DTA123EET1

Overview

The DTA123EET1 is a PNP Bias Resistor Transistor (BRT) from onsemi, integrating a single transistor with a monolithic bias network consisting of two resistors: a series base resistor and a base-emitter resistor. Housed in the SC-75/SOT-416 package, it replaces discrete components to reduce board space and system cost. Key electrical parameters include a collector-emitter voltage (VCEO) of 50 Vdc, a collector current (IC) of 100 mAdc, and a total device dissipation (PD) of 200 mW at 25°C on an FR-4 board with minimum pads. The internal resistors are typically R1 = 2.2 kΩ and R2 = 2.2 kΩ.

Feature Summary

• Integrates a PNP transistor with a monolithic bias network containing series base and base-emitter resistors to simplify circuit design.
• Reduces component count and board space by replacing individual transistors and external resistor networks.
• SC-75/SOT-416 package designed for low power surface mount applications, compatible with wave or reflow soldering.

Applications

• General purpose switching and amplification
• Inverter and interface circuits
• Circuit driver applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and shipping configuration. Ensure compliance with RoHS directives if lead-free packaging is required for the target assembly process. Confirm automotive qualification status if AEC-Q101 compliance is necessary for the application environment.

Selection Notes

Select this component when a compact solution for PNP switching is needed without external biasing resistors. Verify that the 2.2 kΩ internal resistor values align with the logic drive requirements. Consider the thermal resistance characteristics and maximum junction temperature limits during high-duty cycle operations.

Part Context

This device belongs to the DTA114EET1 Series, which includes various PNP BRT configurations with different internal resistor ratios. It is part of onsemi's Preferred Devices portfolio, indicating recommended choices for future use and best overall value within the Bias Resistor Transistor product line.

Replacement Considerations

Direct substitutes within the same series include DTA123EET1G for lead-free versions. Other series members like DTA114EET1 or DTA143EET1 offer different resistor values and should be evaluated based on specific bias requirements rather than direct pin-to-pin replacement without circuit analysis.

FAQ

What are the typical values for the internal resistors in the DTA123EET1?

The DTA123EET1 features a series base resistor (R1) and a base-emitter resistor (R2), both typically valued at 2.2 kΩ.

Is the DTA123EET1 qualified for automotive applications?

Yes, the DTA114EET1 Series, which includes the DTA123EET1, is AEC-Q101 qualified and PPAP capable. Devices intended for automotive use may carry an 'S' prefix.

What package style does the DTA123EET1 utilize?

The device is housed in the SC-75/SOT-416 package (CASE 463), which is designed for low power surface mount applications and can be soldered using wave or reflow processes.