2SD1802T-E

Single Bipolar Transistors Overview

The Fairchild Semiconductor 2SD1802T-E is a single NPN bipolar junction transistor (BJT) designed for through-hole mounting in TO-251-3 packages. It features a maximum collector-emitter voltage of 50 V and a continuous collector current rating of 5 A. The device exhibits a transition frequency of 150 MHz and a power dissipation capacity of 1 W. Key electrical characteristics include a collector-base voltage of 60 V, an emitter-base voltage of 6 V, and a maximum DC current gain of 200 at 100 mA. The component supports operating temperatures up to +150°C.

Single Bipolar Transistors Feature Summary

• Single NPN configuration optimized for general-purpose switching and amplification applications
• High current handling capability with a 5 A continuous collector current rating
• Robust thermal performance supporting junction temperatures up to 150°C
• Through-hole compatible TO-251-3 package design for reliable PCB integration

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Low-frequency amplification stages
• Power supply output regulation
• Driver circuits for loads requiring moderate current

Single Bipolar Transistors Procurement Notes

Verify the manufacturer designation carefully, as this component is listed under both Fairchild Semiconductor and onsemi due to corporate acquisition history. Confirm the specific suffix matches the required package and compliance standards. Check current lifecycle status, as availability may vary between distributors. Ensure the ordering part number aligns with the desired tape or bulk packaging format specified in the official datasheet.

Single Bipolar Transistors Selection Notes

Select this component when a single NPN transistor with 50 V breakdown and 5 A current capacity is required in a TO-251-3 form factor. Consider the 150 MHz transition frequency for applications involving moderate-speed switching. Evaluate the 1 W power dissipation limit against thermal management constraints. Compare saturation voltage specifications if low-loss conduction is critical for the target circuit design.

Single Bipolar Transistors Part Context

The 2SD1802 series represents a line of silicon NPN power transistors historically manufactured by Fairchild Semiconductor. Following the merger with onsemi, production and documentation responsibilities have been consolidated. This specific model utilizes a three-terminal through-hole structure suitable for standard printed circuit board assembly techniques common in industrial and consumer electronics hardware.

Single Bipolar Transistors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.