1N5373B BK

Overview

The Central Semiconductor Corp 1N5373B BK is a silicon unidirectional Zener diode rated at 68 V nominal voltage with a ±5% tolerance. It features a maximum power dissipation of 5 W and operates within a junction temperature range of -65°C to +200°C. The device utilizes a DO-201 axial through-hole package and exhibits a maximum dynamic impedance of 44 Ohms.

Feature Summary

• High thermal stability supporting operation up to 200°C junction temperature
• Robust 5 W power handling capability in an industry-standard axial package
• Precision voltage regulation with tight ±5% tolerance for stable reference applications

Applications

• Voltage regulation circuits requiring high power dissipation
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in industrial control systems

Procurement Notes

Verify the specific ordering suffix BK against manufacturer documentation to confirm plating specifications, as suffixes define physical attributes rather than electrical function. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer prior to finalizing procurement plans.

Selection Notes

Select this component when circuit designs demand high-power Zener regulation exceeding standard low-wattage limits. Ensure the system environment supports the specified wide operating temperature range and that the through-hole mounting style aligns with the printed circuit board layout requirements.

Part Context

This part belongs to the 1N53xx series of high-power Zener diodes manufactured by Central Semiconductor Corp. These devices are designed for robust voltage regulation tasks where standard small-signal diodes lack sufficient power handling capacity. The series provides reliable performance across demanding industrial and commercial environments.

Replacement Considerations

Public documentation lists CZ5373B as a replacement for the 1N5373B series.