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BC558 Transistor (Pack of 5)
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The BC558 is a PNP transistor and a heavy-duty drop-in replacement for a 2N2222 or 2N3906. The three terminals of a bipolar transistor are called the emitter, base, and collector. A small current into the base controls a large current flow from the collector to the emitter. The current at the base is typically one-hundredth of the collector-emitter current. Moreover, the large current flow is almost independent of the voltage across the transistor from collector to emitter. This makes it possible to obtain a large amplification of voltage by taking the output voltage from a resistor in series with the collector.
read our blog explaining the BC547 Transistor: Basic Knowledge, Pin Configuration & Features.
| Transistor Polarity | PNP |
| Collector-Base Voltage (VCBO) | 30V |
| Collector-Emitter Voltage (VCEO) | 30V |
| Continuous Collector Current (IC) | 100mA |
| Transition Frequency (fT) | 150MHz |
| Power Dissipation (PD) | 500mW |
| Dimensions | 5 x 4 x 3cms |
| Weight | 5 grams |