DTA114EET1

Overview

The DTA114EET1 is a PNP Bias Resistor Transistor (BRT) from onsemi, housed in an SC-75/SOT-416 package. It integrates a single transistor with a monolithic bias network consisting of two resistors: a series base resistor (R1) and a base-emitter resistor (R2). Key electrical parameters include a collector-emitter voltage (VCEO) of 50 Vdc, a continuous collector current (IC) of 100 mAdc, and a total device dissipation (PD) of 200 mW at 25°C. The typical input resistance R1 is 10 kOhms, with a typical resistor ratio (R1/R2) of 1.0. The DC current gain (hFE) has a minimum value of 35.

Feature Summary

• Integrates a single transistor with a monolithic bias network to replace discrete devices and external resistor bias networks.
• Simplifies circuit design by eliminating the need for external input resistors.
• Reduces board space and component count within electronic systems.
• Features modified gull-winged leads designed to absorb thermal stress during wave or reflow soldering.

Applications

• Inverter circuits
• Interface applications
• Driver circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm package type and shipping configuration. Ensure compliance with RoHS directives and Pb-Free requirements if applicable to the target assembly process. Confirm that the SC-75 package dimensions align with the intended PCB footprint and soldering profile constraints.

Selection Notes

Select this component when a compact solution is required for switching or amplification tasks involving low-power signals. The integrated bias network simplifies layout compared to discrete transistor configurations. Verify that the 50 V collector-emitter voltage rating and 100 mA current capacity meet the specific load requirements of the application circuit.

Part Context

This component belongs to the DTA114EET1 Series, which includes various BRT configurations with different resistor ratios. It is part of onsemi's portfolio of digital transistors designed for surface mount applications. The series offers options for automotive qualification through specific prefixes and suffixes, catering to diverse industrial and consumer electronics needs.

Replacement Considerations

Compatible substitutes within the same series include DTA114EET1G, which denotes a Pb-Free package variant. Other models in the series offer different resistor values but share the same package and general functionality.

FAQ

What is the internal resistor configuration for the DTA114EET1?

The DTA114EET1 features equal internal resistors, with both the series base resistor (R1) and the base-emitter resistor (R2) having a typical value of 10 kOhms.

Is the DTA114EET1 suitable for automotive applications?

Yes, the datasheet indicates that the series is AEC-Q101 qualified and PPAP capable. Specific automotive-grade versions may require an 'S' prefix to meet unique site and control change requirements.

How does the SC-75 package handle soldering stress?

The SC-75/SOT-416 package utilizes modified gull-winged leads specifically designed to absorb thermal stress during wave or reflow soldering processes, thereby protecting the die from damage.