DTC114WKAT146

Overview

The DTC114WKAT146 is a single NPN digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors for simplified circuit design. It operates with a collector-emitter voltage of up to 50V and supports a continuous collector current of 100mA. The device utilizes an SMT3 (SOT-346) surface-mount package, suitable for automated assembly processes. Key electrical characteristics include a minimum DC current gain (hFE) of 24 and a maximum power dissipation of 200mW. The component is designed for high-temperature environments, with a maximum operating temperature of +150°C, ensuring reliability in demanding applications.

Feature Summary

• Integrates internal bias resistors to eliminate external components and simplify inverter circuit configuration.
• Provides stable switching performance with a high maximum operating temperature rating of +150°C.
• Utilizes a compact SMT3 surface-mount package for efficient space utilization on printed circuit boards.

Applications

• General-purpose switching circuits requiring simple interface logic.
• Driver stages for low-current loads in consumer electronics.
• Interface applications between microcontrollers and peripheral devices.

Procurement Notes

Verify the specific suffix 'T146' corresponds to the required tape-and-reel packaging quantity and orientation before ordering. Confirm that the SMT3 package dimensions align with the target PCB footprint. Ensure the supply chain source provides authentic ROHM Semiconductor products to guarantee compliance with the specified electrical parameters and thermal ratings.

Selection Notes

Select this component when a single NPN digital transistor with 10kΩ input resistance is required in a small outline package. Compare the 100mA collector current limit against load requirements. Consider the 200mW power dissipation capability relative to ambient temperature conditions. Verify compatibility with existing BOM standards for the SMT3 package type.

Part Context

This part belongs to the DTC114EK series of digital transistors from ROHM Semiconductor. The series offers various configurations including different resistance ratios and package types such as SOT-23 and SOT-323. The DTC114WKAT146 specifically denotes the NPN variant with built-in resistors in the SMT3 package, distinguishing it from complementary PNP types or other resistance values within the same family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official ROHM Semiconductor resources for qualified alternatives or cross-reference with equivalent NPN digital transistors meeting identical voltage, current, and package specifications.