1N5230BE3

Single Zener Diodes Overview

The Microchip Technology 1N5230BE3 is a silicon unidirectional Zener voltage regulator diode housed in a hermetically sealed glass DO-7 (DO-204AA) axial leaded package. It features a nominal Zener voltage of 4.7 V with a tolerance of 5% and a maximum power dissipation of 0.5 W at ambient temperatures up to 75°C. The device operates within a junction temperature range of -65°C to +200°C and exhibits a maximum dynamic impedance of 19 Ω at the test current of 20 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for environmental stability
• Double slug type internal structure for thermal performance
• Compliant with RoHS directives and free from halogenated substances

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in sensitive electronic systems
• Clamping applications in signal conditioning paths

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'E3' confirms lead-free termination and RoHS compliance as specified by Microchip. Ensure the procurement source provides documentation confirming the hermetic seal integrity and JEDEC registration status for the DO-7 package. Cross-reference the manufacturer part number against official Microchip databases to authenticate the component origin and screening level.

Single Zener Diodes Selection Notes

Select this component when a 4.7 V regulation point is required in a high-reliability environment necessitating hermetic sealing. The DO-7 package supports higher operating temperatures compared to standard plastic equivalents. Consider the 19 Ω dynamic impedance for noise-sensitive designs and verify that the 0.5 W power rating aligns with the thermal management capabilities of the target circuit board layout.

Single Zener Diodes Part Context

This component belongs to the widely recognized 1N5221 through 1N5281B series of 0.5 W Zener regulators. The series offers a broad voltage selection from 2.4 V to 200 V in standard tolerances. The 1N5230BE3 variant specifically utilizes the DO-7 glass axial package, which is preferred for military and aerospace applications due to its robustness against moisture and mechanical stress.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the non-E3 version 1N5230B or the hermetically sealed 1N5230BRA1 from Tak Cheong. Verify that alternative sources maintain the same DO-7 package dimensions and hermetic sealing specifications to ensure physical and electrical interchangeability in existing assemblies.