DTA124EU3T106

Overview

The DTA124EU3T106 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-323-3 (UMT3) surface-mount package. It integrates internal bias resistors to simplify circuit design. Key electrical parameters include a collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 100 mA. The device features a typical base resistor (R1) of 22 kOhms with a resistance ratio of 1. It supports a maximum operating frequency of 250 MHz and has a power dissipation rating of 200 mW. The unit weight is 61 mg, and it operates up to a maximum temperature of +150 C.

Feature Summary

• Integrates built-in bias resistors to eliminate the need for external components in switching applications.
• Designed for high-speed operation with a transition frequency of 250 MHz.
• Utilizes a compact SOT-323-3 package suitable for space-constrained surface-mount designs.

Applications

• General-purpose digital switching circuits
• Interface circuits between logic gates and loads
• Inverter circuits requiring simplified input networks

Procurement Notes

Verify the specific suffix T106 against the manufacturer's latest datasheet to confirm packaging details and compliance status. Ensure the ordering quantity aligns with standard reel sizes if bulk procurement is required. Cross-reference the Mouser part number 755-DTC124XU3T106 or similar identifiers for accurate sourcing channels.

Selection Notes

Select this component when a single NPN digital transistor with a 50 V rating and 100 mA current capacity is needed. The 22 kOhm base resistor value suits standard logic interface applications. Consider the SOT-323-3 footprint constraints during PCB layout. Verify thermal management requirements given the 200 mW power dissipation limit in enclosed environments.

Part Context

This part belongs to the ROHM DTC series of pre-biased transistors. These devices combine a single bipolar junction transistor with internal resistors to reduce board space and assembly costs. The EU3 suffix typically denotes the SOT-323 package variant within this product line.

Replacement Considerations

Direct substitutes may include other NPN digital transistors with identical pinouts and similar electrical ratings, such as the DTC124 series variants from ROHM or equivalent parts from manufacturers like ON Semiconductor or Diodes Inc., provided the package and resistor values match.