The UMH11-NTR is a digital transistor manufactured by Rohm Semiconductor. This component integrates a transistor and biasing resistors into a single, compact package, designed to simplify circuit design and minimize board space. It is commonly employed in applications requiring efficient switching and amplification, particularly in digital circuits.

Applications:

• Inverter Circuits
• Load Switching
• Digital Logic Circuits
• Control Circuits

Features:

• Integrated Bias Resistors: Simplifies circuit design by eliminating the need for external biasing resistors.
• Compact SOT-346 Package: Reduces board space requirements.
• NPN Transistor Configuration: Suitable for a wide range of switching and amplification applications.
• Tape and Reel Packaging: Facilitates automated assembly processes.
• RoHS Compliant: Environmentally friendly, adhering to RoHS standards.

Benefits:

• Reduced Component Count: Simplifies PCB layout and reduces assembly costs.
• Improved Circuit Reliability: Fewer external components contribute to a more robust design.
• Space-Saving Solution: Ideal for compact electronic devices.
• Faster Switching Speeds: Enhances circuit performance in high-frequency applications.
• Simplified Manufacturing: Tape and reel packaging streamlines automated assembly.

The UMH11-NTR features an NPN transistor with integrated base and emitter resistors. The resistor values are carefully selected to provide optimal biasing conditions for the transistor, ensuring reliable and predictable performance. The device is housed in a small SOT-346 surface-mount package, making it suitable for high-density circuit boards. This pre-biased transistor simplifies circuit design and assembly processes, contributing to overall system efficiency.

Technical Specifications (Typical):

• Transistor Type: NPN
• Resistor R1 Value: 10 kΩ (Typical)
• Resistor R2 Value: 10 kΩ (Typical)
• Package Type: SOT-346
• Maximum Collector Current (Ic): 100 mA
• Maximum Collector-Emitter Voltage (Vceo): 50 V