DTA143XCAT116

Overview

The DTA143XCAT116 is a single PNP pre-biased digital transistor manufactured by ROHM Semiconductor. It integrates biasing resistors to simplify circuit design, eliminating the need for external input components. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current (Ic) of 100 mA. The device features a typical base resistor (R1) of 4.7 kOhms and an emitter-base resistor (R2) of 10 kOhms, resulting in a typical resistance ratio of 2.1. It offers a minimum DC current gain (hFE) of 30 at 10 mA and 5 V, with a transition frequency of 250 MHz. Power dissipation is rated at 200 mW, and it operates within a temperature range up to +150°C.

Feature Summary

• Integrates built-in biasing resistors to enable direct connection to logic circuits without external input resistors.
• Provides high-speed switching capabilities suitable for interface and driver applications.
• Offers compact surface-mount packaging for efficient board space utilization.

Applications

• Inverter circuits
• Interface circuits between logic gates and loads
• Driver circuits for small signals

Procurement Notes

Verify the specific suffix CAT116 against the official ROHM datasheet to confirm package type and tape/reel specifications. Ensure compatibility with RoHS3 standards if required by the target application. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm that the SST3 package variant matches the PCB footprint requirements.

Selection Notes

Select this component when a PNP digital transistor with integrated biasing is required for low-power switching applications. The 50V rating and 100mA current capacity suit general-purpose logic interfacing. Consider the 4.7kΩ/10kΩ resistor ratio for appropriate drive strength. Verify thermal management needs given the 200mW power dissipation limit in the SOT-23-3 package.

Part Context

This part belongs to the DTx series of digital transistors from ROHM Semiconductor. These devices combine NPN or PNP transistors with internal bias resistors to reduce component count and assembly time. The DTA143XCA variant specifically denotes the PNP configuration with standard resistor values. This series is widely used in consumer electronics and industrial control systems for signal inversion and level shifting.

Replacement Considerations

• DTA143XCAHZG
• DTA143TCA

FAQ

What are the internal resistor values for the DTA143XCAT116?

The device includes a base resistor (R1) of 4.7 kOhms and an emitter-base resistor (R2) of 10 kOhms.

Is the DTA143XCAT116 suitable for automotive applications?

Standard versions like DTA143XCAT116 are not recommended for automotive equipment. Automotive-grade alternatives such as the DTA143XCAHZG series should be selected for AEC-Q101 compliance.

What is the maximum operating temperature for this component?

The maximum operating junction temperature is +150°C.