The DTZTT119.1B is a digital transistor manufactured by Rohm Semiconductor. It's a bias resistor transistor (BRT), meaning it incorporates a transistor along with integrated bias resistors. This simplifies circuit designs by reducing the number of external components required, saving space and lowering overall cost.

Applications

• Digital circuit control
• Switching circuits
• Inverter circuits
• Load switching applications
• Interface between logic circuits and actuators

Features

• Built-in bias resistors (R1 = 10kΩ, R2 = 10kΩ)
• Reduces component count
• Simplifies circuit design
• Small SOT-346 package
• Lead-free construction

Benefits

• Reduced board space: The integrated resistors minimize the need for external components, allowing for more compact designs.
• Simplified circuitry: Easier circuit implementation compared to using discrete components.
• Cost efficiency: Lower component count reduces the overall cost of materials.
• Increased reliability: Fewer solder joints enhance system reliability.
• Consistent biasing: Integrated resistors ensure stable bias conditions for the transistor.

Additional Details

The DTZTT119.1B is an NPN type digital transistor. The internal bias resistor (R1) is 10kΩ, and the resistor between base and power supply (R2) is also 10kΩ. It comes in a SOT-346 package suitable for high-density PCB assembly. The device is designed to offer a low saturation voltage, increasing efficiency in switching applications. It is RoHS compliant and halogen-free. Key parameters include a collector-emitter voltage rating, a collector current rating, and a power dissipation rating suitable for various low-power applications. Refer to the datasheet for specific values.