1EZ150D2E3/TR12

Overview

The Microsemi Corporation 1EZ150D2E3/TR12 is a single Zener diode designed for through-hole mounting in the DO-204AL (DO-41) axial package. It features a nominal Zener voltage of 150 V with a tight tolerance of ±2%. The device is rated for a maximum power dissipation of 1 W and operates within a temperature range of -65°C to +150°C. The component utilizes an E3 suffix indicating lead-free termination compliant with specific environmental standards, though it may not meet full RoHS directives depending on the revision. It is supplied in tape and reel packaging for automated assembly processes.

Feature Summary

• High precision voltage regulation with ±2% tolerance
• Extended operating temperature range up to 150°C
• Lead-free termination technology

Applications

• Precision voltage reference circuits
• Overvoltage protection in sensitive electronics
• Clamping applications in signal conditioning

Procurement Notes

Verify the exact datasheet revision and environmental compliance status before procurement, as legacy Microsemi components may have varying RoHS interpretations. Confirm that the DO-204AL axial lead form factor matches your PCB footprint requirements. Ensure the tape and reel quantity aligns with your production line specifications. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when precise voltage clamping at 150 V is required with minimal deviation. The ±2% tolerance makes it suitable for applications where standard 5% or 10% Zener diodes are insufficient. Consider the 1 W power rating for thermal management in high-current scenarios. The axial package is ideal for prototyping or applications requiring robust mechanical stability compared to surface-mount alternatives.

Part Context

This part belongs to the Microsemi 1EZ series of single Zener diodes, which offers various voltage ratings and tolerance options. The series is characterized by stable performance and reliability in discrete semiconductor applications. The 1EZ150 variant specifically targets mid-range voltage regulation needs within the broader portfolio of axial-lead Zener diodes offered by the manufacturer.

Replacement Considerations

Direct substitutes include other 150 V Zener diodes with ±2% tolerance in the DO-41 package from compatible manufacturers. Verify electrical parameters such as impedance and test current match the original design requirements. Note that generic equivalents may not offer the same temperature coefficient characteristics.