DTA024EMT2L

Overview

The DTA024EMT2L is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors for simplified circuit design. It is housed in an SOT-416FL (EMT3F) surface-mount package with three terminals. The device supports a supply voltage of -50 V and handles a collector current of -0.1 A. Key electrical parameters include an input resistance (R1) of 1 kΩ and an emitter-base resistance (R2) of 1 kΩ. The power dissipation rating is 0.15 W, with a minimum DC current gain (hFE) of 56. It operates within a storage temperature range of -55°C to +150°C.

Feature Summary

• Integrates bias resistors directly into the transistor structure to reduce component count and board space.
• Utilizes a compact SOT-416FL surface-mount package suitable for high-density mounting applications.
• Provides standardized resistor ratios (R1=R2=1kΩ) for consistent digital switching performance.

Applications

• General-purpose digital logic interface circuits
• Signal buffering and level shifting in consumer electronics
• Driver stages for low-power relay or LED control

Procurement Notes

Verify the specific ordering suffix and packaging configuration when sourcing, as tape-and-reel quantities may vary by distributor. Confirm RoHS compliance status through official documentation prior to integration. Ensure the selected variant matches the required SOT-416FL footprint for PCB layout compatibility. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a PNP digital transistor with equal bias resistors (1 kΩ each) is required. The SOT-416FL package is ideal for space-constrained designs compared to larger packages. Consider the -50 V voltage rating and -0.1 A current limit to ensure operation within safe boundaries. Verify that the 0.15 W power dissipation capability meets the thermal requirements of the target application environment.

Part Context

This part belongs to ROHM's standard digital transistor series, which integrates pre-bias resistors to simplify digital circuit design. The DTA024EMT2L specifically uses the EMT3F package code, corresponding to the SOT-416FL physical outline. It is categorized under general-purpose transistors rather than automotive-grade variants, distinguishing it from higher-reliability series like the HZG line.

Replacement Considerations

Check for direct pin-compatible alternatives in the SOT-416FL package with similar R1/R2 values. Verify that any substitute maintains the same PNP polarity and -50 V maximum voltage rating. Ensure the replacement offers comparable hFE characteristics and power dissipation limits for equivalent thermal performance.