1N4734AP/TR8

Overview

The Microchip Technology 1N4734AP/TR8 is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 5.6 V with a tight tolerance of ±5%. The device is rated for a maximum power dissipation of 1 W and utilizes the DO-204AL (DO-41) axial through-hole package. Key electrical characteristics include a maximum reverse leakage current of 5 µA, a Zener impedance of 5 Ohms, and a test current of 45 mA. It operates within a temperature range of -65°C to +175°C.

Feature Summary

• Provides stable voltage regulation with a nominal 5.6 V output.
• Offers high precision with a ±5% voltage tolerance.
• Capable of handling up to 1 W of power dissipation.
• Constructed in a robust plastic encapsulated DO-41 axial package.

Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Procurement Notes

Verify the specific suffix 'TR8' against official Microchip documentation to confirm reel packaging quantities and tape specifications. Ensure compatibility with RoHS requirements if applicable, as historical data indicates variations in compliance status across different manufacturing runs and prefixes. Confirm availability directly with authorized distributors or the manufacturer.

Selection Notes

Select this component when a precise 5.6 V reference is required in an axial through-hole form factor. The ±5% tolerance makes it suitable for general-purpose regulation where tighter tolerances are not critical. Consider the 1 W power rating and operating temperature range to ensure suitability for the intended thermal environment.

Part Context

This part belongs to the widely used 1N47xx series of 1-watt Zener diodes. The 'AP' designation typically indicates a specific tolerance level (±5%) and package type compared to standard variants. The 'TR8' suffix denotes the specific reel packaging configuration used for automated assembly processes.

Replacement Considerations

Compatible replacements include other 1N4734 variants from different manufacturers, such as those from ON Semiconductor or Vishay, provided they meet the 5.6 V, 1 W, and ±5% tolerance specifications. Surface-mount equivalents like the SMAJ4734A may be considered if board space allows for package conversion.