CFU455C2

Attenuation (dB) FILTERS CERAMIC FILTERS FOR AM APPLICATIONS–HIGHLY SELECTIVE CFU SERIES The CFU 455 line of ceramic filters are 4-element devices connected in ladder form while the CFWS 455 line of ceramic filters contain 6-elements. These compact, highly selective filters are recommended for use in applications ranging from two-way radio to auxiliary filters in high class transceivers. (Also available in 450kHz version.) FEATURES s High selectivity s The pass bandwidths from 30kHz to 4kHz are available. s Easily mountable onto printed boards s Operating temperature range: –20°C to +80°C Storage temperature range: –40°C to +85°C DIMENSIONS: mm 8.0 ± 0.5 7.0 ± 0.5 8.0 ± 0.5 0.8 ± 0.1 0.2 0.8 ± 0.3 Sealing 4.0 ± 0.5 0.6 ± 0.1 2.7 ± 0.3 0.8 2 1 4.3 ± 0.3 3 3-1.0D. 3.3 ± 0.5 1.2 ± 0.5 1.5 max. 2.7 21 3 CIRCUIT R1 S.S.G. Rg 13 2 R2 Rg+R1=R2=Input/Output Impedance 1=INPUT 2=GROUND 3=OUTPUT CHARACTERISTICS RF Voltmeter 0 CFU 10 455B2 20 CFU 30 455E2 CFU 455H2 40 50 60 70 420 440 460 480 500 Frequency (kHz) SPECIFICATIONS Part Number Nominal Center Frequency (kHz) 6dB Bandwidth 40dB Bandwidth (kHz) min. (kHz) max. Attenuation 455 ±100kHz (dB) min. Ripple Insertion Loss (dB) max. kHz (dB) max. ‚CFU455B2 455 ± 2 ±15 ±30 27 3 (455 ± 10) 4 ‚CFU455C2 455 ± 2 ±12.5 ±24 27 4 (455 ± 8) 4 ‚CFU455D2 455 ± 1.5 ±10 ±20 27 2 (455 ± 7) 4 ‚CFU455E2 455 ± 1.5 ±7.5 ±15 27 1.5 (455 ± 5) 6 ‚CFU455F2 455 ± 1.5 ±6 ±12.5 27 1.5 (455 ± 4) 6 ‚C...