2N3743U4

Single Bipolar Transistors Overview

The 2N3743U4 is a PNP silicon power bipolar junction transistor manufactured by Microchip Technology. It features a collector-emitter breakdown voltage of 300V and a maximum continuous collector current of 200mA. The device is rated for a total power dissipation of 1W. It utilizes the U4 surface-mount package, designed for high-voltage applications requiring robust switching capabilities in compact form factors.

Single Bipolar Transistors Feature Summary

• High voltage capability with 300V collector-emitter breakdown rating
• Surface-mount U4 package design for automated assembly
• PNP silicon construction optimized for power switching

Single Bipolar Transistors Applications

• High-voltage switching circuits
• Power supply output stages
• Industrial control systems

Single Bipolar Transistors Procurement Notes

Verify the specific manufacturer source when sourcing this component, as it may be available from multiple distributors holding inventory under the same part number. Confirm that the received units match the Microchip Technology specification sheet regarding the U4 package dimensions and electrical characteristics to ensure compatibility with high-voltage designs.

Single Bipolar Transistors Selection Notes

Select this component for designs requiring a PNP transistor with a minimum 300V blocking voltage and 200mA current handling in a surface-mount configuration. Ensure the thermal management strategy accounts for the 1W power dissipation limit within the U4 package constraints during operation.

Single Bipolar Transistors Part Context

This part belongs to the general-purpose PNP transistor family specified for military and industrial standards. The U4 suffix indicates a specific surface-mount variant distinct from through-hole equivalents like the standard 2N3743, offering different mechanical mounting requirements while maintaining similar electrical performance profiles.

Single Bipolar Transistors Replacement Considerations

Public confirmed substitutes include the 2N4930, 2N4930U4, 2N4931, and 2N4931U4. These parts share similar PNP silicon specifications and are listed under the same performance specification documents.