DTB114EKFRAT146

Overview

The DTB114EKFRAT146 is a digital transistor manufactured by ROHM Semiconductor, featuring an integrated NPN bipolar junction transistor with built-in bias resistors. It operates within a collector-emitter voltage range of up to 50V and supports a continuous collector current of 500mA. The device is housed in a compact SOT-346 surface-mount package, suitable for automated assembly processes. Designed for high-frequency applications, it offers a maximum operating frequency of 200MHz and maintains a low saturation voltage. The component complies with AEC-Q101 automotive standards, ensuring reliability under specified temperature conditions ranging from -55°C to +150°C.

Feature Summary

• Integrated bias resistors eliminate the need for external input components, simplifying circuit design for inverter configurations.
• Automotive-grade qualification ensures operational stability and reliability in demanding vehicle electronic environments.
• Compact SMD packaging facilitates space-efficient layout on printed circuit boards while supporting high-volume manufacturing.

Applications

• Automotive digital logic circuits requiring robust performance under varying thermal conditions.
• General-purpose switching applications where simplified biasing reduces component count.
• Inverter circuits utilizing the pre-biased structure for direct signal processing.

Procurement Notes

Verify the specific suffix 'F' against official documentation to confirm tape-and-reel specifications and quantity per reel. Confirm RoHS compliance status through the manufacturer's latest datasheet. Ensure the component meets AEC-Q101 requirements if deployed in automotive systems. Check for obsolescence notices as some variants may carry non-recommended-for-new-designations.

Selection Notes

Select this component when an NPN digital transistor with 500mA current capacity and 50V voltage rating is required. Consider the SOT-346 package dimensions for board space constraints. Verify that the built-in resistor values align with the target logic interface levels. Ensure the thermal management strategy accommodates the specified power dissipation limits during operation.

Part Context

This part belongs to the DTB series of digital transistors from ROHM Semiconductor, which are characterized by their internal biasing networks. The series is widely utilized in consumer electronics and automotive modules. The specific model integrates standard NPN characteristics with fixed resistance ratios to streamline design workflows.

Replacement Considerations

Consult official substitution guides for equivalent parts with matching pinouts and electrical parameters. Verify compatibility regarding package dimensions and thermal characteristics before implementation.