This is the PDF file of catalog No.P05E-9.
No.P05E9.pdf 00.7.20
*CERAFIL®is the Registered Trademark
of Murata Manufacturing Co., Ltd.
®
CERAFIL
Ceramic Filter for Communications Equipment
Series
CFUS455
Resin Molded, High Selectivity Type Ceramic Filter (4-Element)
Ceramic Filter CFUS455 series are high selectivity ceramic
filters which consist of 4 ceramic elements connected in a
ladder form.
They are recommended for use as filters for transceivers or
auxiliary filters for high-class transceivers.
!FEATURES
1. High selectivity.
2. The pass bandwidths from 30kHz to 4kHz are available.
3. Easily mountable onto printed boards.
4. Operating temperature range : Y20D to W80D
Storage temperature range : Y40D to W85D
!SPECIFICATIONS
Character-
Attenuation
455T100kHz
(dB) min.
Input/Output
Impedance
(Ω)
Center Frequency
(kHz)
6dB Bandwidth
(kHz) min.
40dB Bandwidth
(kHz) max.
Insertion Loss
(dB) max.
istics
Part Number
455T2
T15
T30
T24
T20
T15
T12.5
T10
T09
CFUS455B
CFUS455C
CFUS455D
CFUS455E
CFUS455F
CFUS455G
CFUS455HT
27
27
27
27
27
25
35
4
4
4
6
6
6
6
1500
1500
1500
1500
2000
2000
2000
455T2
T12.5
T10
455T1.5
455T1.5
455T1.5
455T1
T07.5
T06
T04.5
T03
455T1
!DIMENSIONS
!TEST CIRCUIT
!FREQUENCY CHARACTERISTICS
8.0T0.3
CFUS455-
0
M
*
* : EIAJ MONTHLY CODE
e
q w
R1
10
CFUS455B
CFUS455E
20
0.8T0.1
0.6T0.1
30
40
50
Rg
R.F.
Voltmeter
E2
R2
E1
S.S.G.
0 dBm
0.15T0.05
2.7T0.3 1.2T0.5
60
410 420 430 440 450 460 470 480 490 500
RgWR1=R2=Input/Output Impedance
w
q
Frequency (kHz)
Connection
q
w
e
Input
e
Connection
Ground
Output
(in mm)
q
w
e
Input
Ground
Output
Sealing
3.3T0.5
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 3 and 2).
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