2SD1668R

Single Bipolar Transistors Overview

The onsemi 2SD1668R is an NPN power bipolar junction transistor (BJT) designed for high-current switching and amplification applications. It features a collector current rating of 7A and a collector-emitter voltage rating of 50V. The device is housed in a TO-220AB package, providing robust thermal performance suitable for power electronics. This component serves as a reliable solution for general-purpose power control tasks requiring moderate voltage handling and significant current capacity.

Single Bipolar Transistors Feature Summary

• NPN power bipolar junction transistor configuration
• High current switching capability rated at 7A
• TO-220AB through-hole package for efficient heat dissipation

Single Bipolar Transistors Applications

• General-purpose power switching circuits
• Amplifier stages in audio or signal processing equipment
• Relay driver circuits
• Power supply output regulation

Single Bipolar Transistors Procurement Notes

Verify the exact datasheet revision and manufacturer source when sourcing this component. Ensure the TO-220AB package matches your PCB footprint requirements. Confirm that the 50V voltage rating and 7A current limit align with your specific circuit design constraints before finalizing procurement decisions.

Single Bipolar Transistors Selection Notes

Select this component for designs requiring NPN BJT topology with moderate voltage isolation. Consider thermal management strategies due to the power dissipation inherent in 7A operation. Evaluate alternative packages if space constraints exist, though the TO-220AB offers superior thermal characteristics compared to smaller surface-mount options.

Single Bipolar Transistors Part Context

This part belongs to the broader category of discrete power transistors used in industrial and consumer electronics. Bipolar junction transistors like the 2SD1668R remain relevant for linear and switching applications where cost-effectiveness and proven reliability are prioritized over the ultra-fast switching speeds of modern MOSFETs.

Single Bipolar Transistors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official cross-reference lists from authorized distributors or verify equivalent specifications from other manufacturers such as Fairchild Semiconductor prior to implementation.