495220TU

Single Bipolar Transistors Overview

The Fairchild Semiconductor 495220TU is an NPN Epitaxial Silicon Darlington Transistor. It features monolithic construction with built-in base-emitter resistors to simplify driver circuit design. The device provides high DC current gain, specified as a minimum of 750 at collector currents of 1.5 A and 2.0 A. It serves as the complementary counterpart to the KSE700, KSE701, KSE702, and KSE703 PNP Darlington transistors.

Single Bipolar Transistors Feature Summary

• Monolithic construction integrating internal base-emitter resistors for simplified drive requirements
• High DC current gain capability ensuring efficient switching performance
• Designed as the complementary NPN pair for the KSE700/701/702/703 series

Single Bipolar Transistors Applications

• Power switching applications requiring high gain
• Driver circuits for loads needing substantial base current isolation
• Complementary pairs in power amplifier stages

Single Bipolar Transistors Procurement Notes

Verify the specific manufacturer source, as Fairchild Semiconductor assets are now part of ON Semiconductor. Confirm RoHS compliance status and package availability, as legacy parts may have limited production runs or be subject to last-time-buy notices. Ensure the ordering suffix matches the required lead frame and plating specifications.

Single Bipolar Transistors Selection Notes

Select this component when a high-gain NPN Darlington transistor is required to complement existing PNP Darlington designs from the KSE700 series. Consider the internal base-emitter resistors for reducing standby current and simplifying interface logic. Verify thermal management requirements based on the expected load current and ambient operating conditions.

Single Bipolar Transistors Part Context

The 495220TU belongs to the family of high-power Darlington transistors manufactured by Fairchild Semiconductor. These devices are engineered for robust power handling and are often utilized in industrial and consumer electronics where high input impedance and significant current amplification are necessary. The complementary nature allows for balanced push-pull configurations.