
Transistor/MOSFET
BC558 PNP Transistor
The BC558 is a general-purpose PNP bipolar junction transistor in a TO-92 package, designed for low-power switching and amplification applications. It supports up to 30V and 100mA, making it ideal for hobbyist electronics and prototyping.
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Category
Transistor/MOSFET
Quality
100% Genuine
About BC558 PNP Transistor
The BC558 is a PNP epitaxial silicon transistor manufactured in a standard TO-92 package. It is widely used in general-purpose amplification and switching circuits due to its reliability and cost-effectiveness. This transistor features a maximum collector-emitter voltage of -30V, a continuous collector current of 100mA, and a power dissipation of 300mW to 500mW depending on the manufacturer. It is commonly found in audio pre-amplifiers, signal processing, and low-current switching applications. The BC558 is a complementary pair to the NPN BC548 transistor. Choose this component for your projects requiring a dependable, widely available PNP transistor that meets standard electronic design requirements.
Technical Specifications
| Transistor Type | PNP |
|---|---|
| Maximum Collector-Emitter Voltage (Vceo) | -30V |
| Maximum Collector-Base Voltage (Vcbo) | -30V |
| Maximum Emitter-Base Voltage (Vebo) | -5V |
| Continuous Collector Current (Ic) | -100mA |
| Maximum Power Dissipation (Pd) | 300mW - 500mW |
| Transition Frequency (ft) | 150MHz |
| Package / Case | TO-92 |
| Number of Pins | 3 |
| Operating Temperature Range | -55°C to +150°C (Typical) |
Alternative Components
BC557
BC556
BC548
2N3906









