DTA023EMT2L

Overview

The DTA023EMT2L is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors within a compact SOT-723 (VMT3) surface-mount package. It operates with a maximum collector-emitter voltage of -50 V and a continuous collector current of -100 mA. The device includes an input resistor (R1) of 2.2 kΩ and an emitter-base resistor (R2) of 47 kΩ. Key electrical characteristics include a DC current gain (hFE) of at least 20 at -10 mA and -5 V, a transition 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 pre-bias resistors to simplify circuit design and reduce component count
• Utilizes a small SOT-723 surface-mount package for space-constrained applications
• Provides high-speed switching capabilities with a 250 MHz transition frequency

Applications

• General-purpose digital switching circuits
• Interface drivers between logic gates and loads
• Level shifting in low-voltage digital systems

Procurement Notes

Verify the specific suffix EM against the manufacturer's latest datasheet to confirm resistor values and pinout configuration. Ensure the ordering code matches the required tape-and-reel quantity of 8000 units if bulk procurement is intended. Cross-reference the RoHS compliance status with current environmental regulations before finalizing supply chain agreements.

Selection Notes

Select this component when a PNP digital transistor with a 2.2 kΩ base resistor is required. Compare the -50 V breakdown voltage and -100 mA current capacity against load requirements. Consider the SOT-723 footprint constraints during PCB layout planning. Evaluate thermal management needs given the 150 mW power dissipation limit in enclosed spaces.

Part Context

This part belongs to the DTA series of digital transistors from ROHM Semiconductor, which are designed to replace discrete resistor-transistor combinations. The DTA023 variant specifically denotes the PNP polarity and the internal resistor ratio. It is commonly used as a drop-in replacement for similar NPN/PNP digital transistors in consumer electronics and industrial control boards.

Replacement Considerations

Check for direct substitutes such as DTA023EEBTL or DTC023EMT2L (NPN counterpart) based on circuit polarity requirements. Verify that alternative packages like EMT3F or VMT3 maintain compatible pinouts and thermal performance.