1EZ170D2E3/TR12

Overview

The 1EZ170D2E3/TR12 is a single silicon Zener diode manufactured by Microsemi Corporation. It features a nominal Zener voltage of 170 V with a tight tolerance of ±2%. The device is rated for a maximum power dissipation of 1 W and utilizes the DO-41 axial leaded plastic package. It supports an operating temperature range from -65°C to +150°C and includes RoHS compliance indicated by the e3 suffix.

Feature Summary

• Provides precise voltage regulation with a tight ±2% tolerance specification
• Capable of operation at high DC currents or full power ratings when adequate heat sinking is applied
• Features moisture classification Level 1 requiring no dry pack storage

Applications

• Voltage regulation in circuits requiring stable reference voltages
• Protection of voltage-sensitive electronic devices against transients
• General-purpose discrete semiconductor applications within specified thermal limits

Procurement Notes

Verify the specific suffix 'D2' confirms the required ±2% tolerance, as other suffixes indicate different tolerances. Confirm the 'e3' suffix denotes lead finish and RoHS compliance. Check current availability status as this component may be subject to discontinuation or lifecycle changes. Ensure the DO-41 axial package matches the target PCB layout requirements.

Selection Notes

Select this component when a 170 V Zener voltage with high precision is necessary. The 1 W power rating requires consideration of thermal management in the final design. Compare against the broader 1EZ series for alternative voltage options or tolerance levels if specifications allow. Verify that the axial lead configuration fits the assembly process constraints.

Part Context

This part belongs to the 1EZ series of silicon Zener diodes produced by Microsemi. The series offers various voltage selections ranging from 110 V to 200 V in the DO-41 package. Different suffixes denote varying voltage tolerances and packaging options. This specific model represents the higher voltage end of the standard 1 Watt axial-leaded lineup.

Replacement Considerations

Consult Microsemi documentation for exact equivalents. Other parts in the 1EZ series may offer similar electrical characteristics with different voltage ratings or tolerance levels.