DTC114GKAT146

Overview

The DTC114GKAT146 is a single PNP pre-biased digital transistor manufactured by ROHM Semiconductor. It integrates internal biasing resistors within an SMT3 (SOT-23-3) surface-mount package. Key electrical specifications include a collector-emitter breakdown voltage of 50 V and a continuous collector current of 100 mA. The device features a typical base input resistance of 10 kOhms, with only the base resistor (R1) included in the configuration. It operates with a maximum power dissipation of 200 mW and supports a transition frequency up to 250 MHz. The minimum DC current gain (hFE) is specified as 30 at 5 mA and 5 V.

Feature Summary

• Integrates a single PNP bipolar junction transistor with a built-in base bias resistor to simplify circuit design.
• Provides high-speed switching capabilities suitable for applications requiring fast response times.
• Offers low saturation voltage characteristics to minimize power loss during conduction.

Applications

• General-purpose logic level shifting and interface circuits between microcontrollers and peripheral devices.
• Driver stages for small-signal relays, solenoids, or LED indicators where compact footprint is required.
• Switching elements in portable battery-operated equipment due to low power consumption profile.

Procurement Notes

Verify component authenticity through authorized distribution channels to ensure compliance with ROHM Semiconductor quality standards. Confirm that the specific suffix matches the required packaging format for your assembly line. Check for RoHS compliance documentation if environmental regulations apply to your manufacturing process. Ensure storage conditions adhere to moisture sensitivity levels defined in the datasheet prior to reflow soldering.

Selection Notes

Select this component when a PNP configuration is required for high-side switching or logic inversion tasks. The integrated 10 kOhm base resistor eliminates external components, reducing board space and assembly costs. Consider the 50 V rating and 100 mA current capacity against load requirements. Verify thermal management needs given the 200 mW power dissipation limit in the SMT3 package.

Part Context

This part belongs to the DTA114 series of pre-biased transistors from ROHM Semiconductor. The series combines NPN and PNP variants with various resistor values and packages to standardize digital transistor solutions. The DTC114GKAT146 specifically addresses applications needing PNP polarity with a single integrated base resistor, distinguishing it from dual-resistor or NPN counterparts in the same family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing requires matching PNP polarity, 50 V VCEO, 100 mA Ic, 10 kOhm R1, and SOT-23-3 package constraints. Consult manufacturer databases for equivalent pre-biased transistor alternatives.