1N4750P/TR8

Overview

The Microchip Technology 1N4750P/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 TR suffix for tape and reel packaging. It provides voltage regulation at a nominal Zener voltage of 27 V with a standard tolerance of ±10%. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 35 Ohms at a test current of 9.5 mA. Maximum reverse leakage current is specified at 5 µA.

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

Applications

• Voltage regulation circuits
• Reference voltage generation
• Overvoltage protection

Procurement Notes

Verify that the component matches the specific JEDEC registered part number and plastic construction requirements. Confirm the presence of the TR suffix indicates tape and reel packaging rather than bulk or tube formats. Ensure the manufacturer designation aligns with Microsemi or Microchip Technology specifications for this series.

Selection Notes

Select this component when a 27 V reference with ±10% tolerance is required in an axial-lead package. Consider the 1.0 W power dissipation capability and the thermal resistance characteristics for heat management. Verify compatibility with the intended PCB layout and lead spacing dimensions for the DO-41 package.

Part Context

This part belongs to the widely used 1N47xx series of 1-watt Zener diodes. The 'P' suffix denotes plastic encapsulation, which offers lower thermal resistance compared to glass-body options. The 'TR' suffix specifies tape and reel packaging suitable for automated assembly processes.

Replacement Considerations

Consult factory documentation for surface mount equivalents such as SMAJ4750A or MLL4750A.