1N4748A BK PBFREE

Overview

The 1N4748A BK PBFREE is a unidirectional voltage regulator diode manufactured by Central Semiconductor Corp. It features a nominal Zener voltage of 22 V with a maximum steady-state power dissipation of 1 W. The component utilizes silicon technology and is housed in an axial DO-41 package. It operates within a temperature range of -65°C to +200°C and includes a glass encapsulation.

Feature Summary

• Provides stable voltage regulation at a nominal 22 V level
• Capable of handling 1 W of steady-state power dissipation
• Constructed using silicon semiconductor material

Applications

• Voltage regulation circuits
• Overvoltage protection applications
• Reference voltage generation

Procurement Notes

Verify the specific manufacturer source, as documentation indicates potential transfer or multiple production origins for this part number. Confirm RoHS compliance status and ensure the DO-41 axial lead configuration matches the target PCB layout requirements before finalizing procurement decisions.

Selection Notes

Select this component when a 22 V regulation point is required with 1 W power handling capability. Ensure the operating environment stays within the specified -65°C to +200°C junction temperature range. Verify that the axial through-hole mounting style fits the assembly constraints.

Part Context

This device belongs to the standard 1N47xx series of Zener diodes produced by Central Semiconductor. These components are widely used for general-purpose voltage regulation and reference applications in electronic circuits requiring reliable performance across a wide temperature spectrum.

Replacement Considerations

Publicly confirmed substitute part numbers were not identified in the provided data.