(Pack of 5) BC557 PNP Transistor 45V 100mA TO-92 Package

(Pack of 5) BC557 PNP Transistor 45V 100mA TO-92 Package

The BC557 is a low-noise PNP general-purpose transistor designed for small-signal amplification and switching applications.
It has a collector-emitter voltage of 45V and a collector current of 100mA, offering reliable performance, stable gain, and low-noise operation.
Encased in a compact TO-92 plastic package, the BC557 is ideal for audio circuits, low-power amplification, and general-purpose electronics.
This listing is for a pack of 5, perfect for multiple projects or circuit builds.

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Features

• PNP Bipolar Junction Transistor (BJT) – suitable for low-power amplification and switching
• Voltage Rating: 45V (Collector-Emitter)
• Current Rating: 100mA continuous collector current
• Low Noise: Ideal for audio and sensitive signal applications
• High Gain (hFE): Efficient small-signal amplification
• TO-92 Package: Compact and easy PCB mounting
• Reliable & Stable: Performs consistently under normal operating conditions
• Pack of 5: Convenient for multiple uses
• RoHS Compliant: Lead-free and environmentally safe

Applications

• Audio preamplifiers and tone control circuits – low-noise amplification
• Small-signal amplification – analog and instrumentation circuits
• Switching circuits – low-current load control
• Oscillator and timer circuits – stable waveform generation
• Sensor interfaces – accurate low-power signal processing
• Hobby, educational, and DIY electronics – versatile and convenient
• Replacement for vintage or legacy circuits – compatible and reliable

bc557-transistor-datasheet