2EZ170D5/TR8

Single Zener Diodes Overview

The Microsemi Corporation 2EZ170D5/TR8 is a silicon axial-leaded Zener diode rated for 2.0 watts of steady-state power dissipation at lead temperatures below 60°C. It provides a nominal Zener voltage of 170 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and features a maximum Zener impedance of 2.9 Ohms at the test current of 2.9 mA. It is supplied in a DO-41 plastic package.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands surge stresses and is nonsensitive to electrostatic discharge per MIL-STD-750 Method 1020
• Flexible axial-lead mounting terminals suitable for through-hole applications

Single Zener Diodes Applications

• Voltage regulation circuits requiring high-voltage stability
• Surge protection applications
• Reference voltage sources in industrial equipment

Single Zener Diodes Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm RoHS compliance status as standard versions may contain lead. Ensure adequate heat sinking is provided to maintain performance within the specified thermal resistance limits during operation.

Single Zener Diodes Selection Notes

Select this component when a precise 170 V reference is required with tight 5% tolerance. Consider the 2W power rating and thermal derating characteristics for circuit design. Verify that the DO-41 package dimensions fit the target PCB layout constraints.

Single Zener Diodes Part Context

This part belongs to the 2EZ3.6D5 thru 2EZ200D5 series of 2-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers a wide selection of voltages from 3.6V to 200V in a single plastic package type, allowing for standardized inventory management across various voltage requirements.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available in the SMBJ2EZ170D5 (DO-214AA) or SMBG2EZ170D5 (DO-215AA) packages. Other tolerance options exist using suffixes 1, 2, or 10 instead of 5.