DTD543XMT2L

Overview

The DTD543XMT2L is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in a VMT-3 (SOT-723) surface-mount package. It integrates bias resistors with a typical input resistance of 4.7 kOhms and a resistor ratio of 2.1. Key electrical parameters include a maximum collector-emitter voltage of 12 V, continuous collector current of 500 mA, and power dissipation of 150 mW. The device features a minimum DC current gain of 140, a saturation voltage of 60 mV, and a maximum operating frequency of 260 MHz. It operates within a temperature range up to +150°C.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design by eliminating external components.
• Provides high-speed switching capability suitable for interface applications.
• Features low saturation voltage for efficient power consumption.

Applications

• Inverter circuits
• Interface drivers
• General-purpose switching

Procurement Notes

Verify the NRND status before procurement, as this component is not recommended for new designs. Confirm availability through authorized distributors, as stock levels may be limited or discontinued. Ensure the VMT-3 package matches your PCB footprint requirements. Check RoHS compliance documentation if required for specific regulatory standards.

Selection Notes

Select this component for applications requiring an NPN digital transistor with a 12 V rating and 500 mA current capacity. The 4.7 kOhm input resistor value is suitable for standard logic interfaces. Consider the VMT-3 package size constraints during layout. Compare against other DTD543 series variants if different resistor ratios or voltages are needed.

Part Context

This part belongs to the DTD543XM series of digital transistors from ROHM Semiconductor. These devices are designed to replace discrete transistor-resistor combinations, reducing board space and assembly complexity. The series offers various configurations with different internal resistor values and voltage ratings to suit diverse electronic design needs.

Replacement Considerations

Check for direct substitutes within the DTD543 series that may have updated statuses or different packaging options. Verify pinout compatibility when considering alternative manufacturers' equivalents. Ensure replacement parts meet the same 12 V and 500 mA specifications.