The BC857ALT1G is a high-quality PNP bipolar junction transistor (BJT) from ON Semiconductor, a leading manufacturer in the semiconductor industry. This small signal transistor is designed for general-purpose amplification and switching applications and is known for its reliability and performance in a wide range of electronic circuits.

Key Features

• Transistor Polarity: PNP - This means that the majority charge carriers are holes, making it suitable for positive signal amplification.
• Collector-Emitter Voltage (VCEO): 45 V - The maximum voltage that can be applied from the collector to the emitter while keeping the base terminal open.
• Collector Current (IC): Up to 100 mA - The maximum continuous current that can flow through the collector of the transistor.
• Power Dissipation (Pd): 250 mW - The amount of power that the transistor can dissipate without exceeding its maximum operating temperature.
• DC Current Gain (hFE): 100 - 600 - A measure of the transistor's ability to amplify the base current.
• Operating and Storage Junction Temperature Range: -55°C to +150°C - Ensures stable operation across a wide range of environmental conditions.
• Package / Case: SOT-23-3 - A compact surface-mount package that saves space on printed circuit boards (PCBs).

Applications

The BC857ALT1G is suitable for a variety of applications, including but not limited to:

• Signal amplification in audio and video equipment.
• Driver stages in hi-fi amplifiers and television circuits.
• Switching operations in consumer electronics.
• Control systems in automotive applications.
• Power management in portable devices.

Quality and Environmental Compliance

ON Semiconductor is committed to providing environmentally friendly products that meet the highest standards of quality. The BC857ALT1G is compliant with RoHS (Restriction of Hazardous Substances) and is lead-free, ensuring it meets global environmental regulations and is suitable for use in eco-conscious products.

Whether you are designing a new piece of equipment or looking for a reliable replacement transistor, the BC857ALT1G from ON Semiconductor offers the performance and durability needed for your electronic projects.