BF458 Transistor NPN 250V 0.1A 90MHZ

The BF458 is an NPN transistor that is typically employed in applications requiring high-frequency and low-power amplification. The key technical specifications of the BF458 transistor are as follows:

Key Specifications

• Type: NPN
• Voltage Rating (Collector-Emitter Voltage - Vce): 250V, enabling the BF458 to be utilized in applications that demand higher voltage.
• Current Rating (Collector Current - Ic): 0.1A (100mA), which signifies the maximum current that the transistor can withstand.
• Frequency Performance: The transistor can function up to 90 MHz, making it an excellent choice for high-frequency signal amplification and rapid switching applications.
• Power Gain (hFE): The transistor offers moderate power gain, making it an ideal choice for low-power amplifiers.
• Package Type: The BF458 is typically housed in a TO-92 package, which is perfect for applications that require small and compact components.

Common Applications

The BF458 transistor is frequently used in the following domains:

• High-frequency amplifiers (such as radio frequency, TV receivers, etc.)
• Signal amplification (for audio, video, or RF signals)
• Switching applications (for low-power switching tasks)
• Radio and communication devices (like radio transmitters and receivers)

This transistor is particularly beneficial in applications that span a wide frequency range, providing efficient signal processing for electronic devices.