1N4750PE3/TR8

Overview

The Microchip Technology 1N4750PE3/TR8 is a silicon 1-watt Zener diode in the 1N4728AP through 1N4764AP series, housed in a plastic DO-41 (DO-204AL) axial-lead package. It provides voltage regulation with a nominal Zener voltage of 27 volts at a test current of 9.5 mA. The device features a maximum dynamic impedance of 35 ohms and a maximum reverse current of 5 µA at 5 volts. It operates within a temperature range of -65°C to +150°C and dissipates up to 1.0 watt at 25°C lead temperature. The component is RoHS compliant and moisture classified as Level 1.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for standard PCB integration
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Voltage regulation circuits requiring 27V reference
• Power supply protection and clamping applications
• General purpose electronic equipment utilizing axial-lead components

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'P' indicates plastic construction, 'e3' confirms RoHS compliance with annealed matte-tin plating, and 'TR' denotes tape and reel packaging. Ensure the part number corresponds to the specific 27V variant within the 1N4750 series. Confirm manufacturer origin is Microsemi/Microchip Technology Scottsdale Division for accurate datasheet alignment.

Selection Notes

Select this component when a 27V Zener voltage with 5% tolerance is required in a plastic axial package. Consider the 1W power dissipation capability and 45°C/W thermal resistance for heat management. Choose this over glass-body options if lower thermal resistance or specific moisture classification levels are preferred for the assembly process.

Part Context

This part belongs to the widely used 1N47xx series of 1-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers voltages from 3.3V to 100V. The 'P' suffix distinguishes the plastic DO-41 package from the glass-body 'G' option, offering different thermal characteristics while maintaining JEDEC registration for interchangeability within the standard series.

Replacement Considerations

Equivalent parts include other manufacturers' 1N4750A or 1N4750AP devices in DO-41 packages. Surface mount equivalents such as SMAJ4750A or MLL4750A may be considered if footprint changes are acceptable. Verify that substitute parts meet the same 27V nominal voltage, 5% tolerance, and 1W power rating requirements.