1N5338B BK

Single Zener Diodes Overview

The Central Semiconductor Corp 1N5338B BK is a 5.0-watt Zener diode designed for voltage regulation applications. It features an axial-lead plastic encapsulated Surmetic 40 package, providing protection in common environmental conditions. The device offers tight voltage limits and superior operating characteristics typical of silicon-oxide passivated junctions. Standard tolerance is ±5%, with options for tighter tolerances available via specific suffixes. The component supports high maximum DC currents when paired with adequate heat sinking due to its low thermal resistance design.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad range of operating currents and temperatures
• Utilizes silicon-oxide passivated junctions for improved electrical performance
• Features a robust axial-lead transfer-molded plastic package for environmental protection

Single Zener Diodes Applications

• Voltage regulation circuits requiring 5-watt power dissipation
• Power supply reference designs
• Over-voltage protection stages

Single Zener Diodes Procurement Notes

Verify the exact Zener voltage value corresponding to the '38' designation in the official datasheet before ordering. Confirm that the 'BK' suffix aligns with the required plating or packaging specifications for your assembly process. Ensure compatibility with the Surmetic 40 footprint during PCB layout. Cross-reference the manufacturer's latest End of Life notifications to confirm current production status.

Single Zener Diodes Selection Notes

Select this component when a 5-watt power rating is necessary for voltage regulation tasks. Consider the Surmetic 40 package dimensions for mechanical clearance. Evaluate thermal management requirements if operating near maximum current limits. Compare against lower-power alternatives like the DO-35 series if system constraints allow reduced wattage.

Single Zener Diodes Part Context

This part belongs to the JEDEC registered 1N5333 through 1N5388B series of 5.0-watt Zener diodes. The series covers a wide voltage selection from 3.3V to 200V. The 'B' suffix typically indicates a standard ±5% voltage tolerance. These devices are engineered for general-purpose regulation where higher power handling is required compared to smaller signal diodes.

Single Zener Diodes Replacement Considerations

Central Semiconductor lists CZ5338B as the direct replacement for the 1N5338B.