No products in the cart.
Components, PNP, Transistors
BC557 Transistor PNP General Purpose
BC557 PNP transistor for switching and low-power amplification. Ideal for audio, signal, Arduino, and electronics projects.
$0.25
BC557 Transistor PNP General Purpose
The BC557 is a widely used PNP bipolar junction transistor (BJT) designed for general-purpose switching and low-power amplification. It is ideal for students, hobbyists, and technicians learning how transistors control current flow in electronic circuits. Commonly used in signal processing, audio stages, sensor circuits, and low-voltage switching applications, the BC557 provides reliable performance in a compact through-hole package. Its versatility makes it an essential component for breadboard experiments, classroom demonstrations, and repair work.
Key Features
• PNP bipolar junction transistor (BJT)
• Suitable for switching and amplification
• Ideal for low-power and signal circuits
• Common TO-92 through-hole package
• Reliable and widely used general-purpose transistor
• Great for prototyping and education use
Technical Specifications
• Transistor Type: PNP BJT
• Model: BC557
• Package: TO-92
• Collector-Emitter Voltage (Vceo): 45V max
• Collector Current (Ic): 100mA max
• Power Dissipation: 500mW typical
• DC Current Gain (hFE): 110–800 (group dependent)
• Transition Frequency (fT): Approx. 100MHz
• Mounting Type: Through-hole
• Applications: Switching, amplification, signal circuits
• Operating Temperature: -55°C to +150°C typical
