The SMMBTA42LT3G from ON Semiconductor is a high-performance NPN bipolar junction transistor (BJT) designed for use in a wide range of electronic applications. This versatile transistor is capable of handling high voltage operations, making it an ideal choice for power regulation and amplification tasks in consumer, industrial, and telecommunication products.

Key Features

• Voltage Ratings: The SMMBTA42LT3G boasts a collector-emitter voltage (V<sub>CEO) of 300V, enabling it to efficiently manage high voltage circuits without succumbing to breakdown.
• Current Capacity: With a collector current (I<sub>C) rating of 500mA, this transistor can drive moderate loads, making it suitable for a variety of switching and amplification applications.
• Power Dissipation: The device can dissipate up to 225mW of power, ensuring stable performance even under significant power handling requirements.
• High Gain Bandwidth Product: It features a transition frequency (f<sub>T) of 50MHz, providing a high gain bandwidth product for amplification purposes in RF and other high-frequency applications.

Package and Reliability

The SMMBTA42LT3G comes in a small surface-mount package known as SOT-23, which is widely used in the industry for its compact footprint and ease of integration into PCB designs. The package is designed for optimal thermal performance and space-saving, which is critical for modern electronic devices.

Applications

This high voltage NPN transistor is versatile and can be used in various applications, including:

• Switching regulators
• Power management circuits
• Inverters and converters
• Signal amplification in audio and video equipment
• Driver circuits in LED lighting systems
• Telecommunication circuits

Quality and Environmental Compliance

ON Semiconductor is committed to providing environmentally friendly solutions. The SMMBTA42LT3G is compliant with RoHS (Restriction of Hazardous Substances), ensuring that it meets global standards for environmental safety and hazardous material restrictions. This commitment to quality and sustainability makes the SMMBTA42LT3G a reliable and conscientious choice for your electronic component needs.