DTA114WKAT146

Overview

The DTA114WKAT146 is a digital transistor with built-in bias resistor, manufactured by Rohm Semiconductor. It integrates an NPN bipolar junction transistor and a single internal bias resistor in a compact surface-mount package. This configuration simplifies circuit design by reducing component count and board space requirements. The device is designed for switching applications where a base drive current is required to control the transistor's on/off state. Key electrical characteristics include specific DC current gain (hFE) ranges and voltage ratings defined in the official datasheet.

Feature Summary

• Integrates NPN transistor and bias resistor in a single package
• Simplifies circuit design by reducing external components
• Provides stable switching performance with minimal board space

Applications

• General-purpose switching circuits
• Driver circuits for logic interfaces
• Level shifting applications

Procurement Notes

Verify the exact part number against the manufacturer's official documentation to ensure compatibility with your specific application requirements. Check the datasheet for detailed electrical specifications, thermal characteristics, and recommended operating conditions. Confirm the packaging type and reel quantity if ordering in bulk. Ensure that the supplier provides genuine components with traceability.

Selection Notes

Select this component when a compact solution for NPN switching with integrated biasing is needed. Consider the internal resistance value and transistor current gain from the datasheet to match your circuit's drive requirements. Evaluate the package size constraints and thermal management needs for your specific PCB layout. Compare alternative digital transistors if different resistance values or configurations are required.

Part Context

The DTA114WK series belongs to Rohm's lineup of digital transistors, which combine bipolar transistors with resistors to simplify circuit design. These devices are commonly used in consumer electronics, industrial controls, and automotive applications where space efficiency and reliability are critical. The 'W' suffix typically indicates a specific package type, while 'KAT146' denotes the tape and reel packaging format.

Replacement Considerations

Consult the official Rohm Semiconductor replacement guide or cross-reference list for verified equivalent parts. Ensure any substitute matches the electrical characteristics, pinout, and package dimensions. Verify that the alternative component meets the same safety and quality standards required for your application.