DTC143ZMT2L

Overview

The DTC143ZMT2L is an NPN digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors within a compact SOT-723 (VMT3) surface-mount package. 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 47 kΩ. Key electrical characteristics include a DC current gain (hFE) of at least 80 at 10 mA and 5 V, a transition frequency of 250 MHz, and a power dissipation rating of 150 mW. It supports a storage temperature range from -55°C to +150°C.

Feature Summary

• Integrates NPN transistor with dual bias resistors to simplify circuit design
• Compact SOT-723 package suitable for space-constrained applications
• High-speed switching capability with 250 MHz transition frequency

Applications

• Inverter circuits
• Interface drivers
• General-purpose digital logic buffering

Procurement Notes

Verify the specific suffix ZMT2L against official ROHM documentation to confirm the exact resistor values and packaging configuration. Ensure compatibility with automated pick-and-place equipment for the VMT3 tape-and-reel format. Cross-reference the datasheet revision date to guarantee alignment with current manufacturing specifications and environmental compliance standards.

Selection Notes

Select this component when a single NPN digital transistor with unequal bias resistors (4.7kΩ/47kΩ) is required in a small footprint. It serves as a direct replacement for standard discrete resistor-transistor networks. Consider the 150 mW power dissipation limit and thermal management requirements for high-density PCB layouts.

Part Context

This part belongs to the DTC143 series of pre-biased transistors. It shares the same core transistor structure as other variants but differs in internal resistor ratios and packaging. The ZMT2L designation specifically indicates the SOT-723 package and the 4.7kΩ/47kΩ resistor combination, distinguishing it from R1-only or equal-resistor models.

Replacement Considerations

Direct substitutes include DTC143ZETL (SOT-416) and DTC143ZE3HZGTL (SOT-416 automotive grade). For identical SOT-723 packaging, verify equivalent resistor values in competitors' offerings such as ON Semiconductor's MMBT3904-based pre-bias series or STMicroelectronics' STD6N60 equivalents if pinout and electrical specs match.