STMicroelectronics

ULQ2803A

ULQ2803A Description

The ULQ2803A, manufactured by STMicroelectronics, is an 8 NPN Darlington Bipolar Transistor Array. It boasts a maximum collector current (Ic) of 500mA and a collector-emitter breakdown voltage of 50V. This through-hole mounted device is designed for high-reliability applications, with a maximum power dissipation of 2.25W. The ULQ2803A is compliant with the RoHS3 standard and is unaffected by REACH regulations, making it an environmentally friendly choice.

ULQ2803A Features

• High Current Handling: With a maximum collector current of 500mA, the ULQ2803A can handle significant current loads, making it suitable for power amplification applications.
• Low Saturation Voltage: The ULQ2803A has a low Vce saturation voltage of 1.6V at 500µA and 350mA, which contributes to high efficiency in low-voltage applications.
• High DC Current Gain: A minimum hFE of 1000 at 350mA and 2V ensures robust performance and reliability in various electronic circuits.
• Environmental Compliance: The ULQ2803A is RoHS3 compliant and REACH unaffected, aligning with global environmental standards.
• Moisture Sensitivity Level 1: This indicates that the device can be stored and handled without special precautions, simplifying logistics and storage.

ULQ2803A Applications

The ULQ2803A is ideal for applications that require high current and voltage handling capabilities in a compact form factor. Some specific use cases include:

• Power Amplifiers: Due to its high current and power ratings, the ULQ2803A is well-suited for audio and radio frequency power amplification.
• Motor Control: Its Darlington configuration makes it an excellent choice for driving high-current loads such as motors in industrial and automotive applications.
• Signal Amplification: The ULQ2803A's high current gain is beneficial in applications requiring signal amplification in communication systems and sensors.

Conclusion of ULQ2803A

The ULQ2803A from STMicroelectronics stands out for its high current and power ratings, low saturation voltage, and environmental compliance. Its 8 NPN Darlington configuration offers robust performance in a variety of applications, from power amplification to motor control. With its moisture sensitivity level of 1, the ULQ2803A is also easy to handle and store, making it a reliable choice for demanding electronics projects.