1N5230A

Single Zener Diodes Overview

The Microchip Technology 1N5230A is a 4.7 V Zener diode with ±10% voltage tolerance, housed in a DO-35 glass axial package. It dissipates 500 mW at 25°C and operates from -65°C to +175°C. The device features a test current of 20 mA, maximum reverse leakage of 19 μA at 1.5 V, and a Zener impedance of 19 Ω at 0.25 mA.

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
• Clamping applications

Single Zener Diodes Procurement Notes

Verify the specific suffix 'A' confirms the required ±10% tolerance. Confirm the package type matches the DO-35 (DO-204AH) specification. Ensure the manufacturer designation aligns with Microsemi/Microchip requirements for your design.

Single Zener Diodes Selection Notes

Select this component when a 4.7 V reference is needed with standard tolerance. Consider the 500 mW power rating and thermal resistance of 250 °C/W for heat dissipation. Verify that the low capacitance meets the circuit's frequency requirements.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series offers voltages from 2.4 V to 200 V in various tolerances. These devices are JEDEC registered and available in hermetically sealed glass axial packages.

Single Zener Diodes Replacement Considerations

Equivalent parts include 1N5230B for tighter tolerance or 1N5230 without suffix for standard tolerance. Surface mount equivalents are available as MLL5230 in the DO-213AA MELF package.

Single Zener Diodes FAQ

What is the maximum reverse leakage current?

The maximum reverse leakage current is 19 μA measured at 1.5 V.

How is the Zener impedance defined?

Zener impedance is derived from the 60 Hz AC voltage resulting from an AC current superimposed on the DC Zener current.