A42 Transistor

The A42 is an NPN bipolar junction transistor (BJT) used for general-purpose amplification and switching applications. It is known for its high current gain and reliability in various electronic circuits. The transistor is often used in low to medium power applications, offering a compact solution in a TO-92 package.

Key Features:

• Type: NPN Bipolar Junction Transistor (BJT)
• High Gain: Provides a high current gain (hFE) for effective signal amplification
• Compact Package: Available in a TO-92 package, suitable for small and medium-sized circuits

Technical Specifications:

• Collector-Emitter Voltage (Vce): 50V
• Collector-Base Voltage (Vcb): 50V
• Emitter-Base Voltage (Veb): 5V
• Collector Current (Ic): 800mA
• Power Dissipation (Ptot): 500mW
• DC Current Gain (hFE): 50 to 300
• Transition Frequency (ft): 100MHz
• Package Type: TO-92

Applications:

• Signal Amplification: Used in various low-power amplification circuits
• Switching: Suitable for general-purpose switching tasks
• Audio Circuits: Effective for audio signal processing and low-power amplification
• General Purpose: Versatile for use in different electronic applications and projects

Usage:

1. Circuit Design: Integrate the A42 transistor into your circuit design based on the required application.
2. Biasing: Ensure proper biasing of the transistor to achieve optimal performance in amplification or switching roles.
3. Connection: Connect the collector, base, and emitter terminals according to your circuit requirements.
4. Testing: Test the transistor within your circuit to verify correct operation.

Caution:

• Voltage and Current Limits: Do not exceed the maximum voltage and current ratings to prevent damage.
• Heat Management: Ensure proper heat dissipation to avoid overheating during operation.
• Static Electricity: Handle with care to avoid damage from electrostatic discharge (ESD).

Datasheet:
For detailed technical specifications, refer to the A42 Transistor Datasheet.