{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4733P/TR12","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4733P-TR12","canonicalUrl":"https://icboms.com/microchip/1N4733P-TR12","factsUrl":"https://icboms.com/api/mcp/products/1N4733P%2FTR12","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4733P/TR12 Zener Diode, 5.1 V, 1 W, ±10% Tolerance, DO-204AL (DO-41) Axial, Tape & Reel.","salesMarkdown":"The 1N4733P/TR12 is a 5.1 V Zener diode from Microchip Technology, rated for 1 W continuous power dissipation in the DO-204AL (DO-41) axial-lead package. The 5.1 V nominal Zener voltage (Vz) is a standard reference used for shunt regulation, voltage clamping, or as a bias rail for low-power analog stages — the 1 W rating means it can sink up to roughly 196 mA at 5.1 V before exceeding the thermal limit at 25°C ambient. The ±10% tolerance band (4.59 V to 5.61 V) is typical for general-purpose Zener diodes — adequate for supply rail clamping or simple reference generation, but the wider window means it is not a precision voltage reference. The 7 Ohm max dynamic impedance (Zzt) at the test current keeps the regulation slope tight enough for most bias and protection circuits. ## Temperature range and reverse leakage — deployment context Reverse leakage is specified at 10 µA max at 1 V reverse voltage — this is the current that bleeds through the junction before it reaches the Zener breakdown; at elevated temperatures the leakage doubles, so a high-impedance load on the regulated node will see the voltage drift upward as the diode warms. The DO-204AL (DO-41) axial package is through-hole mounted — the leads are 0.025-inch diameter tinned copper, designed for hand-solder or wave-solder assembly. The forward voltage drop (1.2 V max at 200 mA) is only relevant if the diode is used in the forward-conduction direction, which is uncommon for Zener applications but noted for the BOM. ## Active lifecycle — sourcing posture No direct pin-compatible alternative is recorded from the same manufacturer — the 1N4733 is the base number, and the P/TR12 variant is the tape-and-reel production code.","metaTitle":"Microchip 1N4733P/TR12 Zener Diode, 5.1 V, 1 W, DO-41","metaDescription":"Active 5.1 V Zener diode in DO-204AL (DO-41) axial package. 1 W power dissipation, ±10% tolerance, -65°C to 150°C range. Available 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":"±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":"$1.7850","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f2579cdb7aec091d0b5f99df5459e04c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N4733P%2FTR12/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 1N4733P/TR12 and how do I get a price?","answer":"The 1N4733P/TR12 is available to order against an RFQ through independent distribution. No stock-holding claim is made — each order is sourced per the BOM line."},{"question":"What is the closest pin-compatible alternative to 1N4733P/TR12?","answer":"No official pin-compatible alternative is recorded from Microchip Technology. The base product number 1N4733 defines the Zener voltage and package; the P/TR12 suffix is a tape-and-reel packaging variant. Any replacement would need to match the 5.1 V Zener voltage, 1 W power rating, and DO-204AL (DO-41) axial footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4733P-TR12","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4733P-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}}