CFUKF455KB4X-R0

The CFUKF455KB4X-R0 is a high-performance crystal filter manufactured by Murata Electronics, designed for use in various RF and communication applications. This component is particularly notable for its ability to provide excellent selectivity and low insertion loss, making it ideal for use in intermediate frequency (IF) stages of receivers and transmitters.

Key Features:

1. Frequency Characteristics:

   • The CFUKF455KB4X-R0 operates at a center frequency of 455 kHz, which is a common frequency used in AM radio and other communication systems.

2. Filter Type:

   • It is a crystal filter, which means it utilizes the piezoelectric properties of quartz crystals to achieve precise frequency selectivity. This results in a narrow bandwidth, allowing it to effectively filter out unwanted signals.

3. Insertion Loss:

   • The filter exhibits low insertion loss, typically around 3 dB or less, ensuring that the desired signal is transmitted with minimal attenuation.

4. Bandwidth:

   • The bandwidth of the CFUKF455KB4X-R0 is designed to be narrow, which enhances its ability to discriminate between closely spaced frequencies, making it suitable for applications requiring high fidelity.

5. Temperature Stability:

   • The component is designed to maintain its performance across a range of temperatures, ensuring reliable operation in various environmental conditions.

6. Package and Mounting:

   • The filter is housed in a compact package, which facilitates easy integration into circuit designs. It is typically surface-mountable, allowing for efficient use of PCB space.

7. Applications:

   • This crystal filter is commonly used in AM radio receivers, FM demodulators, and other RF applications where precise frequency filtering is required. It is also suitable for use in communication devices, including walkie-talkies and other handheld radios.

8. Impedance:

   • The filter is designed to operate with a specific impedance, typically 10 kΩ, which is standard for many RF applications, ensuring compatibility with various circuit designs.

Conclusion:

The CFUKF455KB4X-R0 from Murata Electronics is a highly reliable and efficient crystal filter that provides excellent performance for RF applications. Its low insertion loss, narrow bandwidth, and temperature stability make it an ideal choice for engineers looking to enhance the performance of their communication systems. Whether used in consumer electronics or professional communication equipment, this filter is a valuable component for achieving high-quality signal processing.