DTC124EUBTL

Overview

The DTC124EUBTL is a pre-biased PNP digital transistor manufactured by ROHM Semiconductor. It integrates bias resistors (R1 and R2) within a single UMT3F surface-mount package to simplify circuit design. Key electrical specifications include a collector-emitter voltage (VCEO) of -50 V, a continuous collector current (Ic) of -30 mA, and a DC current gain (hFE) minimum of 56 at 5 mA and 5 V. The device features a transition frequency of 250 MHz, a power dissipation rating of 200 mW, and an emitter-base voltage (VEBO) of 5 V. Internal resistances are typically 22 kOhms for both R1 and R2.

Feature Summary

• Integrates built-in biasing resistors (R1=22kΩ, R2=22kΩ) to eliminate external input resistor requirements.
• Enables simple inverter circuit configuration by requiring only on/off condition settings.
• Provides compact surface-mount packaging suitable for space-constrained designs.

Applications

• Inverter circuits
• Interface driver applications
• General-purpose digital switching

Procurement Notes

Verify the specific suffix TL against the manufacturer's datasheet to confirm tape-and-reel packaging and quantity per reel. Ensure the component meets RoHS compliance requirements for the target assembly process. Cross-reference the UMT3F footprint with PCB library standards before finalizing procurement orders.

Selection Notes

Select this PNP variant when complementary logic or negative supply rail control is required. Verify that the -30 mA collector current limit satisfies the load requirements. Confirm that the 22 kOhm internal resistor values provide appropriate base drive currents for the intended application voltage levels without exceeding power dissipation limits.

Part Context

This component belongs to the DTA124 series of pre-biased transistors from ROHM Semiconductor. It serves as the PNP counterpart to the NPN DTC124E series. The UMT3F package offers a small form factor compared to traditional discrete transistor arrangements with external biasing networks.

Replacement Considerations

• PDTA124EU,135 (Nexperia)

FAQ

What are the internal resistor values for the DTC124EUBTL?

The device includes built-in bias resistors where both R1 (base resistor) and R2 (emitter resistor) are typically 22 kOhms.

Is the DTC124EUBTL qualified for automotive applications?

No, official documentation states that this standard-grade product is not recommended for use in automotive equipment.

What is the maximum collector current for this PNP transistor?

The maximum continuous collector current (Ic) is specified as -30 mA.