DTA143XMT2L

Overview

The DTA143XMT2L is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors to simplify circuit design. It operates with a collector-emitter voltage of -50 V and a continuous collector current of -100 mA. The device includes an input resistor (R1) of 4.7 kΩ and an emitter-base resistor (R2) of 10 kΩ, yielding a typical resistance ratio of approximately 2.1. Packaged in the compact SOT-723 (VMT3) surface-mount format, it supports a maximum power dissipation of 150 mW and functions up to a transition frequency of 250 MHz.

Feature Summary

• Integrates bias resistors to eliminate external components for inverter circuits
• Compact SOT-723 package suitable for space-constrained designs
• High-speed operation with 250 MHz transition frequency

Applications

• Inverter circuits requiring simplified input stages
• General-purpose switching applications in consumer electronics
• Driver circuits for low-current loads

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications, as some variants may be marked not recommended for new designs. Ensure packaging specifications match production requirements.

Selection Notes

Select this component when a PNP digital transistor with a 4.7 kΩ input resistor is required. Compare against complementary NPN types like the DTC143 series for balanced designs. Verify that the -50 V rating and 100 mA current capacity meet specific load requirements before integration.

Part Context

This part belongs to the DTA143 series of PNP digital transistors from ROHM. It shares functional similarities with other models in the family but differs in package type and specific resistor values. The SOT-723 variant offers a smaller footprint compared to larger packages like SOT-89.

Replacement Considerations

Direct substitutes include DTA143ZE3HZGTL (SOT-416) and DTA143ZU3T106 (SOT-323). Verify pin compatibility and electrical parameters such as VCEO and hFE before substitution.