{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4733APE3/TR12","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4733APE3-TR12","canonicalUrl":"https://icboms.com/microchip/1N4733APE3-TR12","factsUrl":"https://icboms.com/api/mcp/products/1N4733APE3%2FTR12","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4733APE3/TR12 Zener Diode, 5.1 V, 1 W, ±5% Tolerance, DO-204AL (DO-41) Axial, Tape & Reel.","salesMarkdown":"## Active production — a 5.1 V reference that stays in the BOM The 1N4733APE3/TR12: Rated for 1 W continuous power dissipation in a DO-204AL (DO-41) axial-lead package, it handles the thermal load of a shunt regulator or voltage clamp without needing a heatsink in free air. ## ±5% tolerance and 7 Ω impedance — what they mean for the circuit The ±5% tolerance on the 5.1 V nominal means the actual zener voltage at the test current falls between 4.845 V and 5.355 V — tight enough for general-purpose regulation, but a calibration-grade reference would need the ±2% or ±1% suffix variants in the same 1N4733 family. Maximum zener impedance of 7 Ohms (Zzt) means the regulation voltage shifts by up to 7 mV per mA of load current change — acceptable for biasing a transistor stage or protecting a CMOS input, but a lower-impedance part is better for supplying a sensitive analog rail. ## Temperature range and leakage — the reliability envelope Operating from -65°C to 150°C, this diode covers the full military temperature band — it holds its zener voltage across the cold start of outdoor telecom gear and the hot soak of an engine bay. Reverse leakage is specified at 10 µA maximum with 1 V applied — low enough that it will not upset a high-impedance bias network or drain a battery in a standby circuit. ## Tape & Reel for automated assembly Supplied on Tape & Reel (TR), the 1N4733APE3/TR12 is ready for pick-and-place into through-hole axial insertion machines — the reel format suits volume production runs rather than prototype bench stock.","metaTitle":"Microchip 1N4733APE3/TR12 Zener Diode, 5.1 V, 1 W","metaDescription":"Active production — Microchip Technology 1N4733APE3/TR12 zener diode, 5.1 V nominal, 1 W, ±5% tolerance, DO-41 axial. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Microchip Technology","Series":"-","Package":"Tape & Reel (TR)","Tolerance":"±5%","Power - Max":"1 W","Mounting Type":"Through Hole","Package / Case":"DO-204AL, DO-41, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"1N4733","Impedance (Max) (Zzt)":"7 Ohms","Operating Temperature":"-65°C~150°C","Supplier Device Package":"DO-204AL (DO-41)","Voltage - Zener (Nom) (Vz)":"5.1 V","Current - Reverse Leakage @ Vr":"10 µA @ 1 V","Voltage - Forward (Vf) (Max) @ If":"1.2 V @ 200 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9150","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f2579cdb7aec091d0b5f99df5459e04c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N4733APE3%2FTR12/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the 1N4733APE3/TR12?","answer":"The 1N4733A (without the PE3/TR12 suffix) is the same 5.1 V, 1 W, ±5% zener in a DO-41 package — the difference is packaging format (bulk vs tape-and-reel). The base product number 1N4733 covers the family; any suffix variant with the same voltage and tolerance is functionally interchangeable in the circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4733APE3-TR12","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4733APE3-TR12 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}}