1N5223B

Single Zener Diodes Overview

The Microchip Technology 1N5223B is a 0.5 W glass axial-lead Zener diode in the DO-35 package. It provides a nominal Zener voltage of 2.7 V 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 30 µA at 2.4 V. Electrical characteristics include a test current of 20 mA, a Zener impedance of 1300 Ω at 30 mA, and a temperature coefficient of -0.080 %/°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 (ESD)

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements against the datasheet before ordering. Confirm that the selected variant matches the required tolerance level and screening standards. Ensure the package type aligns with the intended PCB layout and mounting style. Cross-reference the manufacturer's part number with official documentation to confirm availability and specifications.

Single Zener Diodes Selection Notes

Select this component based on the required 2.7 V breakdown voltage and ±5% tolerance. Consider the thermal resistance and power derating curves when designing the circuit layout. Evaluate the low capacitance characteristic if the application involves high-speed signal processing or sensitive RF environments.

Single Zener Diodes Part Context

This device belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series offers an extensive selection from 2.4 to 200 volts in standard 5% or 10% tolerances. These glass axial-leaded DO-35 Zeners are JEDEC registered and available in various military screening levels by adding specific prefixes.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as MLL5221 to MLL5281B in the DO-213AA MELF style package. DO-7 glass body axial-leaded Zener equivalents are also available.