Description
BC557 PNP General Purpose Transistor
The BC557 is a popular PNP bipolar junction transistor (BJT) designed for low current, low voltage, and medium-speed switching and amplification. It is widely used in electronics projects, analog circuits, and switching applications. With a maximum current of 100mA and voltage rating of 45V, it is suitable for small signal amplification and simple switching tasks.
Features:
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PNP general-purpose transistor
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Ideal for low current switching and signal amplification
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Low noise and good gain characteristics
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TO-92 package for easy handling and PCB mounting
Specifications:
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Transistor Type: PNP
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Package: TO-92
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Collector–Emitter Voltage (Vceo): -45V
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Collector–Base Voltage (Vcbo): -50V
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Emitter–Base Voltage (Vebo): -5V
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Collector Current (Ic): -100mA (max)
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Power Dissipation (Ptot): 500mW
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DC Current Gain (hFE): 110 to 800 (depending on variant A/B/C)
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Transition Frequency (ft): 150MHz
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Operating Temperature: -65°C to +150°C
Applications:
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Signal amplification in audio and sensor circuits
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Low current switching
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Driver stages for other components
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General-purpose electronics projects
Specification
General
| WeightWeight | 0,0002 g |
|---|---|
| Dimensions | 0,5 × 0,5 × 0,4 cm |
| Product Name | BC557 PNP Transistor |
| Transistor Type | PNP Bipolar Junction Transistor |
| Maximum Collector-Emitter Voltage (Vce) | -45 V |
| Maximum Collector Current (Ic) | -100 mA |
| Maximum Power Dissipation | 500 mW |
| DC Current Gain (hFE) | 110 – 800 |
| Package Type | TO-92 |
| Transition Frequency | 100 MHz |
| Operating Temperature | -55°C to +150°C |
| Pin Configuration | Emitter – Base – Collector |
| Application | Signal Amplification, Switching Circuits, Audio Amplifiers |
