KSH122TF

Single Bipolar Transistors Overview

The KSH122TF is an NPN silicon Darlington transistor manufactured by onsemi, designed for general-purpose power and switching applications. It features a D-PAK (TO-252) surface-mount package with lead-formed terminals. Key electrical specifications include a collector-emitter voltage of 100 V, a continuous DC collector current of 8 A, and a maximum power dissipation of 20 W at 25°C case temperature. The device exhibits a high DC current gain ranging from 100 to 12,000 under specified conditions.

Single Bipolar Transistors Feature Summary

• High DC current gain suitable for driver stages
• Integrated damper diode between emitter and collector
• Surface-mount D-PAK package optimized for automated assembly

Single Bipolar Transistors Applications

• Switching regulators
• Power converters
• Power amplifiers

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix 'TF' corresponds to the tape and reel packing method in the TO-252 3L package. Confirm that the component meets the required RoHS compliance standards for your manufacturing process. Ensure the design accounts for the thermal derating characteristics provided in the datasheet to maintain reliability within the specified junction temperature limits.

Single Bipolar Transistors Selection Notes

Select this component when a high-gain NPN switch is required in a surface-mount configuration. It serves as an electrically similar alternative to the popular TIP122 but in a compact D-PAK form factor. Consider the integrated E-C damper diode if flyback protection is needed without adding external components. Verify that the 8 A current rating aligns with the peak load requirements of the target circuit.

Single Bipolar Transistors Part Context

This part belongs to the KSH122 series of NPN silicon Darlington transistors produced by onsemi. It is functionally complementary to the KSH127 PNP variant. The series is engineered for robust performance in power electronics, offering a balance of high current handling and significant current amplification in a standardized surface-mount footprint.

Single Bipolar Transistors Replacement Considerations

The datasheet explicitly states the device is electrically similar to the TIP122. Designers may consider the TIP122 as a direct functional substitute if through-hole packaging is acceptable. No other specific cross-reference part numbers are confirmed in the official documentation.