BC557, PNP General-Purpose Transistor, TO-92

The BC557 is a widely used PNP BJT designed for general-purpose amplification and switching applications. With its low voltage and moderate current capabilities, it is commonly employed in audio pre-amplifiers, signal processing circuits, and other low-power electronic applications. The transistor's variants (A, B, C) offer different ranges of current gain, allowing designers to select the appropriate type based on circuit requirements.

Key Features:

• Low Voltage Operation: Suitable for applications with voltages up to 45V.
• Moderate Current Handling: Supports continuous collector current up to 100 mA.
• High DC Current Gain: Offers a gain (h_FE) range from 110 to 800, depending on the variant.
• Low Noise Performance: Ideal for audio and signal amplification applications.
• Compact TO-92 Package: Facilitates easy through-hole mounting on PCBs.
• Wide Operating Temperature Range: Functions reliably from -55°C to +150°C.

Additional Specifications:

• Mounting Style: Through Hole
• Maximum DC Collector Current (Ic): 45V
• Collector-Emitter Voltage (VCEO) Max: 50V
• Collector-Base Voltage (VCBO): 5V
• Emitter-Base Voltage (VEBO): 100Ma
• Power Dissipation: 500Mw
• Operating Temprature: -55+150°C