at the desired Vz — for example, TZX2V7B-TR or TZX3V3B-TR — all sharing the same footprint, power rating, and AEC-Q101 qualification."},{"question":"Is TZX3V0B-TR RoHS compliant?","answer":"Yes, it is listed as ROHS3 Compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/TZX3V0B-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/TZX3V0B-TR 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}}