1N5237B-T

Single Zener Diodes Overview

The Vishay 1N5237B-T is a silicon planar power Zener diode with an 8.2 V nominal voltage and ±5 % tolerance. It operates in the DO-35 (DO-204AH) axial package, dissipating up to 500 mW at thermal equilibrium. The device features a maximum reverse leakage current of 3 µA at 6.5 V and a dynamic impedance of 8 Ω at a test current of 20 mA. It supports junction temperatures up to 175 °C and includes a temperature coefficient of 0.062 %/K.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Provides standard ±5 % Zener voltage tolerance
• Features high thermal stability with a 175 °C junction rating

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 the desired packaging format. Confirm compliance requirements against project specifications. Validate electrical parameters directly from the manufacturer datasheet before integration. Ensure lead lengths meet thermal resistance constraints during installation.

Single Zener Diodes Selection Notes

Select this component when a standard 8.2 V reference is needed in an axial through-hole configuration. Consider the 500 mW power dissipation limit relative to ambient operating conditions. Evaluate the 8 Ω dynamic impedance for circuit sensitivity requirements. Compare against MiniMELF or SOD-123 variants if space constraints dictate surface-mount alternatives.

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 'B' suffix specifically denotes the standard ±5 % voltage tolerance band available across the product line.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' 1N5237B equivalents in the DO-35 package. Surface-mount replacements are available in the TZM5237B (MiniMELF) or MMSZ5237B (SOD-123) families, provided pinout compatibility and thermal derating curves are reviewed.