1N5230B

Single Zener Diodes Overview

The onsemi 1N5230B is a silicon unidirectional Zener diode housed in a hermetically sealed glass DO-35 (DO-204AH) axial lead package. It provides a nominal Zener voltage of 4.7 V with a tolerance of ±5%. The device dissipates up to 500 mW at ambient temperatures up to 50°C, requiring derating above this threshold. Electrical characteristics are measured at a test current of 20 mA, yielding a maximum dynamic impedance of 19 Ω and a reverse leakage current of 5.0 µA at 2.0 V. The component supports an operating junction temperature range from −65°C to +200°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for environmental stability
• High thermal stability across extended temperature ranges
• Low noise operation suitable for precision circuits

Single Zener Diodes Applications

• Voltage regulation in electronic circuits
• Overvoltage protection for sensitive components
• Reference voltage generation in measurement systems

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm shipping format. Standard bulk packaging contains 5000 units per bag, while tape and reel options are available for automated assembly. Confirm RoHS compliance status as it varies by manufacturing lot and region. Ensure the selected variant matches the required lead length and marking specifications for your design integration.

Single Zener Diodes Selection Notes

Select this component when a stable 4.7 V reference is required in high-reliability environments. The DO-35 package offers robust mechanical strength and thermal performance compared to smaller surface-mount alternatives. Consider the 19 Ω dynamic impedance for applications demanding tight voltage regulation under varying load currents. Verify that the 500 mW power dissipation rating aligns with the thermal management capabilities of the target circuit board.

Single Zener Diodes Part Context

This part belongs to the 1N5221B through 1N5252B series of Zener diodes manufactured by onsemi. The series utilizes epitaxial Zener technology to ensure consistent performance across various voltage ratings. The 1N5230B specifically targets the 4.7 V segment of this lineup, sharing common package dimensions and electrical testing methodologies with its siblings.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N5230B equivalents to verify pinout compatibility and thermal resistance values. Ensure substitute parts meet the same hermetic sealing requirements if used in harsh environments. Validate that replacement devices maintain the ±5% voltage tolerance and 19 Ω dynamic impedance specifications.