KSE701STU

Single Bipolar Transistors Overview

The KSE701STU is a PNP epitaxial silicon Darlington transistor manufactured by onsemi, formerly Fairchild Semiconductor. It features a collector-emitter voltage rating of -60 V and a continuous collector current capacity of 4 A. The device provides a minimum DC current gain (hFE) of 750 at collector currents of -1.5 A and -2.0 A. It is housed in a TO-126 flange mount package with three terminals: Emitter, Collector, and Base.

Single Bipolar Transistors Feature Summary

• Monolithic construction incorporating built-in base-emitter resistors for simplified drive circuitry.

Single Bipolar Transistors Applications

• High-current switching applications requiring high gain amplification.

Single Bipolar Transistors Procurement Notes

Verify the manufacturer origin as this component was originally produced by Fairchild Semiconductor before its acquisition by onsemi. Confirm that the specific ordering suffix matches the required package and lead-free specifications. Ensure the procurement source provides valid datasheets reflecting the original Fairchild specifications.

Single Bipolar Transistors Selection Notes

Select the KSE701STU when a high-gain PNP Darlington configuration is required for driving loads up to 4 A. Compare against the complementary NPN KSE801STU for push-pull designs. Verify thermal management requirements for the TO-126 package based on the 40 W dissipation rating at 25°C case temperature.

Single Bipolar Transistors Part Context

This component belongs to the KSE700 series of PNP Darlington transistors, which also includes the KSE700, KSE702, and KSE703 variants. These devices are designed as complements to the KSE800 series NPN transistors. The series utilizes monolithic construction to provide high current gain and low saturation voltages suitable for power switching.

Single Bipolar Transistors Replacement Considerations

• KSE801STU

Single Bipolar Transistors FAQ

What is the minimum DC current gain for the KSE701STU?

The minimum DC current gain (hFE) is 750 at a collector current of -1.5 A and -2.0 A.

Does the KSE701STU include internal resistors?

Yes, the device features monolithic construction with built-in base-emitter resistors.