DTB143ECHZGT116

Overview

The DTB143ECHZGT116 is a PNP digital transistor from ROHM Semiconductor, housed in an SOT-23-3 surface-mount package. It integrates bias resistors with a typical input resistance of 4.7 kOhms and a resistor ratio of 1. The device supports a collector continuous current of -500 mA and a maximum operating frequency of 200 MHz. Key electrical ratings include a collector-emitter voltage (VCEO) of -50 V, an emitter-base voltage (VEBO) of -3 V, and power dissipation of 200 mW. It meets AEC-Q101 automotive qualification standards and operates up to +150°C.

Feature Summary

• Integrates bias resistors to simplify circuit design by eliminating external components
• Automotive-grade reliability compliant with AEC-Q101 standards
• Optimized for high-speed switching applications with defined transition frequency

Applications

• Inverter circuits
• Interface drivers
• General-purpose switching applications

Procurement Notes

Verify the complete part number including the T116 suffix to ensure correct tape-and-reel packaging configuration. Confirm that the specific revision matches the required automotive grade documentation. Cross-reference the datasheet version to validate thermal characteristics and absolute maximum ratings before integration into final designs.

Selection Notes

Select this component for PNP switching requirements where integrated biasing reduces board space. Ensure the -500 mA collector current capability aligns with load demands. Verify that the 4.7 kOhm input resistance provides appropriate drive levels for the controlling logic interface without excessive base current draw.

Part Context

This part belongs to the DTB series of pre-biased transistors designed for automotive and industrial use. It shares the SST3 package form factor with other ROHM digital transistors but differs in polarity and internal resistor values compared to NPN variants like the DTC series.

Replacement Considerations

Direct substitutes must match PNP polarity, SOT-23-3 packaging, and similar electrical ratings. Check equivalent parts from other manufacturers for compatible VCEO, IC, and R1 values to ensure functional interchangeability in existing layouts.