1N5254C-TR

Single Zener Diodes Overview

The Vishay 1N5254C-TR is a silicon planar power Zener diode in the DO-35 axial package. It provides a nominal Zener voltage of 27 V with a tight tolerance of ±2%. The device dissipates up to 500 mW and operates within a junction temperature range of -65 °C to +175 °C. Key electrical characteristics include a maximum reverse leakage current of 0.1 µA at 21 V, a dynamic resistance of 41 Ω at 4.6 mA, and a forward voltage of 1.1 V at 200 mA.

Single Zener Diodes Feature Summary

• High-precision voltage regulation capability with ±2% tolerance for stable reference applications
• Robust thermal performance supporting operation up to 175 °C junction temperature
• Low leakage current characteristics ensuring minimal power loss in standby states

Single Zener Diodes Applications

• Voltage stabilization circuits
• Precision voltage reference generation
• Overvoltage protection networks

Single Zener Diodes Procurement Notes

Verify that the ordering code includes the 'C' suffix to confirm the required ±2% tolerance specification. Ensure the '-TR' suffix matches the reel packaging requirement for automated assembly processes. Cross-reference the document number 85588 to access the latest technical specifications and compliance data.

Single Zener Diodes Selection Notes

Select this component when circuit design requires tighter voltage accuracy than standard ±5% variants offer. The DO-35 package is suitable for through-hole mounting. Evaluate the 41 Ω dynamic resistance against load regulation requirements. Confirm that the 500 mW power dissipation rating aligns with the expected operating conditions and ambient temperatures.

Single Zener Diodes Part Context

This part belongs to the Vishay 1N5221 to 1N5267 series of small signal Zener diodes. The series utilizes silicon planar technology housed in glass DO-35 cases. The 'C' designation specifically denotes the high-precision ±2% tolerance tier within the product family.

Single Zener Diodes Replacement Considerations

Substitutes such as the 1N5254B-TR from Vishay are available but feature a wider ±5% tolerance rather than the ±2% precision of the C variant.

Single Zener Diodes FAQ

What is the specific meaning of the 'C' suffix in the part number?

The 'C' suffix indicates that the diode has a standard Zener voltage tolerance of ±2%, which is tighter than the ±5% tolerance found in parts with a 'B' suffix.

How does the dynamic resistance affect performance?

The dynamic resistance of 41 Ω at the test current of 4.6 mA determines the diode's ability to maintain a constant voltage under varying current loads; lower values generally indicate better regulation.