{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4734PE3/TR8","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4734PE3-TR8","canonicalUrl":"https://icboms.com/microchip/1N4734PE3-TR8","factsUrl":"https://icboms.com/api/mcp/products/1N4734PE3%2FTR8","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4734PE3/TR8 Zener diode, 5.6 V nominal, 1 W maximum power, ±10% tolerance, DO-204AL (DO-41) axial package, Tape & Reel.","salesMarkdown":"## 5.6 V regulation with a 1 W thermal budget The 1N4734PE3/TR8 is a 5.6 V Zener diode from Microchip Technology, rated for 1 W continuous power dissipation. With a ±10% tolerance, the actual Zener voltage can fall between 5.04 V and 6.16 V. For a precision reference, a tighter-tolerance part would be needed; for general clamping or crude regulation, this band is usually acceptable. ## DO-41 axial package — board-fit and thermal path The leads are typically formed for through-hole PCB mounting or point-to-point wiring, and the body is small enough for dense layouts where a surface-mount Zener would not handle the 1 W dissipation without a large copper pad. The 1 W power rating assumes adequate lead length and ambient temperature up to 50 °C; above that, derating applies. In practice, the DO-41 package relies on the leads to conduct heat to the PCB copper, so the trace width and copper area around the anode and cathode pads directly influence the junction temperature. ## Operating range and leakage behaviour The 150°C maximum junction temperature is typical for silicon Zener diodes and sets the upper bound for the thermal design. Reverse leakage current is 10 µA maximum at 2 V reverse bias — well below the Zener voltage, so this is the leakage in the non-conducting region. At 5.6 V the leakage will be higher but still in the microamp range for most of the temperature range, which matters for battery-powered circuits where every microamp counts. The maximum Zener impedance (Zzt) is 5 Ohms at the test current. This low impedance means the voltage across the diode changes only modestly with current variations, which is the whole point of a Zener regulator: the 5.6 V rail stays within a few hundred millivolts even as the load current shifts. ## Forward conduction mode When forward-biased, the diode conducts with a maximum forward voltage of 1.2 V at 200 mA. This is typical for a silicon Zener used as a rectifier or clamp in the forward direction, though the primary application is reverse-breakdown regulation.","metaTitle":"Microchip 1N4734PE3/TR8 Zener Diode, 5.6 V, 1 W, DO-41","metaDescription":"Microchip Technology 1N4734PE3/TR8 Zener diode, 5.6 V nominal, 1 W power dissipation, ±10% tolerance, DO-41 axial package. Active production, sourced per RFQ.","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":"1N4734","Impedance (Max) (Zzt)":"5 Ohms","Operating Temperature":"-65°C~150°C","Supplier Device Package":"DO-204AL (DO-41)","Voltage - Zener (Nom) (Vz)":"5.6 V","Current - Reverse Leakage @ Vr":"10 µA @ 2 V","Voltage - Forward (Vf) (Max) @ If":"1.2 V @ 200 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8850","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f2579cdb7aec091d0b5f99df5459e04c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the 1N4734PE3/TR8 come in?","answer":"The 1N4734PE3/TR8 is supplied in a DO-204AL (DO-41) axial-lead through-hole package. The /TR8 suffix denotes Tape & Reel packaging, which is the standard format for volume automated assembly with axial-lead forming and sequencing equipment."},{"question":"What is the tolerance of the 1N4734PE3/TR8 Zener voltage?","answer":"The Zener voltage tolerance is ±10%. For a 5.6 V nominal part, the actual Vz can range from 5.04 V to 6.16 V. If your circuit requires tighter regulation, consider a 5% or 2% grade from the same 1N4734 family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4734PE3-TR8","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4734PE3-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}}