DTC143XEFRATL

Overview

The DTC143XEFRATL is a single NPN pre-biased digital transistor manufactured by ROHM Semiconductor. It integrates bias resistors within an EMT3 (SOT-416) surface-mount package. Key electrical parameters include a collector-emitter saturation voltage of 300 mV at 10 mA, a DC current gain (hFE) minimum of 30 at 10 mA and 5 V, and a transition frequency of 250 MHz. The device supports a maximum collector current of 100 mA and power dissipation of 150 mW. It holds AEC-Q101 automotive qualification and complies with RoHS standards.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design and reduce component count.
• Automotive-grade reliability certified under the AEC-Q101 standard for harsh environments.
• Optimized for high-speed switching applications with a 250 MHz transition frequency.

Applications

• Automotive electronic control units requiring qualified discrete components.
• General-purpose logic level shifting and interface circuits.
• High-frequency switching applications in consumer electronics.

Procurement Notes

Verify the specific suffix 'FRA' confirms the EMT3 package and AEC-Q101 automotive grade status against the official datasheet. Confirm that the ordering part number matches the required tape-and-reel quantity of 3000 units. Ensure compatibility with the SC-75/SOT-416 footprint during PCB layout review.

Selection Notes

Select this component when an NPN digital transistor with integrated biasing is required for automotive or high-reliability applications. Compare the 300 mV saturation voltage and 100 mA current rating against load requirements. Consider the SOT-416 package dimensions if space constraints are critical compared to larger packages like SOT-23.

Part Context

This part belongs to the ROHM DTC143 series of Bias Resistor Built-in Transistors. The 'FRA' suffix typically denotes the EMT3 package variant and automotive qualification. It serves as a compact alternative to discrete resistor-transistor combinations, offering consistent performance characteristics defined by the manufacturer's specifications.

Replacement Considerations

The DTC143EUAFRA is listed as a similar level replacement with the same pinout but utilizes a UMT3 (SOT-323) package. Verify package compatibility before substitution. Other DTC143 variants may differ in resistance ratios or hFE ranges.