1EZ170D5/TR12

Overview

The Microsemi Corporation 1EZ170D5/TR12 is a single silicon Zener diode designed for through-hole mounting in the DO-204AL (DO-41) axial package. It features a nominal Zener voltage of 170 V with a tolerance of ±5%. The device has a maximum power dissipation rating of 1 W and operates as a unidirectional component. This specific part variant is identified as non-RoHS compliant.

Feature Summary

• Provides stable voltage regulation at a nominal 170 V reference level
• Engineered for high-power dissipation up to 1 W in an axial leaded package
• Constructed from silicon material for reliable unidirectional operation

Applications

• Voltage reference circuits requiring 170 V stabilization
• Overvoltage protection stages in high-voltage systems
• Clamping applications in industrial electronic equipment

Procurement Notes

Verify compliance status carefully, as this specific suffix indicates non-RoHS certification. Confirm the DO-204AL package dimensions match your PCB footprint requirements. Check current lifecycle status, as availability may be limited due to obsolescence. Ensure sourcing channels provide authentic Microsemi documentation to validate electrical parameters against design specifications.

Selection Notes

Select this component when a precise 170 V Zener breakdown is required with 1 W thermal handling capability. The DO-204AL package suits automated or manual through-hole assembly processes. Consider the ±5% tolerance for circuit precision needs. Evaluate alternative RoHS-compliant variants if environmental regulations mandate stricter compliance standards for the final product.

Part Context

This device belongs to the Microsemi 1EZ series of single Zener diodes. The series offers various voltage ratings and tolerance options within the same axial form factor. The 1EZ170D5 variant specifically targets higher voltage applications compared to lower-rated siblings in the lineup, maintaining consistent packaging and mounting characteristics across the family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with generic DO-41 170V 1W Zener diodes only after confirming exact electrical parameter matches and thermal performance requirements.