DTC114YKAT146

Overview

The DTC114YKAT146 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SMT-3 (SOT-23) surface-mount package. It integrates bias resistors to simplify circuit design. Key electrical parameters include a maximum collector current of 100 mA and a maximum operating frequency of 250 MHz. The device features a minimum DC current gain (hFE) of 24 at specified conditions. Power dissipation is rated at 200 mW, with a maximum junction temperature of +150°C. The typical input resistance is 10 kOhms, and the resistor ratio is 0.2.

Feature Summary

• Integrates built-in bias resistors to enable inverter circuit configuration without external input components.
• Provides high-speed switching capability suitable for digital logic applications.

Applications

• Digital logic interface circuits
• Inverter circuits
• Switching applications

Procurement Notes

Verify component authenticity through authorized ROHM distributors or certified partners. Confirm that the received part matches the DTC114YKAT146 marking and packaging specifications. Ensure storage and handling comply with moisture sensitivity levels defined in the datasheet. Check for physical damage to the SMT-3 leads before soldering. Validate compliance with RoHS directives if required by the end application.

Selection Notes

Select this component when a compact NPN solution with integrated biasing is required for space-constrained designs. The SMT-3 package offers low profile and small footprint advantages. Consider the 200 mW power dissipation limit and 100 mA current rating against load requirements. The fixed resistor ratio of 0.2 suits specific voltage divider needs; verify compatibility with target logic levels.

Part Context

This part belongs to the DTC114YK series of pre-biased bipolar transistors from ROHM. These devices combine an NPN transistor with internal resistors to reduce board space and assembly complexity. The series is designed for general-purpose digital switching and logic interfacing tasks in consumer electronics and industrial control systems.

Replacement Considerations

Cross-reference with other ROHM DTC114 series variants such as DTC114EE3TL or DTC114YE3TL if package or resistor ratios differ. Verify pinout compatibility and electrical ratings before substitution. Ensure the alternative part meets the same thermal and current requirements.