The KTC4079 is a silicon PNP epitaxial planar transistor manufactured by KEC (Korea Electronics Co., Ltd.). It is designed for use in a wide range of general-purpose amplifier and switching applications.

Applications:

• General Purpose Amplification
• Switching Circuits
• Inverter Circuits
• Driver Stages
• Load Switches

Features:

• High Collector Current (Ic): Allows for operation in circuits requiring a moderate current drive.
• Low Saturation Voltage: Ensures minimal power loss during switching.
• High Transition Frequency (fT): Suitable for use in medium-frequency circuits.
• Epitaxial Planar Structure: Offers enhanced reliability and performance.
• Compact Package: Facilitates use in space-constrained applications.

Benefits:

• Efficient Amplification: Delivers good gain characteristics for signal amplification.
• Effective Switching: Low saturation voltage improves switching efficiency.
• Reliable Performance: Epitaxial planar construction ensures stable operation.
• Space-Saving Design: Compact package allows for high-density circuit layouts.
• Versatile Applications: Suitable for diverse amplification and switching tasks.

Technical Specifications:

The KTC4079 features a collector-emitter voltage (Vceo) of -50V, a collector current (Ic) of -0.15A, and a power dissipation of 0.25W. The transition frequency (fT) is approximately 180 MHz. The transistor is typically housed in a SOT-23 package. The DC current gain (hFE) typically ranges from 120 to 270, providing consistent amplification characteristics. It is often employed in applications where a reliable and compact PNP transistor is needed for either amplification or switching functionalities.