DTA144ESA-BP

Overview

The DTA144ESA-BP is a PNP digital transistor manufactured by Micro Commercial Components (MCC) in the TO-92S package. It integrates built-in thin-film bias resistors to facilitate inverter circuit configurations without external input components. Key electrical specifications include a maximum supply voltage of -50 V, a continuous collector current of -100 mA, and a power dissipation rating of 300 mW at 25°C. The device features a typical transition frequency of 250 MHz and a minimum DC current gain of 68. The base resistor R1 has a nominal value of 47 kΩ with a resistance ratio of R2/R1 at 1.0.

Feature Summary

• Built-in bias resistors enable inverter circuit configuration without external input resistors
• Thin-film resistors provide complete isolation for negative input biasing
• Eliminates parasitic effects associated with discrete resistor networks
• Simplifies device design by requiring only on/off condition settings

Applications

• Inverter circuits utilizing integrated biasing
• Switching applications requiring simplified input stages
• Digital logic interface circuits

Procurement Notes

Verify the specific ordering suffix against official MCC documentation to confirm packaging type and environmental compliance. The BP suffix indicates bulk packing containing 100,000 pieces per carton. Ensure procurement channels are authorized distributors to guarantee part authenticity and traceability. Confirm halogen-free status if required, as this necessitates an additional HF suffix.

Selection Notes

Select the DTA144ESA-BP for designs requiring a PNP digital transistor with integrated biasing in a through-hole TO-92S form factor. Consider the 300 mW power dissipation limit and -50 V supply voltage rating when defining operating conditions. Verify that the 47 kΩ internal base resistance aligns with the target drive current requirements. Compare performance metrics against alternative SMD packages if board space constraints exist.

Part Context

This component belongs to the DTA144 series of PNP digital transistors produced by Micro Commercial Components. The series utilizes thin-film resistor technology to integrate biasing functions directly into the semiconductor package. The TO-92S package distinguishes this variant from surface-mount equivalents like SOT-23 or SOT-523, offering a through-hole solution for specific mounting requirements.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing requires consulting official manufacturer substitution guides or equivalent parameter matching from other vendors.