1N5221C-TR

Single Zener Diodes Overview

The Vishay 1N5221C-TR is a silicon planar power Zener diode in the DO-35 (DO-204AH) axial leaded package. It provides a nominal Zener voltage of 2.4 V with a tight tolerance of ±2%. The device dissipates up to 500 mW at thermal equilibrium and operates within a junction temperature range of -65 °C to +175 °C. Key electrical characteristics include a maximum reverse leakage current of 100 µA at 1 V, a dynamic resistance of 30 Ω at a test current of 20 mA, and a negative temperature coefficient of -0.085 %/K.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Features internal metallurgical bond construction
• Offers high precision with a ±2% voltage tolerance

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the ordering code includes the 'C' suffix to confirm the specific ±2% tolerance requirement. Ensure the procurement specification matches the TR suffix for reel packaging. Confirm compliance with RoHS directives and material categorization standards before finalizing orders.

Single Zener Diodes Selection Notes

Select this component when precise low-voltage regulation is required. The ±2% tolerance distinguishes it from standard B-series parts. Verify that the circuit design accommodates the specified 500 mW power dissipation limit and the operating temperature constraints of the DO-35 package.

Single Zener Diodes Part Context

This part belongs to the 1N5221 to 1N5267 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 2.4 V to 75 V. The C-suffix variants provide tighter manufacturing tolerances compared to the standard B-suffix devices.

Single Zener Diodes Replacement Considerations

Direct replacements within the same manufacturer family include the 1N5221B-TR, which shares identical physical dimensions but offers a wider ±5% voltage tolerance.

Single Zener Diodes FAQ

What is the temperature coefficient for the 1N5221C?

The typical temperature coefficient for the 1N5221C is -0.085 %/K.

How does the C-suffix differ from the B-suffix?

The C-suffix indicates a tighter voltage tolerance of ±2%, whereas the B-suffix denotes a standard tolerance of ±5%.