1N5915DG

Single Zener Diodes Overview

The Microsemi Corporation 1N5915DG is a hermetically sealed glass Zener diode with a DO-41 axial lead package. It provides a nominal Zener voltage of 3.9 V at a test current of 96.1 mA, featuring a tight tolerance of ±1%. The device supports a maximum steady-state power dissipation of 1.25 W and operates within a junction temperature range of -65°C to +175°C. Its dynamic impedance is specified at a maximum of 7.5 Ohms.

Single Zener Diodes Feature Summary

• Hermetically sealed hard glass construction with tungsten slugs for enhanced reliability
• Metallurgically enhanced internal contact design providing lower thermal resistance
• Inherently radiation hard characteristics suitable for demanding environments
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020

Single Zener Diodes Applications

• Voltage regulation across broad operating currents and temperatures
• High-reliability aerospace and defense circuitry
• Harsh environment electronics requiring radiation hardness

Single Zener Diodes Procurement Notes

Verify the specific suffix 'D' confirms the 1% tolerance level required for your application. Confirm RoHS compliance status as standard versions may be non-compliant. Ensure the supplier provides documentation referencing MIL-PRF-19500 screening if high-reliability performance is mandated. Check for tape and reel availability by verifying the presence of a TR suffix in the ordering part number.

Single Zener Diodes Selection Notes

Select this component when precise voltage regulation is critical due to its 1% tolerance specification. The glass hermetic package offers superior thermal management compared to plastic equivalents. Consider the DO-41 form factor for through-hole mounting requirements. Evaluate the 1.25 W steady-state power rating against your circuit's thermal dissipation needs.

Single Zener Diodes Part Context

This component belongs to the 1N5913BG–1N5956BG series of 1.5-watt glass Zener diodes manufactured by Microsemi. The series covers a wide voltage range from 3.3 V to 200 V. The 'G' suffix denotes the glass casing, while the 'D' suffix indicates the specific 1% voltage tolerance variant within the JEDEC registered numbering system.

Single Zener Diodes Replacement Considerations

Equivalent plastic body options are available as 1N5915BP. Surface mount alternatives include MELF (1N5915BUR-1), SMB (SMBG5915B), SMAJ (SMAJ5915B), and Powermite (1PMT5915B) packages.