1N5237

Single Zener Diodes Overview

The SMC Diode Solutions 1N5237 is a silicon planar Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 8.2 V and a maximum power dissipation of 500 mW. The device utilizes a DO-35 axial leaded package suitable for through-hole mounting. Key electrical characteristics include a Zener impedance of 8 Ohms, a reverse leakage current of 3 µA at 6.5 V, and a forward voltage of 1.1 V at 200 mA. It operates within a temperature range of -65°C to +200°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for high reliability
• Low Zener impedance for stable voltage regulation
• Wide operating temperature range capability

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify the specific manufacturer datasheet for the exact lot code and revision level before integration. Confirm that the DO-35 package dimensions match the target PCB footprint. Ensure the thermal management strategy accommodates the 500 mW power dissipation rating under worst-case ambient conditions. Cross-reference the Zener voltage tolerance requirements with the specific suffix if available.

Single Zener Diodes Selection Notes

Select this component when a standard 8.2 V reference is required in a through-hole configuration. The DO-35 package offers robust mechanical stability compared to surface-mount alternatives. Consider the 8 Ohm impedance value for dynamic load regulation needs. Verify compatibility with the system's maximum operating temperature of 200°C.

Single Zener Diodes Part Context

The 1N5237 belongs to the widely recognized 1N52xx series of Zener diodes. This series is standardized across multiple manufacturers, ensuring pinout and basic electrical parameter interchangeability. The 1N5237 specifically targets the 8.2 V segment of this family, providing a common solution for general-purpose regulation tasks in industrial and commercial electronics.

Single Zener Diodes Replacement Considerations

Equivalent parts include Vishay 1N5237B, onsemi 1N5237B, and Microsemi 1N5237A. Verify package compatibility (DO-35) and electrical tolerances (typically ±5% or ±10%) when substituting.