DTD114GKT146

Overview

The DTD114GKT146 is an NPN digital transistor manufactured by ROHM Semiconductor, belonging to the DTx series. It integrates bias resistors within a single SOT-23-3 package to simplify circuit design. Key electrical parameters include a collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 500 mA. The device features a typical input resistance of 10 kOhms and supports a maximum operating frequency of 200 MHz. Power dissipation is rated at 200 mW, with a minimum DC current gain (hFE) of 56 at 50 mA and 5 V. The emitter-base voltage (VEBO) is specified at 5 V, and the component operates up to a maximum temperature of +150°C.

Feature Summary

• Integrates built-in bias resistors to eliminate external input resistor requirements for inverter circuits.
• Provides high-speed switching capability suitable for applications requiring frequencies up to 200 MHz.
• Offers robust thermal performance with a maximum junction temperature rating of +150°C.

Applications

• Inverter circuits utilizing integrated biasing without external components.
• General-purpose switching applications in consumer electronics.
• Low-frequency amplifier stages requiring compact surface-mount solutions.

Procurement Notes

Verify the specific suffix KT146 against official ROHM documentation to confirm tape-and-reel packaging details and exact manufacturing lot codes. Ensure compliance with RoHS directives as indicated in standard product specifications. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before procurement.

Selection Notes

Select this component when a single NPN digital transistor with 500 mA current capacity and 50 V breakdown voltage is required. The integrated 10 kOhm input resistance simplifies board layout compared to discrete resistor configurations. Consider the SOT-23-3 footprint constraints and the 200 MHz frequency limit relative to the target application's signal speed and power dissipation requirements.

Part Context

This component is part of ROHM's DTx series of digital transistors, which are designed to replace multiple discrete components. The DTD114GKT146 specifically denotes an NPN configuration with built-in resistors. It shares functional similarities with other models in the series but differs in current ratings and package types, serving as a compact solution for modern surface-mount assembly processes.

Replacement Considerations

Publicly confirmed substitute part numbers for DTD114GKT146 were not identified in the provided reference data. Verify compatibility with alternative NPN digital transistors having matching VCEO, Ic, and package dimensions through official datasheet comparison.