1N5244B

Single Zener Diodes Overview

The Microchip Technology 1N5244B is a 0.5-watt glass axial-lead Zener diode housed in a DO-35 (DO-204AH) package. It provides a nominal Zener voltage of 14 volts with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 10 µA at 1 volt. Electrical characteristics include a test current of 9 mA, a dynamic impedance of 0.1 Ohms at the test current, and a temperature coefficient of +0.082 %/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance for high-frequency applications
• Inherently radiation hard per MicroNote 050
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• General-purpose voltage regulation

Single Zener Diodes Procurement Notes

Verify the specific manufacturer origin, as the datasheet identifies Microsemi while other sources list Microchip Technology. Confirm RoHS compliance status by checking for the e3 suffix on the ordering part number. Ensure the component meets the required military screening levels if applicable, as these require specific prefixes.

Single Zener Diodes Selection Notes

Select this component when a 14-volt Zener reference with tight ±5% tolerance is required. The low dynamic impedance of 0.1 Ohms makes it suitable for precision regulation. Consider the DO-35 through-hole package for standard PCB mounting. Verify thermal derating requirements if operating above 50°C lead temperature.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5-watt Zener voltage regulators. The series offers an extensive selection from 2.4 to 200 volts. The B suffix specifically denotes a standard voltage tolerance of plus or minus 5%, distinguishing it from A (10%), C (2%), and D (1%) variants.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available in the MLL5221 to MLL5281B series using the DO-213AA MELF style package. Glass body axial-leaded DO-7 equivalents are also offered as alternatives.