DTA144TETL

Overview

DTA144TETL is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors in an EMT3 (SOT-416) surface-mount package. It operates with a collector-emitter voltage of -50 V and a continuous collector current of -100 mA. The device dissipates up to 150 mW and supports junction temperatures up to +150°C. DC current gain (hFE) ranges from 100 to 600 at specified test conditions. Input resistance options include 1 kΩ and 47 kΩ.

Feature Summary

• Integrates bias resistors to simplify circuit design and reduce component count
• Compact SMD package suitable for space-constrained applications
• RoHS compliant and lead-free construction

Applications

• General-purpose switching circuits
• Driver circuits for logic interfaces
• Signal level translation

Procurement Notes

Verify the specific suffix configuration against the latest official datasheet to ensure correct resistor values and packaging type. Confirm RoHS compliance status and availability through authorized distributors. Check for any obsolescence notices as this part may be designated for existing customers only.

Selection Notes

Select based on required input resistance value (1 kΩ or 47 kΩ) and hFE range. Ensure the SOT-416 package fits the PCB layout constraints. Verify that the -50 V rating and -100 mA current capacity meet the application's electrical requirements.

Part Context

The DTA144 series belongs to ROHM's standard digital transistor lineup. These components combine a single PNP bipolar junction transistor with internal biasing resistors. The EMT3 package provides a small footprint compared to discrete resistor-transistor combinations.

Replacement Considerations

Check for direct substitutes within the DTA144 family with different resistor ratios. Verify pinout compatibility when considering cross-manufacturer alternatives. Ensure thermal and electrical ratings match or exceed the original specifications.