DTC914TUBTL

Overview

The DTC914TUBTL is a single NPN pre-biased transistor manufactured by Rohm Semiconductor. It integrates a base resistor (R1) of 10 kOhms within the UMT3F surface-mount package, which corresponds to the SC-85 form factor. The device supports a maximum collector current of 400 mA and a collector-emitter voltage of 20 V. Key electrical characteristics include a DC current gain (hFE) of at least 820 at 10 mA and 5 V, with a saturation voltage of 100 mV at 3 mA base and 30 mA collector currents. The component features a transition frequency of 35 MHz and a maximum power dissipation of 200 mW.

Feature Summary

• Integrates a 10 kOhm base resistor to simplify circuit design and reduce board space.
• Provides high DC current gain for efficient switching applications.
• Utilizes a compact UMT3F surface-mount package for automated assembly.

Applications

• General-purpose switching circuits
• Driver stages for relays and solenoids
• Logic level translation interfaces

Procurement Notes

Verify the specific ordering suffix to confirm the tape and reel configuration, as distributors may list both cut tape and reel variants under the same base part number. Confirm that the UMT3F package dimensions align with the target PCB footprint. Ensure the 20 V voltage rating meets the operational requirements of the intended application environment.

Selection Notes

Select this component when a single NPN switch with integrated biasing is required in a small footprint. The 10 kOhm internal resistor value determines the input impedance; verify compatibility with the driving logic levels. Compare the 400 mA current capacity against load requirements. Consider the 35 MHz transition frequency if high-speed switching is necessary, noting it is lower than some high-frequency digital transistors.

Part Context

This part belongs to the DTC914 series of pre-biased transistors from Rohm Semiconductor. The 'U' in the model number typically denotes the UMT3F package type. It is distinct from dual-transistor configurations or those with different internal resistor values found in other series like DTC1xx or DTC0xx.

Replacement Considerations

Direct substitutes must match the NPN polarity, 20 V Vceo, 400 mA Ic, and 10 kOhm R1 value in the UMT3F package. Verify pinout compatibility before substitution.