DTC124XETL

Overview

The DTC124XETL is a single NPN digital transistor manufactured by Rohm Semiconductor, housed in an EMT3 (SOT-416) surface-mount package. It integrates bias resistors with typical values of R1 = 22 kOhms and R2 = 47 kOhms. The device supports a collector current of 50 mA and a supply voltage of 50 V. Key electrical parameters include a DC current gain (hFE) of at least 68 at 5 mA/5 V, a transition frequency of 250 MHz, and a maximum power dissipation of 150 mW. The saturation voltage is specified at 300 mV under specific test conditions.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design by eliminating the need for external input components.
• Functions as a pre-biased transistor capable of operating as an inverter circuit with simple on/off control.
• Utilizes a compact SMD footprint suitable for space-constrained electronic applications.

Applications

• Inverter circuits requiring simplified input stages
• Interface driving for logic level translation
• General-purpose switching applications in consumer electronics

Procurement Notes

Verify the specific suffix 'ETL' against the manufacturer's latest datasheet to confirm the tape-and-reel packaging configuration and quantity. Ensure compatibility with standard SMT assembly processes for the EMT3 package. Cross-reference RoHS compliance status with current regulatory requirements before finalizing procurement orders.

Selection Notes

Select this component when a compact NPN digital transistor with integrated biasing is required for low-power switching. The 50 mA collector current rating suits light-load applications. Consider the 250 MHz transition frequency for moderate-speed signal processing. Verify that the 150 mW power dissipation limit aligns with the thermal constraints of the target PCB layout.

Part Context

This part belongs to the DTC124 series of digital transistors from Rohm Semiconductor. The series offers various package options including SOT-323 and SOT-723 variants. The DTC124XETL specifically utilizes the EMT3 package, providing a balance between component count reduction and board space efficiency for standard digital logic interfaces.

Replacement Considerations

Direct pin-compatible substitutes within the same family include DTC124XEFRATL and DTC124XU3T106. Verify that alternative packages maintain identical electrical characteristics and resistor values. Confirm that any replacement meets the same AEC-Q101 qualification if automotive reliability is required.