DTA144VCA-TP

Overview

The DTA144VCA-TP is a pre-biased digital transistor manufactured by Micro Commercial Components (MCC). It integrates an NPN bipolar junction transistor with internal bias resistors into a single SOT-523 surface-mount package. This configuration simplifies circuit design by reducing component count and board space requirements. The device is designed for high-speed switching applications, offering reliable performance in low-voltage digital logic interfaces. Key electrical characteristics include a collector-emitter breakdown voltage of 50 V and a continuous collector current of 100 mA. The integrated resistor network typically consists of specific base and emitter resistance values to ensure stable operation.

Feature Summary

• Integrates NPN transistor with dual bias resistors for simplified driving circuits
• Compact SOT-523 surface-mount package for space-constrained designs
• Designed for high-speed switching and digital logic interface applications

Applications

• Digital logic level shifting and buffering
• Switching loads in microcontroller output stages
• Driver circuits for small-signal relays or LEDs

Procurement Notes

Verify the exact suffix 'VCA' against the manufacturer's datasheet to confirm the specific resistor ratio and pinout configuration. Ensure the ordering part number matches the required package type and tape-and-reel specifications. Cross-reference the MCC datasheet for any recent product change notices regarding packaging or material compliance updates before finalizing procurement orders.

Selection Notes

Select this component when a compact NPN pre-biased transistor is required for high-speed switching. Verify that the internal resistor values match the drive source impedance and desired saturation levels. Compare the SOT-523 footprint constraints against available PCB real estate. Ensure the 50 V breakdown voltage and 100 mA current rating exceed the maximum operational stresses of the target application circuit.

Part Context

The DTA144VCA-TP belongs to the DTA144 series of pre-biased transistors from Micro Commercial Components. This series offers various resistor combinations and package options to suit different design needs. The DTA144VCA variant specifically denotes the NPN configuration with defined internal resistance values housed in the SOT-523 package, distinguishing it from PNP counterparts or other package styles within the same family.

Replacement Considerations

Potential substitutes include the DTC144ECA-TP for similar NPN pre-biased functionality if package compatibility allows. Other manufacturers offer equivalent SOT-523 NPN digital transistors; verify pinout alignment and electrical parameters such as Vceo and hFE before substitution.