DTA143ECA-TP

Overview

The DTA143ECA-TP is a PNP digital transistor manufactured by Micro Commercial Components (MCC). It integrates a single PNP bipolar junction transistor with built-in thin-film bias resistors in an SOT-23 surface-mount package. The device supports a maximum supply voltage of -50 V and a continuous collector current of -100 mA, with a power dissipation rating of 200 mW at 25°C. Key electrical characteristics include a typical transition frequency of 250 MHz, an input resistance (R1) of 4.7 kΩ, and a resistance ratio (R2/R1) of 1.0. The component operates within a junction temperature range up to 150°C and is compliant with RoHS standards.

Feature Summary

• Built-in bias resistors enable inverter circuit configuration without external input components
• Thin-film resistors provide complete isolation for negative biasing capabilities
• Halogen-free construction with UL 94 V-0 flammability rating epoxy

Applications

• Inverter circuits
• Switching applications requiring simplified design
• General-purpose digital logic interfacing

Procurement Notes

Verify the authenticity of the DTA143ECA-TP by purchasing directly from Micro Commercial Components or their authorized distributors. MCC maintains strict traceability and quality standards for parts sourced through official channels. Purchasing from unauthorized sources voids warranty coverage and risks receiving counterfeit components that do not meet specified electrical parameters.

Selection Notes

Select the DTA143ECA-TP when a PNP digital transistor with integrated biasing is required for space-constrained designs. The SOT-23 package suits surface-mount assembly processes. Ensure the application voltage does not exceed the -50 V limit and current requirements remain within the -100 mA specification. Consider the 250 MHz transition frequency for high-speed switching needs.

Part Context

The DTA143ECA-TP belongs to the DTA143 series of pre-biased transistors from Micro Commercial Components. This series consolidates discrete transistor and resistor functions into a single compact package. The 'TP' suffix indicates tape-and-reel packaging containing 3000 units per reel, facilitating automated manufacturing integration.

Replacement Considerations

Cross-reference with other PNP digital transistors in the SOT-23 package having similar R1 values around 4.7 kΩ and matching voltage/current ratings. Verify pinout compatibility and electrical characteristics before substitution.

FAQ

What is the function of the built-in resistors?

The built-in resistors allow the device to function as an inverter circuit without requiring external input resistors, simplifying the design.

Can the DTA143ECA-TP handle negative input voltages?

Yes, the thin-film resistors provide complete isolation, allowing for the negative biasing of the input.

What is the maximum operating temperature?

The maximum junction temperature is 150°C, while the storage temperature range extends from -55°C to 150°C.