DTC144GUAT106

Overview

The DTC144GUAT106 is a single NPN digital transistor manufactured by Rohm Semiconductor, designed for surface-mount applications in the UMT3 (SC-70/SOT-323) package. It integrates an internal base resistor (R1) of 47 kOhms to simplify circuit design. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current (Ic) of 100 mA. The device features a transition frequency (fT) of 250 MHz and a maximum power dissipation (Pd) of 200 mW. DC current gain (hFE) is specified at a minimum of 68 under test conditions of Ic=5mA and Vce=5V. The saturation voltage (Vce(sat)) is limited to 300 mV at Ib=500µA and Ic=10mA.

Feature Summary

• Integrates a 47 kOhm base resistor within a compact SMD package to reduce component count and board space.
• Optimized for high-speed switching with a 250 MHz transition frequency suitable for digital logic interfaces.
• Provides low saturation voltage characteristics to minimize power loss during conduction states.

Applications

• General-purpose digital switching in consumer electronics
• Interface circuits between microcontrollers and peripheral devices
• Level shifting and buffer stages in portable equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest datasheet to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Cross-reference the distributor part number with the original manufacturer identifier to avoid counterfeit components. Ensure storage conditions align with the specified humidity sensitivity等级.

Selection Notes

Select this component when a pre-biased NPN transistor with a 47 kOhm base resistor is required. Compare the 50 V voltage rating and 100 mA current capacity against load requirements. Evaluate the UMT3 package dimensions for PCB layout constraints. Consider the 250 MHz frequency response for signal integrity in high-speed digital designs.

Part Context

This part belongs to the DTC144 series of pre-biased transistors from Rohm Semiconductor. It is distinct from similar models like the DTC124GUAT106, which integrates an emitter resistor instead of a base resistor. The DTC144 series is designed to replace discrete resistor-transistor combinations, offering improved reliability and reduced assembly time in compact electronic systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the available documentation. Verify compatibility with alternative suppliers such as Diodes Incorporated or Toshiba only if their datasheets explicitly state pin-compatible and electrically equivalent specifications for the DTC144 series.