This is the PDF file of catalog No.P05E-9. No.P05E9.pdf 00.7.20 *CERAFIL(R) is the Registered Trademark of Murata Manufacturing Co., Ltd. CERAFIL (R) Ceramic Filter for Communications Equipment CFWS455 Series Resin Molded, High Selectivity Low Profile Type Ceramic Filter (6-Element) Ceramic filter CFWS455- series are low profile high selectivity ceramic filters which use 6 elements in ladder form. They have the same electric characteristics as CFW455- series, best suitable to high-class transceivers, cordless telephones and amateur radios. !FEATURES 1. Low profile, high selectivity. 2. Available bandwidths B to I as standard. 3. Easily mountable on an any PC boards. 4.Operating temperature range : Y20D to W80D Storage temperature range : Y40D to W85D !SPECIFICATIONS Character- Nominal Center 6dB Bandwidth istics Frequency (kHz)min. (kHz) Part Number Ripple (dB)max. 50dB Bandwidth (kHz)max. Attenuation 455T100kHz (dB)min. Insertion Loss (dB)max. Input/Output Impedance () CFWS455B 455 T15 3 T30 35 4 1500 CFWS455C 455 T12.5 3 T24 35 4 1500 CFWS455D 455 T10 3 T20 35 4 1500 CFWS455E 455 T07.5 3 T15 35 6 1500 CFWS455F 455 T06 3 T12.5 35 6 2000 CFWS455G 455 T04.5 2 T10 35 6 2000 CFWS455HT 455 T03 2 T09 60 6 2000 CFWS455IT 455 T02 2 T07.5 60 6 2000 !DIMENSIONS !TEST CIRCUIT 0.8T0.1 R1 CFWS455 t q w er 10 20 0.6T0.1 Rg 2.0 S.S.G. R2 R.F. Voltmeter 5-1.0 Hole 1.2T0.5 2.6 2.9 2.9 Connection q Input wer Ground t Output 2.6 2.9 2.9 (Back Side of PCB) RgWR1=R2=Input/Output Impedance Attenuation (dB) t q w e r CFWS455E 0 4.3 2.0 2.3T0.5 4.3 5-0.15T0.05 7.0T0.5 3.5T0.5 7.5T0.5 11.0T0.5 !FREQUENCY CHARACTERISTICS 30 40 50 60 70 Tol. without notice : T0.3 (in mm) Connection q Input wer Ground t Output 80 410 420 430 440 450 460 470 480 490 500 Frequency (kHz) Note : To take best advantage of safety feature of ceramic filters, connect the output to an IF amplifier through a DC cut capacitor. Avoid directly applying a direct current to output of ceramic filters (between 5 and 2,3,4). 33