
Transistor/MOSFET
BC559 PNP Transistor
The BC559 is a low-noise PNP transistor in a TO-92 package, designed for general-purpose switching and amplification applications. It operates up to 30V and 100mA, making it ideal for low-power audio and signal processing circuits.
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Category
Transistor/MOSFET
Quality
100% Genuine
About BC559 PNP Transistor
The BC559 is a PNP epitaxial silicon transistor manufactured in a standard TO-92 package. It is specifically designed for low-noise, general-purpose amplification and switching applications. This transistor is commonly used in audio pre-amplifier stages, signal processing, and low-power switching circuits where minimal noise is critical. Key features include a maximum collector-emitter voltage of 30V, a continuous collector current of 100mA, and a very low collector cutoff current. Its complementary NPN pair is the BC549. The BC559 is a reliable choice for hobbyists and professionals building analog circuits, sensor interfaces, and audio equipment. Choose this component for its proven performance in low-noise environments and its widespread availability as a standard component in the electronics industry.
Technical Specifications
| Transistor Type | PNP |
|---|---|
| Maximum Collector-Emitter Voltage (Vceo) | 30V |
| Maximum Collector Current (Ic) | 100mA |
| Maximum Power Dissipation (Pd) | 500mW - 625mW |
| Package / Case | TO-92 |
| Number of Pins | 3 |
| Collector-Emitter Saturation Voltage | -250mV (typical) |
| Collector Cutoff Current (Max) | 15nA @ 150V |
| Operating Temperature | -55°C to +150°C (typical range) |
Alternative Components
BC556
BC557
BC558
BC560









