The KRC245S-RTK/P is a digital transistor (BRT - Bias Resistor Transistor) manufactured by KEC. It integrates a transistor and a resistor network into a single package, simplifying circuit design and reducing component count. This device is commonly used as an inverter or driver in digital circuits.

Applications:

• Inverter Circuits: Used as an inverter in digital logic circuits.
• Driver Circuits: Drives LEDs, relays, and other low-power loads.
• Switching Circuits: Used as a switch to control the flow of current in various electronic circuits.
• Level Shifters: Shifts voltage levels between different logic families.
• General Purpose Amplification: Used as a general purpose amplifier in low-frequency applications.

Features:

• Built-in Resistors: Integrated base-emitter and base resistors simplify circuit design.
• Small Package: Compact SOT-23 package for space-saving designs.
• Low Saturation Voltage: Minimizes power loss when the transistor is in the ON state.
• Fast Switching Speed: Enables fast switching in digital circuits.
• Halogen-Free: Environmentally friendly halogen-free construction.

Benefits:

• Reduced Component Count: Integrated resistors reduce the number of external components required.
• Simplified Design: Eliminates the need to calculate and select external resistor values.
• Space Saving: Compact package saves valuable board space.
• Improved Performance: Low saturation voltage and fast switching speed enhance circuit performance.
• Cost Effective: Reduces overall system cost by integrating multiple components into a single device.

Additional Details:

The KRC245S-RTK/P has a collector-emitter voltage of 50V and a collector current of 100mA. The input resistor is 4.7 kΩ and the resistor between base and emitter is 47 kΩ. The power dissipation is 200 mW. The operating temperature range is -55°C to +150°C. The package is SOT-23.