DTA144EMFHAT2L

Overview

DTA144EMFHAT2L is a PNP digital transistor with built-in resistors, certified to AEC-Q101 automotive standards. It features an integrated bias network with R1 and R2 both at 47 kΩ, providing a resistor ratio of 1. The device supports a maximum collector current of 100 mA and a collector-emitter voltage of -50 V. Key electrical parameters include a minimum DC current gain (hFE) of 68 at 5 mA and 5 V, and a transition frequency of 250 MHz. Power dissipation is rated at 150 mW, with a saturation voltage of 300 mV at 500 µA base and 10 mA collector current. It is housed in a compact VMT3 (SOT-723) surface-mount package.

Feature Summary

• Automotive-grade reliability compliant with AEC-Q101 qualification standards for harsh environment operation.
• Integrated dual-resistor bias network simplifies circuit design by eliminating external components.
• High-speed switching capability supported by a 250 MHz transition frequency.

Applications

• Switching applications in automotive electronic control units (ECUs).
• Driver circuits for relays and solenoids in vehicle systems.
• Logic level shifting and buffer stages in automotive communication interfaces.

Procurement Notes

Verify the specific suffix 'T2L' against the manufacturer's official datasheet to confirm tape-and-reel packaging specifications and marking codes. Ensure that the AEC-Q101 certification status aligns with the intended automotive application requirements. Cross-reference the VMT3 package dimensions with PCB footprint libraries to guarantee mechanical compatibility during assembly.

Selection Notes

Select this component when a PNP digital transistor with a 47 kΩ input resistance is required for automotive environments. The 47 kΩ resistor value offers a balance between drive current and power consumption. Consider the 150 mW power dissipation limit and thermal management needs within the SOT-723 package. Verify that the -50 V collector-emitter voltage rating exceeds the maximum operating voltage of the target circuit.

Part Context

The DTA144EMFHAT2L belongs to ROHM's standard digital transistor series designed for replacing discrete resistor-transistor combinations. It is part of the DTA144 family, which includes variants with different resistor values and packages. This specific model is optimized for space-constrained automotive designs requiring reliable switching performance under strict quality standards.

Replacement Considerations

Direct substitutes may include other DTA144 series variants from ROHM with identical pinouts and electrical characteristics but different resistor values or packages. Non-ROHM equivalents must be verified for matching hFE, VCEO, and package dimensions. Ensure any replacement also meets AEC-Q101 if automotive qualification is mandatory.