BF494 NPN Medium Frequency Transistor 20V 30mA TO-92 Package (Pack Of 5)

Description

1. NPN Transistor: The BF494 is an NPN-type transistor, which means it conducts current when positive voltage is applied to the collector relative to the emitter.
2. Low Voltage (Vceo): The maximum collector-to-emitter voltage (Vceo) rating is 20V. This is the maximum voltage the transistor can withstand when it is in the “off” state.
3. Low Current (Ic): The maximum collector current (Ic) rating is 30mA. This is the maximum continuous current that the transistor can handle.
4. Medium Frequency: The BF494 is specifically designed for medium-frequency applications, making it suitable for use in radio frequency (RF) circuits, particularly in the VHF (Very High Frequency) range.
5. TO-92 Package: The BF494 comes in a TO-92 plastic-encapsulated package, which has three leads (collector, base, and emitter) for easy mounting on a printed circuit board.
6. General-Purpose Applications: BF494 transistors are commonly used in RF amplifiers, oscillators, and radio receivers. Due to their medium-frequency capability, they are often found in AM (Amplitude Modulation) radio circuits.
7. Temperature Range: The BF494 is typically rated for operation within a certain temperature range, commonly from -55°C to +150°C, ensuring its functionality across various temperature conditions.