DTA124TMT2L

Overview

The DTA124TMT2L is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors for simplified 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 kOhms and an emitter-base resistor (R2) of 4.7 kOhms. It is housed in a SOT-723 surface-mount package with three terminals. Key electrical characteristics include a minimum DC current gain (hFE) of 100 at -1 mA and -5 V, a maximum operating frequency of 250 MHz, and a power dissipation rating of 150 mW. The component supports a maximum operating temperature of +150°C.

Feature Summary

• Integrates internal bias resistors to eliminate external components and simplify inverter circuit configuration.
• Provides high-speed switching capabilities suitable for interface and driver applications.
• Utilizes a compact SOT-723 surface-mount package for efficient board space utilization.

Applications

• Inverter circuits
• Interface drivers
• General-purpose switching applications

Procurement Notes

Verify the specific suffix 'TMT2L' against official ROHM documentation to confirm tape-and-reel packaging quantities and lead times. Ensure compatibility with standard SMD reflow processes. Cross-reference datasheet revisions to confirm pinout consistency with existing designs. Confirm RoHS compliance status through authorized distributors or manufacturer certificates prior to procurement.

Selection Notes

Select this component when a PNP digital transistor with low-value bias resistors (4.7 kOhms) is required for fast switching. Compare hFE requirements against load conditions. Verify that the SOT-723 package dimensions fit the PCB footprint constraints. Consider thermal management needs relative to the 150 mW power dissipation limit in the final assembly environment.

Part Context

This part belongs to the DTA124 series of bias resistor built-in transistors from ROHM. It shares functional similarities with other variants like DTA124TUAT106 but differs in packaging and specific resistor values. The TMT2L designation typically indicates a specific taping quantity and reel configuration for automated assembly.

Replacement Considerations

Direct substitutes may include DTA124TUAT106 or DTC124TMT2L (NPN complement). Verify resistor ratios and hFE ranges match original design specifications. Check package compatibility if replacing with SOT-323 or other form factors.