1N5348B BK

Overview

The Central Semiconductor Corp 1N5348B BK is a silicon Zener diode with a nominal voltage of 11 V and a power dissipation rating of 5 W. It utilizes the DO-201 axial through-hole package and operates within a temperature range of -65 °C to +200 °C. The device features a 5% voltage tolerance, a maximum reverse leakage current of 5 µA at 8.4 V, and a Zener impedance of 2.5 Ohms. It is designed for high-reliability applications requiring stable voltage regulation.

Feature Summary

• High-reliability construction suitable for demanding environments
• Built-in strain relief case design for mechanical stability
• Wide operating temperature range extending up to +200 °C

Applications

• Voltage reference circuits
• Overvoltage protection systems
• Power supply regulation

Procurement Notes

Verify the specific ordering suffix required for your application. The 'BK' designation indicates bulk packaging. Confirm plating options by adding 'TIN/LEAD' or 'PBFREE' to the part number when placing orders. Ensure compatibility with existing lead-free regulations if applicable.

Selection Notes

Select this component for designs requiring a 5 W power rating in an axial package. Verify that the 11 V breakdown voltage aligns with circuit requirements. Consider the 2.5 Ohm impedance for dynamic load conditions. Ensure the thermal management strategy supports operation up to the maximum junction temperature.

Part Context

This device belongs to the 1N53xx series of 5 W Zener diodes manufactured by Central Semiconductor. These components are widely used in industrial and military-grade electronics where robust performance and long-term reliability are critical. The DO-201 package provides a standard footprint for through-hole mounting on printed circuit boards.

Replacement Considerations

According to official documentation, the CZ5348B serves as a replacement for the 1N5348B.