1N5242BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N5242BUR-1 is a surface mount Zener voltage regulator housed in a DO-213AA package. It provides a nominal Zener voltage of 12 V with a ±5% tolerance at a test current of 20 mA. The device features a maximum power dissipation of 0.5 W and a dynamic impedance of 30 Ohms. It operates within a junction temperature range of -65°C to +175°C, exhibits a reverse leakage current of 600 µA at 9.1 V, and has a forward voltage of 1.1 V at 200 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed glass surface mount package with internal metallurgical bond
• Surface mount equivalent of JEDEC registered 1N5221 series
• Inherently radiation hard per Microsemi specifications
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Reference voltage sources for electronic circuits
• Protection against voltage transients

Single Zener Diodes Procurement Notes

Verify the specific suffix letters on the part number to confirm voltage tolerance and RoHS compliance status. Ensure the ordering suffix matches the required reliability level, as commercial versions differ from screened options. Confirm package availability and tape-and-reel specifications before procurement.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for high-reliability applications. Consider the 12 V nominal voltage and 0.5 W power rating for circuit design. Evaluate the thermal resistance and derating curves for proper heat dissipation in the target environment.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 through 1N5281BUR-1 series, which offers surface mount equivalents to popular JEDEC registered axial-leaded Zener diodes. The series covers a wide voltage range from 2.4 V to 200 V in a metallurgically bonded configuration suitable for demanding environments.

Single Zener Diodes Replacement Considerations

1N5242B-TAP

Single Zener Diodes FAQ

What is the maximum reverse leakage current specified for this device?

The maximum reverse leakage current is 600 µA at a reverse voltage of 9.1 V.

Is the 1N5242BUR-1 sensitive to electrostatic discharge?

No, the device is non-sensitive to ESD according to MIL-STD-750 method 1020.