1N5237B

Single Zener Diodes Overview

The onsemi 1N5237B is a Zener diode in the 1N5221B-1N5252B series, housed in an axial lead Case 017AG package. It features a nominal Zener voltage of 8.2 V with a tolerance range of 7.790 V to 8.610 V at a test current of 20 mA. The device has a maximum power dissipation of 500 mW and operates within a junction temperature range of -65°C to +200°C. Key electrical parameters include a Zener impedance (ZZ) of 8 ohms and a reverse leakage current (IR) of 0.25 µA at 6.5 V.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation through precise Zener breakdown characteristics.
• Constructed in a hermetically sealed glass axial lead package for durability.
• Capable of operating at high junction temperatures up to 200°C.

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels.
• Overvoltage protection for sensitive electronic components.
• Clipping and clamping applications in signal processing.

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix when purchasing. The standard bulk bag version is designated without a TR suffix, while tape and reel options carry the TR suffix. Confirm that the required quantity matches the available shipping configuration, such as 5000 units per bulk bag or tape and reel, to ensure compatibility with assembly processes.

Single Zener Diodes Selection Notes

Select this component based on the required nominal Zener voltage of 8.2 V and the acceptable tolerance band. Ensure the application current stays within the specified test conditions to maintain accuracy. Consider the thermal management requirements given the 500 mW power dissipation limit and the derating factor above 50°C.

Single Zener Diodes Part Context

This part belongs to the 1N5221B-1N5252B series of Zener diodes manufactured by onsemi. The series covers a wide range of voltage values from 2.4 V to 24 V, all sharing similar packaging and general performance characteristics. The 1N5237B specifically addresses applications needing an 8.2 V reference point within this standardized lineup.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 8.2 V nominal Zener voltage, 500 mW power rating, and axial lead package style. Verify that any alternative component meets the same electrical tolerances and temperature specifications to ensure circuit compatibility.