1N5943AP/TR8

Single Zener Diodes Overview

The Microchip Technology 1N5943AP/TR8 is a 1.5-watt glass-encapsulated Zener diode with a nominal breakdown voltage of 43 volts and a 10% tolerance. It operates within a junction temperature range of -65°C to +175°C and features hermetically sealed construction for high reliability. The device utilizes an axial-lead DO-41 package and includes a tape-and-reel option indicated by the TR suffix.

Single Zener Diodes Feature Summary

• Hermetically sealed glass body construction with tungsten slugs for enhanced thermal performance and radiation hardness.
• JEDEC registered part number series ensuring compatibility with standard industry specifications.
• Flexible axial-lead mounting terminals suitable for through-hole applications.
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020.

Single Zener Diodes Applications

• Voltage regulation in aerospace avionics systems
• High-reliability industrial power supply circuits
• Temperature-compensated reference voltage sources

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required screening level, as commercial and military-grade variants exist within this family. Confirm RoHS compliance status if environmental regulations apply, noting that certain screening levels may differ from commercial equivalents. Ensure the tape-and-reel packaging aligns with automated assembly requirements before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when high reliability and radiation hardness are critical design parameters. The glass hermetic seal offers superior protection against moisture and contaminants compared to plastic alternatives. Consider the 10% voltage tolerance and dynamic impedance characteristics to ensure adequate regulation stability across the specified operating current and temperature ranges.

Single Zener Diodes Part Context

This device belongs to the 1N5913BG–1N5956BG series of 1.5-watt Zener diodes manufactured by Microsemi Corporation, now part of Microchip Technology. The series provides a wide selection of regulated voltages from 3.3V to 200V in both axial-leaded and surface-mount packages, catering to diverse electronic design needs requiring robust voltage control.

Single Zener Diodes Replacement Considerations

Equivalent parts include other 1N5943B series diodes from different manufacturers offering identical electrical specifications and DO-41 axial leaded packaging. Verify that any substitute maintains the same hermetic sealing quality and radiation hardness ratings if used in space or high-reliability environments.