1N4756APE3/TR8

Overview

The Microchip Technology 1N4756APE3/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. It provides voltage regulation with a nominal Zener voltage of 47 V and a standard tolerance of ±5%. The device features a maximum dynamic impedance of 80 Ohms at a test current of 5.5 mA and a maximum reverse leakage current of 5 µA at 35.8 V. It operates within a temperature range of -65°C to +150°C and includes 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 standard through-hole applications
• 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 47 V reference
• Power supply protection and clamping applications
• General-purpose electronic equipment utilizing axial-lead components

Procurement Notes

Verify that the ordering suffix TR8 corresponds to the tape and reel packaging configuration as specified in the manufacturer documentation. Confirm the presence of the e3 suffix indicates RoHS compliant annealed matte-Tin plating. Ensure the component matches the specific JEDEC type number requirements for your design specifications before procurement.

Selection Notes

Select this component when a 47 V Zener voltage with ±5% tolerance is required in a plastic axial package. Consider the 1.0 W power dissipation capability and the thermal resistance characteristics for heat management. Verify compatibility with the DO-41 footprint and ensure the operating temperature range meets the environmental conditions of the target application.

Part Context

This part belongs to the popular 1N4728AP through 1N4764AP series of 1.0 watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series offers an extensive voltage selection from 3.3 to 100 volts. The 'P' suffix denotes plastic construction, which provides lower thermal resistance compared to glass-body options, while the 'e3' suffix confirms RoHS compliance.

Replacement Considerations

Compatible substitutes include other manufacturers' 1N4756A variants in DO-41 packages. Ensure replacement parts maintain the 47 V Zener voltage, 1 W power rating, and ±5% tolerance. Verify that surface mount equivalents like SMAJ4756A are adapted correctly if form-factor changes are permitted.