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The BC557 is a general-purpose transistor that may be utilised in electrical circuits as an amplifier or a switch. This transistor's hFE ratings vary from 125 to 800, making it perfect for use as an amplifier in electrical circuits such as audio signal amplification. The PNP transistor is a type of transistor in which one n-type material is doped with two p-type materials. It is a device that is controlled by the current. Both the emitter and collector currents were controlled by the small amount of base current.
Features
| Part Number | BC557 |
| Transistor Polarity | PNP |
| Collector-Base Voltage | -50V |
| Collector Emitter Voltage | -45V |
| Continuous Collector Current | -100mA |
| Maximum DC Current Gain | 800 |
| Power Dissipation | 500mW |
| Package Type | To-92 |
