1N5238BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N5238BUR-1 is a surface mount Zener voltage regulator in a DO-213AA package. It provides a nominal Zener voltage of 8.7 V at a test current of 20 mA with a tolerance of ±5%. The device dissipates up to 0.5 W and operates within a junction temperature range of -65°C to +175°C. Key electrical parameters include a maximum dynamic impedance of 8 Ohms, a reverse leakage current of 3 µA at 6.2 V, and a forward voltage of 1.1 V at 200 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed metallurgically bonded glass surface mount package
• Surface mount equivalent of JEDEC registered 1N5221 thru 1N5281 series
• Inherently radiation hard per Microsemi specifications
• Non-sensitive to ESD

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Spacecraft avionics data acquisition and control systems
• Radiation-hardened electronic applications

Single Zener Diodes Procurement Notes

Verify the specific part number suffix against official documentation to confirm tolerance and RoHS compliance status. Confirm that the ordering information matches the required metallurgical bond and hermetic sealing specifications for your application environment. Ensure compatibility with standard tape and reel packaging if automated assembly is utilized.

Single Zener Diodes Selection Notes

Select this component when a ruggedized surface mount solution is required for environments involving radiation or extreme temperatures. The DO-213AA package offers a direct footprint replacement for traditional axial-leaded equivalents while maintaining high reliability standards suitable for aerospace and defense sectors.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 through 1N5281BUR-1 series of 0.5 watt Zener voltage regulators. The series covers a voltage range from 2.4 to 200 volts and serves as a surface mount alternative to the popular JEDEC registered 1N5221 to 1N5281 series components.

Single Zener Diodes Replacement Considerations

The 1N5238B is a parameter-equivalent alternative available from Microchip Technology.