1N4754P/TR8

Overview

The Microchip Technology 1N4754P/TR8 is a silicon 1.0-watt Zener diode in the 1N4728AP through 1N4764AP series, housed in a plastic DO-41 (DO-204AL) axial-lead package with a tape and reel configuration. It provides voltage regulation at a nominal Zener voltage of 39 volts with a standard tolerance of plus or minus 5%. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 60 ohms at a test current of 6.5 mA. Maximum reverse leakage current is specified at 5 microamperes.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole integration
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack

Applications

• Voltage reference circuits
• Overvoltage protection systems
• General-purpose voltage regulation

Procurement Notes

Verify that the ordering suffix TR8 corresponds to the specific tape and reel packaging format required for automated assembly processes. Confirm that the component meets all necessary environmental compliance standards for the intended deployment region. Ensure that the manufacturer documentation aligns with the specific lot codes and screening levels requested for the project.

Selection Notes

Select this component when a 39-volt regulation point is required within the 1-watt power dissipation class. The plastic encapsulation offers lower thermal resistance compared to glass-body options. Consider the 5% voltage tolerance suitable for general applications rather than high-precision references. Verify compatibility with the available axial lead spacing and PCB pad dimensions.

Part Context

This part belongs to the widely used 1N4728A through 1N4764A series of JEDEC registered silicon Zener diodes. The 'P' suffix designates the plastic molded construction, while the 'TR' suffix indicates tape and reel packaging. This series covers an extensive voltage selection from 3.3 to 100 volts, providing a standardized solution for various industrial and commercial electronic designs.

Replacement Considerations

Surface mount equivalents are available as SMAJ4754A or MLL4754A. Glass-body versions exist under the same base number with a 'G' suffix. Military screening options can be obtained by adding MQ, MX, MV, or MSP prefixes respectively.