{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4733PE3/TR8","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4733PE3-TR8","canonicalUrl":"https://icboms.com/microchip/1N4733PE3-TR8","factsUrl":"https://icboms.com/api/mcp/products/1N4733PE3%2FTR8","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology Zener diode, 1N4733PE3/TR8, 5.1 V nominal, ±10% tolerance, 1 W power, DO-204AL (DO-41) axial package, Tape & Reel.","salesMarkdown":"## 5.1 V shunt regulation — the parametric baseline The 1N4733PE3/TR8 is a 5.1 V Zener diode from Microchip Technology's 1N4733 family, rated for 1 W continuous power dissipation in a through-hole DO-204AL (DO-41) axial package. With a ±10% tolerance, the nominal 5.1 V breakdown sits between 4.59 V and 5.61 V — a band that suits general-purpose rail clamping or low-accuracy shunt regulation where a tighter reference is not required. ## Thermal and dynamic behaviour Maximum Zener impedance (Zzt) is 7 Ohms at the test current — this is the dynamic resistance at the breakdown knee; a lower Zzt means better voltage regulation as the bias current varies, though for a 1 W part the regulation is adequate for load currents up to roughly 196 mA (the 1 W / 5.1 V derating limit). Reverse leakage is specified at 10 µA maximum when the applied voltage is 1 V — well below the breakdown threshold, confirming the diode blocks cleanly in the off-state for low-power battery circuits where standby current matters. The DO-204AL (DO-41) axial-lead package is a through-hole industry standard — the 0.025-inch diameter leads suit 0.040-inch plated-through holes on single-sided or double-sided boards, and the body stands off the board naturally for convective cooling. Supplied on Tape & Reel (TR), the diode is ready for automated insertion equipment — the reel quantity supports volume builds without manual handling of loose parts. ## Active lifecycle — sourcing posture The design-in risk is low for new builds.","metaTitle":"Microchip 1N4733PE3/TR8 Zener Diode, 5.1 V, 1 W, DO-41","metaDescription":"Microchip Technology 1N4733PE3/TR8 Zener diode, 5.1 V nominal, ±10% tolerance, 1 W power dissipation. DO-41 axial package, -65°C to 150°C.","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":"±10%","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":"$0.8850","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f2579cdb7aec091d0b5f99df5459e04c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N4733PE3%2FTR8/alternatives.json"},"ai":{"faq":[{"question":"What is the 1N4733PE3/TR8's nominal Zener voltage and tolerance?","answer":"The nominal Zener voltage (Vz) is 5.1 V with a ±10% tolerance, so the actual breakdown voltage for any given unit falls between 4.59 V and 5.61 V."},{"question":"What package does the 1N4733PE3/TR8 come in?","answer":"It is supplied in a DO-204AL (DO-41) axial-lead through-hole package, on Tape & Reel for automated assembly."},{"question":"What is the maximum power dissipation of this Zener diode?","answer":"The 1N4733PE3/TR8 is rated for 1 W continuous power dissipation — the practical current limit at 5.1 V is about 196 mA before the junction exceeds the thermal budget at 25°C ambient."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4733PE3-TR8","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4733PE3-TR8 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}}