DTC144EMT2L

Overview

The DTC144EMT2L is a single NPN digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors in an 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 two internal resistors, R1 and R2, both typically valued at 47 kOhms with a ratio of 1. Key electrical parameters include a minimum DC current gain (hFE) of 68 at 5 mA and 5 V, a maximum operating frequency of 250 MHz, and a power dissipation rating of 150 mW. The emitter-base voltage is specified at 3 V, with a saturation voltage of 100 mV.

Feature Summary

• Integrates dual bias resistors to simplify circuit design by eliminating external components
• Supports high-speed switching applications with a transition frequency up to 250 MHz
• Provides stable operation within a wide storage temperature range from -55°C to +150°C

Applications

• Inverter circuits requiring simplified input biasing
• Interface logic level shifting between microcontrollers and peripherals
• Driver stages for low-power loads in consumer electronics

Procurement Notes

Verify the specific suffix T2L corresponds to the tape-and-reel packaging format containing 8000 units per reel. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the ordering part number matches the exact pinout and marking requirements for the target PCB layout to avoid assembly errors during surface mount placement.

Selection Notes

Select this component when a compact NPN solution with integrated base and emitter-base resistors is required. The 47 kOhm resistor values are suitable for standard logic interface applications. Consider the 150 mW power dissipation limit and thermal management needs for dense PCB layouts. Verify that the 50 V collector-emitter voltage meets the system's supply rail requirements.

Part Context

This part belongs to the DTC144E series of digital transistors from ROHM Semiconductor. It serves as the NPN counterpart to the PNP DTA144E series. The device is designed for general-purpose switching and amplification where space savings and reduced component count are priorities. It utilizes the VMT3 package code defined by JEITA standards.

Replacement Considerations

The complementary PNP equivalent is the DTA144EMT2L. For automotive-grade variants, consider the DTC144EMHZGTL which shares similar electrical characteristics but meets AEC-Q101 standards.