1N5954CPE3/TR8

Single Zener Diodes Overview

The Microsemi Corporation 1N5954CPE3/TR8 is a glass-encapsulated Zener diode with a nominal voltage of 160 V and a tolerance of ±2%. It operates in the DO-41 (DO-204AL) axial-leaded package. The device provides a maximum steady-state power dissipation of 1.5 W at an ambient temperature of 25 °C, reducing to 1.25 W when mounted on a FR4 printed circuit board. It features a maximum dynamic impedance of 700 Ohms and a maximum reverse current of 1 µA at 121.6 V. The component supports junction and storage temperatures ranging from -65 °C to +175 °C.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless hard glass casing with tungsten slugs for enhanced reliability and lower thermal resistance.
• Inherently radiation hard construction suitable for demanding environments.
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020.
• Flexible axial-lead mounting terminals compatible with standard through-hole assembly.

Single Zener Diodes Applications

• Voltage regulation over broad operating currents and temperatures
• High-reliability aerospace and defense circuits
• Radiation-hardened electronic systems

Single Zener Diodes Procurement Notes

Verify that the ordering suffix PE3 confirms RoHS compliance and TR8 indicates tape-and-reel packaging. Confirm the C suffix matches the required 2% voltage tolerance. Ensure the G suffix requirement is met if hermetic sealing is mandatory, as commercial grades may differ. Cross-reference the manufacturer part number against official datasheets to validate electrical characteristics before procurement.

Single Zener Diodes Selection Notes

Select this component when a precise 160 V regulation point is required within a tight ±2% tolerance band. The DO-41 package facilitates easy integration into existing through-hole designs. Consider the high thermal resistance values and derating curves if the application involves elevated ambient temperatures or limited copper pad areas on the PCB.

Single Zener Diodes Part Context

This device 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 specific model utilizes a JEDEC registered number format and offers optional military screening levels for applications requiring higher reliability standards than standard commercial grade components.

Single Zener Diodes Replacement Considerations

Equivalent plastic-body versions are available as 1N5913BP–1N5956BP. Surface mount alternatives include SMBG(J)5913B–SMBG(J)5956B and SMAJ5913B–SMAJ5956B packages. Verify that replacement parts match the required voltage tolerance and power dissipation ratings.