The KN3904 is a common NPN bipolar junction transistor (BJT) widely used in general-purpose amplification and switching applications. Manufactured by KEC, it is known for its reliability and versatility in various electronic circuits.

Applications

• General-purpose amplification
• Switching circuits
• Driver stages
• Oscillators
• Small signal amplifiers
• Digital logic circuits

Features

• NPN Bipolar Junction Transistor (BJT): A standard NPN transistor configuration.
• High Collector Current (IC): Capable of handling moderate collector currents.
• Low Saturation Voltage (VCE(sat)): Ensures efficient switching performance.
• High Transition Frequency (fT): Suitable for high-frequency applications.
• Small Signal Amplification: Effective for amplifying small signals.

Benefits

• Versatile application: Suitable for a wide range of amplification and switching tasks.
• Reliable performance: Provides consistent and dependable operation.
• Cost-effective: An economical choice for general-purpose transistor needs.
• Easy to use: Simple to implement in various circuit designs.

Additional Details

The KN3904 typically comes in a TO-92 package. Its key parameters include a collector-emitter voltage (VCEO) of 40V, a collector current (IC) of 200mA, and a power dissipation of 625mW. The DC current gain (hFE) typically ranges from 100 to 300, depending on the operating conditions. For detailed specifications, refer to the KEC datasheet for the KN3904.