DTC143XCAHZGT116

Overview

The DTC143XCAHZGT116 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-23-3 surface-mount package. It integrates biasing resistors to simplify circuit design, featuring a typical input resistance of 4.7 kOhms and a typical resistor ratio of 2.1. Key electrical parameters include a maximum collector-emitter voltage (VCEO) of 50 V, a continuous collector current of 100 mA, and a power dissipation rating of 350 mW. The device supports a maximum operating frequency of 250 MHz with a minimum DC current gain (hFE) of 30 at 10 mA and 5 V. It is qualified under AEC-Q101 standards for automotive applications and operates within a temperature range up to +150°C.

Feature Summary

• Integrates built-in biasing resistors to eliminate the need for external input components, enabling straightforward inverter circuit configuration.
• Qualified for automotive environments through AEC-Q101 certification, ensuring high reliability for vehicle-mounted systems.
• Optimized for high-speed switching with a maximum operating frequency of 250 MHz and low saturation voltage characteristics.

Applications

• Automotive interface circuits requiring robust component qualification.
• Driver applications for loads compatible with NPN switching logic.
• Inverter circuits where simplified biasing reduces board space and design complexity.

Procurement Notes

Verify the specific suffix GT116 against official ROHM documentation to confirm reel packaging specifications and tape dimensions. Ensure the procurement channel provides traceability to the manufacturer for AEC-Q101 compliance validation. Cross-reference the full part number with authorized distributors to distinguish between cut tape and reel variants, as packaging affects handling procedures during assembly.

Selection Notes

Select this component when a single NPN digital transistor with integrated biasing is required for automotive-grade applications. The 4.7 kOhm input resistance suits standard logic interfaces, while the 50 V rating accommodates moderate voltage levels. Consider the SOT-23-3 package constraints for thermal management, given the 350 mW dissipation limit, and verify that the 100 mA current capacity meets the load requirements of the target circuit design.

Part Context

This part belongs to the DTC143X series of pre-biased transistors from ROHM Semiconductor. The 'CAH' designation typically indicates specific internal resistor values and package type variations within the family. The DTC143XCAHZGT116 represents the NPN variant, complemented by PNP types such as the DTA143XCAHZG. This series is engineered to replace discrete resistor-transistor combinations, offering space savings and improved consistency in mass-produced electronic assemblies.

Replacement Considerations

Direct substitutes include other ROHM DTC143X series parts with identical pinouts and electrical ratings, such as DTC143XCAHZG. Verify that any alternative maintains the AEC-Q101 qualification if automotive use is intended. Ensure the replacement matches the SOT-23-3 footprint and confirms the 4.7 kOhm input resistance to prevent biasing mismatches in existing designs.