KSC1173YTSTUA

Single Bipolar Transistors Overview

The KSC1173YTSTUA is an NPN epitaxial silicon transistor manufactured by ON Semiconductor, formerly Fairchild. It features a collector current of 3 A and collector dissipation of 10 W at 25°C case temperature. The device has a collector-emitter breakdown voltage of 30 V and a collector-base breakdown voltage of 30 V. It operates with a junction temperature up to 150 °C and is housed in a TO-220 package.

Single Bipolar Transistors Feature Summary

• Designed for low frequency power amplifier applications
• Suitable for use in power regulator circuits
• Complements the KSA473 PNP transistor

Single Bipolar Transistors Applications

• Low frequency power amplifiers
• Power regulators

Single Bipolar Transistors Procurement Notes

Verify the exact ordering suffix against the official ON Semiconductor database to ensure correct packaging and tape-and-reel specifications. Confirm that the component meets RoHS compliance requirements for your specific manufacturing process. Check for any recent part number changes resulting from the Fairchild Semiconductor integration into ON Semiconductor.

Single Bipolar Transistors Selection Notes

Select this component when designing circuits requiring an NPN power transistor with a 3 A continuous collector current capability. Ensure the thermal management system can maintain the case temperature at or below 25°C to achieve the rated 10 W dissipation. Verify that the 30 V breakdown voltage aligns with the maximum operating voltages in the target application circuit.

Single Bipolar Transistors Part Context

This component belongs to the KSC1173 series of NPN epitaxial silicon transistors. Originally produced by Fairchild Semiconductor, it is now managed under the ON Semiconductor portfolio following their corporate integration. The device is specifically engineered for general-purpose power switching and amplification tasks within standard industrial electronics.

Single Bipolar Transistors Replacement Considerations

The datasheet identifies the KSA473 as the complementary PNP transistor for this device family.