DTA123TET1G

Overview

The DTA123TET1G is a Bias Resistor Transistor (BRT) manufactured by onsemi, featuring a single PNP silicon transistor integrated with a monolithic bias resistor network. This configuration includes a series base resistor and a base-emitter resistor within one device. The component is housed in the SC-75/SOT-416 surface-mount package, designed for low-power applications. It operates with a maximum collector-emitter voltage of 50 V and a continuous collector current of 100 mA. The typical input resistance is 2.2 kOhms, with a power dissipation rating of 150 mW. The device supports an operating temperature range from -55°C to +150°C.

Feature Summary

• Integrates a single PNP transistor with a monolithic bias resistor network to replace discrete components.
• Reduces board space and simplifies circuit design by eliminating external bias resistors.
• SC-75/SOT-416 package features modified gull-wing leads to absorb thermal stress during soldering.

Applications

• Low-power surface mount applications requiring simplified biasing networks.
• Circuits where board space reduction and component count minimization are critical.
• General-purpose switching and amplification tasks compatible with PNP logic levels.

Procurement Notes

Verify the specific suffix TET1G against the manufacturer's latest datasheet to confirm pinout and electrical characteristics. Ensure the SC-75/SOT-416 package outline matches the target PCB footprint. Confirm RoHS compliance status if required by the end product specifications. Cross-reference the part number with official onsemi distribution channels to avoid counterfeit components.

Selection Notes

Select this component when a PNP digital transistor with a 2.2 kOhm base resistor is required. The SOT-416 package is suitable for applications needing compact surface-mount solutions. Verify that the 50 V collector-emitter voltage and 100 mA current ratings meet the circuit requirements. Consider the 150 mW power dissipation limit for thermal management in dense layouts.

Part Context

The DTA123TET1G belongs to the DTC123 series of Bias Resistor Transistors from onsemi. This series is designed to simplify circuit design by integrating bias resistors directly with the transistor die. The DTA prefix indicates a PNP configuration, distinguishing it from NPN variants like the DTC series. These devices are commonly used in consumer electronics and industrial control systems.

Replacement Considerations

Compatible substitutes include other PNP BRTs with similar 2.2 kOhm base resistance and SOT-416 packaging, such as parts from Rohm or Nexperia. Verify electrical parameters like VCEO and hFE before substitution. Ensure the replacement device meets the same AEC-Q101 qualification standards if automotive reliability is required.