1EZ190D2E3/TR8

Overview

The Microsemi Corporation 1EZ190D2E3/TR8 is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 190V with a tight tolerance of ±2%. The device is rated for a maximum power dissipation of 1W and utilizes the DO-204AL (DO-41) axial through-hole package. It operates within an extended temperature range from -65°C to +150°C, ensuring reliability in demanding environments.

Feature Summary

• Provides precise voltage regulation with a narrow ±2% tolerance band around the nominal 190V rating.
• Engineered for high thermal stability across a wide operating temperature range extending up to 150°C.
• Constructed using robust silicon technology housed in a standard axial leaded package for reliable mounting.

Applications

• Precision voltage reference circuits requiring stable DC levels
• Over-voltage protection stages in power supply systems
• Clamping applications in signal conditioning networks

Procurement Notes

Verify the specific suffix D2E3 confirms the 2% tolerance and RoHS compliance status against the manufacturer's official datasheet. Confirm the TR8 packaging designation matches the required reel quantity for automated assembly processes before finalizing procurement orders.

Selection Notes

Select this component when a 190V regulation point is required with strict tolerance limits. Ensure the circuit design accommodates the 1W power dissipation capability and that the PCB layout supports the DO-204AL axial footprint dimensions for proper thermal management.

Part Context

This part belongs to the Microsemi 1EZ series of single Zener diodes. These components are characterized by their rugged silicon construction and standardized axial packaging, making them suitable for general-purpose discrete semiconductor applications where reliable voltage clamping is essential.

Replacement Considerations

Cross-reference with other 190V Zener diodes in the DO-204AL package having ±2% tolerance and 1W power ratings. Verify pinout compatibility and thermal characteristics match the original design requirements before substitution.