1N4747PE3/TR8

Overview

The Microchip Technology 1N4747PE3/TR8 is a silicon 1.0-watt Zener diode in the 1N4728AP-1N4764AP series, housed in a DO-41 axial lead package. It provides voltage regulation with a nominal Zener voltage of 20 V and a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and features RoHS compliance indicated by the 'e3' suffix.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole applications
• Constructed with a void-free transfer molded thermosetting epoxy body

Applications

• Voltage regulation circuits
• Reference voltage sources
• Overvoltage protection

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'P' indicates plastic construction, 'e3' confirms RoHS compliance, and 'TR' denotes tape and reel packaging. Confirm the manufacturer designation as Microsemi or Microchip Technology to ensure component authenticity and traceability.

Selection Notes

Select this component when a 20 V regulated reference is required in an axial package. Ensure the application supports the 1.0 W power dissipation rating at 25°C and verify thermal management requirements against the specified junction-to-lead thermal resistance.

Part Context

This part belongs to the JEDEC registered 1N4728A through 1N4764A series of 1.0 watt Zener diodes. The series offers extensive voltage selection from 3.3 to 100 volts. The 'P' suffix designates the plastic encapsulated version, which provides lower thermal resistance compared to glass-body options.

Replacement Considerations

Surface mount equivalents are available as SMAJ4747A or MLL4747A.