DTC124EETL

Overview

The DTC124EETL is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an EMT3 (SOT-416) surface-mount package. It integrates bias resistors R1 and R2, both typically 22 kOhms, to simplify circuit design. Key electrical parameters include a collector-emitter breakdown voltage of 50 V, a continuous collector current of 30 mA, and a transition frequency of 250 MHz. The device features a maximum power dissipation of 150 mW and a low saturation voltage of 300 mV at specified currents. It operates within a storage temperature range of -55°C to +150°C.

Feature Summary

• Integrates built-in bias resistors to eliminate external input resistor requirements for inverter circuits.
• Provides simplified on/off control logic through pre-biased internal structure.
• Offers high-speed switching capability with a 250 MHz transition frequency.

Applications

• Inverter circuits requiring compact component count
• Interface logic level shifting between microcontrollers and peripherals
• Driver stages for small-signal loads

Procurement Notes

Verify the specific suffix ETL against the manufacturer's datasheet to confirm the exact packaging type, such as cut tape or reel configuration. Ensure the ordering quantity aligns with the minimum packing quantity defined in the official documentation. Cross-reference the RoHS compliance status directly from the source document before procurement.

Selection Notes

Select this component when a single NPN digital transistor with equal base and emitter resistors (22 kOhms each) is required. It is suitable for applications needing a 50 V collector-emitter voltage rating and 30 mA continuous current capacity. Consider the EMT3 package size constraints and the 150 mW power dissipation limit during thermal analysis.

Part Context

This part belongs to the DTC124 series of bias resistor built-in transistors from ROHM Semiconductor. The series includes complementary PNP types like the DTA124 series. The DTC124EETL specifically denotes the NPN variant with standard resistor values in the SOT-416/EMT3 package format.

Replacement Considerations

Direct pin-compatible replacements within the same family include DTC124EE3TL. Verify that substitute parts maintain identical resistor ratios and voltage ratings to ensure circuit compatibility without redesign.