The DTD523YE is a digital transistor (Bias Resistor Transistor - BRT) manufactured by Rohm Semiconductor. It integrates a transistor and resistors into a single small package, simplifying circuit design and reducing component count. This NPN transistor features built-in bias resistors that eliminate the need for external resistors, streamlining the design process and saving board space.

Applications

• Digital circuits
• Switching applications
• Inverter circuits
• Driving LEDs
• Load switching

Features

• Built-in bias resistors (R1 = 2.2kΩ, R2 = 47kΩ)
• Reduces component count
• Simplifies circuit design
• Small Surface Mount Device (SMD) package
• NPN Transistor

Benefits

• Simplified Circuit Design: The integrated bias resistors eliminate the need for external components, streamlining the design process.
• Reduced Component Count: By combining the transistor and resistors into a single package, the number of components on the PCB is reduced, leading to a smaller and more efficient design.
• Space Saving: The small SMD package allows for a more compact circuit layout, which is particularly important in space-constrained applications.
• Improved Reliability: The integrated design reduces the number of solder joints, improving the overall reliability of the circuit.
• Cost Effective: Minimizing external components helps to reduce the overall cost of the application.

Technical Specifications: The DTD523YE has a collector-emitter voltage (VCEO) of 50V, a collector current (IC) of 100mA, and a power dissipation of 200mW. The input resistor (R1) is 2.2kΩ, and the resistor ratio (R2/R1) is approximately 21.36. This device is commonly available in a SOT-346 package. The typical turn-on and turn-off times are in the nanosecond range, making it suitable for high-speed switching applications.