Murata CFJ455K-5 & K15 , BW 2,4KHz SSB Filter

The Murata CFJ455K-5 & K15 is a high-performance ceramic IF filter designed for precision signal selection in single sideband (SSB) communication systems. Operating at a center frequency of 455 kHz, this filter provides a 2.4 kHz bandwidth, making it ideal for narrowband voice communications where clarity and selectivity are critical.

Built using Murata’s multi-element piezoelectric ladder design, the CFJ455 series delivers excellent stopband attenuation and stable frequency characteristics, ensuring reliable performance in demanding RF environments. These filters are widely used in amateur radio, HF transceivers, receivers, and other communication equipment.

• Center Frequency: 455 kHz
• Bandwidth: 2.4 kHz (optimized for SSB)
• Filter Type: Ceramic bandpass filter
• Design: Multi-element (approx. 11-element ladder structure)
• Insertion Loss: ~6 dB typical
• Impedance: ~2 kΩ input/output
• High Selectivity: Strong adjacent-channel rejection
• Compact Through-Hole Package