DTC323TUT106

Overview

The DTC323TUT106 is an NPN digital transistor with built-in resistors manufactured by ROHM Semiconductor. It features a single configuration in a SOT-323 (UMT3) surface-mount package. Key electrical parameters include a collector-emitter voltage (VCEO) of 50 V, a continuous collector current (Io) of 0.1 A, and a power dissipation (PD) of 0.2 W. The device incorporates an input resistance (R1) of 47 kΩ and an emitter-base resistance (R2) of 47 kΩ. The DC current gain (hFE) ranges from 100 to 600 at a collector current of 1 mA and VCE of 5 V. Operating temperatures span from -55°C to +150°C.

Feature Summary

• Integrates biasing resistors directly with the transistor to simplify circuit design and reduce component count.
• Utilizes a compact SOT-323 surface-mount package for efficient space utilization on printed circuit boards.
• Provides high reliability through RoHS compliance and lead-free manufacturing processes.

Applications

• General-purpose switching circuits
• Interface circuits between logic gates and loads
• Driver circuits for low-power devices

Procurement Notes

Verify the specific ordering suffix against official ROHM documentation to confirm packaging details and tape-and-reel specifications. Ensure compatibility with automated pick-and-place equipment requirements. Confirm that the selected variant meets all necessary environmental and regulatory standards for the intended deployment environment before finalizing procurement orders.

Selection Notes

Select this component when a compact NPN digital transistor with 50 V rating and 0.1 A current capacity is required. Verify that the integrated 47 kΩ input and output resistances align with the target logic levels and drive requirements. Consider the thermal characteristics and maximum operating temperature limits relative to the expected ambient conditions of the application.

Part Context

This part belongs to the ROHM DTC series of bias resistor built-in transistors. These components are designed to replace discrete resistor-transistor combinations, offering a standardized solution for digital switching applications. The series includes various configurations with different resistance values and polarity options to suit diverse electronic design needs.

Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's portfolio or other vendors offering identical electrical specifications and package dimensions. Ensure any substitute maintains the same voltage, current, and resistance ratings to guarantee functional equivalence without redesigning the surrounding circuitry.

FAQ

What is the typical resistance value for R1 and R2 in the DTC323TU?

Both the input resistance (R1) and the emitter-base resistance (R2) are typically 47 kΩ.

Is the DTC323TU suitable for automotive applications?

Standard versions like the DTC323TU are generally not recommended for automotive use unless specifically designated as AEC-Q101 qualified.

What is the maximum junction temperature for this device?

The maximum storage and operating temperature range extends up to +150°C.