BC557 PNP Transistor

The BC557 is a PNP bipolar junction transistor (BJT) designed for low-power switching and general-purpose amplification applications. With a collector-emitter voltage of -45V and a maximum collector current of -100mA, it is ideal for signal processing, low-noise amplification, switching circuits, and voltage regulation.

Specification :

• Transistor Type: PNP Bipolar Junction Transistor (BJT)
• Voltage Ratings:
  • Collector-Emitter Voltage (Vce): -45V
  • Collector-Base Voltage (Vcb): -50V
  • Emitter-Base Voltage (Veb): -5V
• Current Ratings:
  • Continuous Collector Current (Ic): -100mA
  • Peak Collector Current (Icm): -200mA
• Power Dissipation (Pd): 500mW
• Current Gain (hFE): 110 to 800 (at Ic = -2mA)
• Collector-Emitter Saturation Voltage (Vce(sat)): ≤ -0.2V at Ic = -10mA
• Transition Frequency (ft): 150MHz (Typical)
• Operating Temperature Range: -55°C to +150°C