The DTC124TKT146 is a digital transistor manufactured by Rohm Semiconductor. It's a bias resistor transistor (BRT), which integrates a transistor and bias resistors into a single compact package. This integration simplifies circuit design and reduces the number of external components needed, ultimately saving board space and cost.

Applications

• Digital circuit control
• Inverter circuits
• Driving LED displays
• Replacing discrete transistor and resistor combinations
• General switching applications

Features

• Built-in bias resistors (R1 = 22kΩ, R2 = 22kΩ)
• Reduces component count
• Simplifies circuit design
• Small SOT-346 package
• Lead-free construction

Benefits

• Space saving: The integrated resistors eliminate the need for external components, reducing board space requirements.
• Simplified design: Easier circuit design compared to using discrete components.
• Reduced cost: Lower component count translates to reduced BOM (Bill of Materials) cost.
• Improved reliability: Fewer solder joints lead to higher system reliability.
• Consistent performance: Integrated resistors ensure consistent bias conditions for the transistor.

Additional Details

The DTC124TKT146 is an NPN type digital transistor. The input resistor (R1) is 22kΩ, and the resistor between base and power supply (R2) is also 22kΩ. It comes in a SOT-346 package, which is suitable for high-density mounting. The transistor features a low saturation voltage, making it efficient for switching applications. The device is RoHS compliant, meaning it is lead-free and environmentally friendly. Key electrical characteristics include a collector-emitter voltage of 50V, a collector current of 100mA, and a power dissipation of 200mW.