DTC123JUBTL

Overview

The DTC123JUBTL is an NPN digital transistor manufactured by Rohm Semiconductor, featuring built-in biasing resistors to simplify circuit design. It operates with a collector-emitter voltage of 50 V and a continuous collector current of 100 mA. The device includes an input resistance (R1) of 2.2 kΩ and an emitter-base resistance (R2) of 47 kΩ. Key electrical characteristics include a DC current gain (hFE) of at least 80 at 10 mA and 5 V, and a transition frequency of 250 MHz. Power dissipation is rated at 200 mW. It is housed in a UMT3F (SC-85) surface-mount package.

Feature Summary

• Integrated biasing resistors eliminate the need for external input components, enabling straightforward inverter circuit configuration.
• High-speed switching capability supported by a 250 MHz transition frequency for efficient signal processing.
• Compact surface-mount packaging facilitates automated assembly and space-constrained board layouts.

Applications

• General-purpose logic level shifting and interface circuits
• Inverter configurations in digital control systems
• Switching applications in consumer electronics

Procurement Notes

Verify the complete ordering part number, including suffixes such as TL, TR, or CT, to ensure correct packaging format and tape-and-reel specifications. Confirm RoHS compliance status and check for automotive-grade variants if higher reliability standards are required. Ensure the selected variant matches the specific resistor values and package dimensions needed for the target application design.

Selection Notes

Select this component when an NPN pre-biased transistor with 2.2 kΩ base and 47 kΩ emitter resistors is required. Compare against complementary PNP types like the DTA123J series for push-pull configurations. Consider the UMT3F package size constraints and verify that the 200 mW power dissipation rating suits the thermal environment. Check supply status as standard versions may be recommended while others are not.

Part Context

This component belongs to the DTC123 family of digital transistors from Rohm Semiconductor. Variants within this family share similar electrical characteristics but differ in packaging, such as SOT-323FL or SOT-416, and resistor ratios. The DTC123JUBTL specifically utilizes the UMT3F package, distinguishing it from other pin-compatible or functionally similar parts in the broader product line.

Replacement Considerations

Direct substitutes include other DTC123 series variants with identical pinouts and electrical specs, such as DTC123JU3HZG for automotive applications. Verify compatibility with complementary PNP devices like DTA123JUBHZGTL if both polarities are needed in the design.