1N5257B-TR

Single Zener Diodes Overview

The Vishay 1N5257B-TR is a silicon planar power Zener diode in the DO-35 (DO-204AH) axial leaded package. It provides a nominal Zener voltage of 33 V with a standard tolerance of ±5%. The device operates at a test current of 3.8 mA and dissipates up to 500 mW of power. Key electrical characteristics include a maximum reverse leakage current of 0.1 µA, a dynamic impedance of 58 Ω, and a temperature coefficient of 0.092 %/K.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Features a glass-sealed DO-35 axial leaded package for through-hole mounting
• Designed for single circuit configuration applications

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the ordering code matches the specific suffix required for your application. Confirm the reel quantity aligns with production needs. Ensure compliance with RoHS directives if applicable. Validate thermal management requirements against absolute maximum ratings before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a 33 V reference is needed in an axial package. Consider the 5% tolerance for general regulation tasks. Evaluate the 500 mW power dissipation limit relative to ambient temperatures. Check the dynamic impedance value for noise sensitivity requirements in the target circuit design.

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 range of voltages from 2.4 V to 75 V. The 'B' suffix indicates the standard ±5% voltage tolerance version of the device.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering the 1N5257B specification in the DO-35 package. Verify pinout compatibility and ensure equivalent thermal resistance values are met for direct substitution in existing designs.

Single Zener Diodes FAQ

What is the Zener voltage tolerance for the 1N5257B?

The standard tolerance for the 1N5257B is ±5%, as indicated by the 'B' suffix in the ordering code.

What is the maximum operating junction temperature?

The maximum junction temperature for this device is 175 °C.