The UMH11 is a general-purpose NPN transistor manufactured by Rohm Semiconductor. It is designed for switching and amplification applications in a variety of electronic circuits. This transistor offers a balance of performance and cost-effectiveness, making it suitable for a wide range of applications.

Applications

• Switching circuits
• Amplifier circuits
• General-purpose amplification
• Driver circuits
• Digital logic circuits

Features

• NPN Silicon Transistor
• High current gain (hFE)
• Low saturation voltage
• Small Surface Mount Device (SMD) package
• RoHS compliant

Benefits

• Efficient switching performance
• Good amplification capabilities
• Reduces power loss in switching applications
• Compact size saves board space
• Environmentally friendly

Technical Specifications

The UMH11 has a collector-emitter voltage (VCEO) of 50V and a collector current (IC) of 150mA. Its typical current gain (hFE) is between 100 and 300. The saturation voltage (VCE(sat)) is low, typically around 0.3V. The transition frequency (fT) is 100 MHz. The operating temperature range is -55°C to +150°C. The device is available in a SOT-323 package for surface mount assembly. The power dissipation is around 200mW.

The UMH11's high current gain allows it to be used as a driver for higher current devices, while its low saturation voltage minimizes power loss when used as a switch. The small SOT-323 package is ideal for applications where board space is limited.

Due to its general-purpose nature and robust characteristics, the UMH11 is often used in various signal amplification and switching circuits found in consumer electronics, industrial equipment, and communication devices.