BC547 NPN Transistor Original price was: ৳ 8.00.Current price is: ৳ 4.00.
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2N2222 NPN Transistor Original price was: ৳ 8.00.Current price is: ৳ 4.00.

BC557 PNP Transistor

Specifications:

  • Type: PNP
  • Maximum Collector-Emitter Voltage (V_CE): -45V
  • Maximum Collector Current (I_C): -100mA
  • Gain (h_FE): between 110 and 450
  • Power Dissipation (P_D): Up to 625mW

Special Features:

  • Low Noise: Ideal for audio applications due to its low noise characteristics.
  • High Gain: Provides effective amplification in low-power applications.
  • Compact Design: Housed in a TO-92 package for easy integration into circuits.

Original price was: ৳ 6.00.Current price is: ৳ 4.00.

Specification

Overview

Wiring Connections:

  1. Emitter (E): Connect to the positive voltage supply.
  2. Base (B): Connect to the input signal or control voltage.
  3. Collector (C): Connect to the load or output circuit.

Power:

  • Operating Voltage: Can handle up to -45V across the collector-emitter junction.
  • Current Rating: Rated for up to -100mA of collector current.

Input and Output:

  • Input: Accepts a small base current to control a larger collector current.
  • Output: Provides a higher current to the load, proportional to the input signal.

Physical Characteristics:

  • Package Type: Commonly found in a TO-92 plastic package.
  • Size: Small, allowing for easy placement on breadboards and PCBs.

Technical Specifications:

  • Temperature Range: Operating from -55°C to +150°C.
  • Transition Frequency (f_T): Approximately 250 MHz, suitable for high-frequency applications.

Additional Features:

  • Versatile Applications: Used in amplifiers, switches, and various signal processing circuits.
  • Easy to Use: Simple connection requirements make it beginner-friendly.

How to Use:

  1. Circuit Design:
    • Determine the application (amplification or switching).
    • Calculate the base resistor to control the base current.
  2. Wiring:
    • Connect the emitter to the positive voltage supply.
    • Connect the base through a resistor to the input signal.
    • Connect the collector to the load.
  3. Testing:
    • Apply a base current and observe the output across the load.
    • Ensure the collector current is within specified limits.
  4. Applications:
    • Amplifiers: Utilized in small-signal amplification circuits.
    • Switches: Control larger loads with a small input signal.
    • Signal Processing: Implemented in various analog circuits.
  5. Maintenance:
    • Regularly check connections for reliability.
    • Avoid exceeding voltage and current ratings to prevent damage.

The BC557 PNP Transistor is a reliable and versatile component for numerous electronic projects. Its low power consumption, high gain, and ease of use make it suitable for both beginners and experienced users. Understanding its specifications and proper usage allows you to effectively incorporate the BC557 into various circuits for amplification and switching applications.

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