DTA143TSATP

Overview

The DTA143TSATP is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors for simplified circuit design. It operates with a collector-emitter voltage of -50V and supports a continuous collector current of -100mA. The device utilizes an SPT (Small Power Transistor) surface-mount package, offering a power dissipation capacity of 300mW. Key electrical characteristics include a minimum DC current gain (hFE) of 80 at specified test conditions and a maximum operating frequency of 250MHz. The component is designed for high reliability in automotive applications, adhering to AEC-Q101 qualification standards.

Feature Summary

• Integrates a PNP transistor with built-in bias resistors to reduce external component count and PCB space.
• Qualified under AEC-Q101 automotive standards for enhanced reliability in harsh environments.
• Features a compact SPT surface-mount package suitable for automated assembly processes.

Applications

• Automotive electronic control units requiring robust switching capabilities
• General-purpose logic level translation and interface circuits
• High-frequency signal switching applications up to 250MHz

Procurement Notes

Verify the specific suffix 'S' and 'TP' against the official ROHM datasheet to confirm tape-and-reel packaging and lead-free compliance. Ensure the procurement source provides valid traceability documentation for AEC-Q101 qualified parts. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit components. Confirm that the received inventory matches the exact RoHS status and marking codes specified in the latest product release notes.

Selection Notes

Select this component when a pre-biased PNP solution is required for driving loads or interfacing with logic gates in space-constrained designs. The integrated resistor network simplifies base drive calculations compared to discrete transistor configurations. Consider the 300mW power dissipation rating for thermal management in dense PCB layouts. Verify that the -50V voltage rating aligns with the system's supply rails and transient voltage requirements.

Part Context

This part belongs to the DTA143 series of digital transistors from ROHM Semiconductor, which are widely used in consumer electronics and automotive systems. The series offers various package options including SOT-23 and SPT formats. The DTA143TSATP specifically targets applications needing higher power handling than standard small-signal variants while maintaining a compact footprint. It complements other members of the family like the DTA143EETL and DTA143ZU3T106.

Replacement Considerations

Direct substitutes may include the DTA143EETL or DTA143ZU3T106 if package compatibility allows. Check pinout alignment and electrical parameter margins before substitution. Alternative packages such as SOT-23-3 require mechanical re-evaluation. Verify that any replacement maintains AEC-Q101 qualification if used in automotive contexts.