Ceramic Filter for Communications Equipment CF--455 Series
CERAFIL®
25
High Performance Ceramic Filters
for Various Types of Radio Equipment
No.P05E9.pdf 00.7.20This is the PDF file of catalog No.P05E-9.
CF-series ceramic filters are high-performance filters, which
consist of piezoelectric elements connected in a ladder form.
They can be widely used as intermediate-frequency filters in
various high-class receivers, SSB communications equipment,
mobile radio set.
!FEATURES
1. High selectivity.
2. Stable operation in a wide temperature range.
3. Variety of bandwidths available to suit your needs.
4. Operating temperature range : Y20 to W80D
Storage temperature range : Y40 to W85D
CFS455-CFR455-CFM455-CFK455-
CFL455-CFX455-CFG455-CFJ455K-
CFS455-
CFR455-
CFM455-
CFK455-
CFL455-
CFX455-
CFG455-
CFJ455K-
High selectivity type filter using 15 ceramic elements.
11 ceramic elements used. The characteristic standard of this filter located between CFS455-and CFM455-.
Economic ceramic filter using 9 ceramic elements.
Miniature but having characteristics equivalent to CFS455-. Most suitable for portable radios which are required to be
miniaturized.
Another miniature type. Characteristics are equivalent to CFR455-and the size is the same as CFK455-. Enables
immediate improvement of characteristics.
One of the smallest of our ceramic filters. It is provided with characteristics equivalent to CFL455-. Perfect for portable
radios and particularly, pagers.
The other of our smallest filters. Characteristics equivalent to CFM455-. Perfect for receivers and radio equipment which
require particular miniaturization.
Most suitable type for SSB communications for which narrow bands are particularly needed.
*CERAFIL®is the Registered Trademark
of Murata Manufacturing Co., Ltd.
26
No.P05E9.pdf 00.7.20This is the PDF file of catalog No.P05E-9.
!SPECIFICATIONS
¡CFS455-
Characteristics
Part Number
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min. Ripple
(dB) max. 80dB
Bandwidth
(kHz) max.
Attenuation
455T100kHz
(dB) min.
Spurious
0.1Y1MHz
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
CFS455A
CFS455B
CFS455C
CFS455D
CFS455E
CFS455E10
CFS455F
CFS455G
CFS455H
CFS455I
CFS455J
455
455
455
455
455
455
455
455
455
455
455
T13
T10
T09
T07
T05.5
T05
T04.2
Y
Y
Y
Y
T17.5
T15
T13
T10
T08
T07.5
T06
T04
T03
T02
T01.5
3
3
3
3
3
3
3
3
3
3
3
T30
T25
T23
T20
T15
T12.5
T12
T09
T07.5
T05
T04.5
70
70
70
70
70
70
70
70
70
70
60
50
50
50
50
50
50
50
50
50
50
50
4
4
4
4
6
6
6
6
7
8
8
1500
1500
1500
1500
1500
1500
2000
2000
2000
2000
2000
¡CFR455-
Characteristics
Part Number
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min. Ripple
(dB) max. 70dB
Bandwidth
(kHz) max.
Attenuation
455T100kHz
(dB) min.
Spurious
0.1Y1MHz
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
CFR455A
CFR455B
CFR455C
CFR455D
CFR455E
CFR455F
CFR455G
CFR455H
CFR455I
CFR455J
455
455
455
455
455
455
455
455
455
455
T13
T10
T09
T07
T05.5
T04.2
Y
Y
Y
Y
T17.5
T15
T13
T10
T08
T06
T04
T03
T02
T01.5
3
3
3
3
3
3
3
3
3
3
T30
T25
T23
T20
T16
T12
T10
T7.5
T05
T04.5
60
60
60
60
55
55
55
55
55
55
40
40
40
40
40
40
40
40
40
40
4
4
4
4
6
6
6
7
8
8
1000
1000
1000
1500
1500
2000
2000
2000
2000
2000
¡CFK455-
Characteristics
Part Number
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min. Ripple
(dB) max. 70dB
Bandwidth
(kHz) max.
Attenuation
455T100kHz
(dB) min.
Spurious
0.1Y1MHz
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
CFK455B
CFK455C
CFK455D
CFK455E
CFK455E10
CFK455F
CFK455G
CFK455H
CFK455I
CFK455J
455
455
455
455
455
455
455
455
455
455
T10
T09
T07
T05.5
T05.0
T04.2
Y
Y
Y
Y
T15
T13
T10
T08
T07.5
T06
T04
T03
T02
T01.5
3
3
3
3
3
3
3
3
3
3
T25
T23
T20
T16
T12.5
T12
T10
T07.5
T05
T04.5
80
80
80
80
80
80
80
80
70
70
50
50
50
50
50
50
50
50
50
50
4
4
4
6
6
6
6
7
8
8
1000
1000
1500
1500
1500
2000
2000
2000
2000
2000
¡CFM455-
Characteristics
Part Number
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min. Ripple
(dB) max. 60dB
Bandwidth
(kHz) max.
Attenuation
455T100kHz
(dB) min.
Spurious
0.1Y1MHz
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
CFM455A
CFM455B
CFM455C
CFM455D
CFM455E
CFM455F
CFM455G
CFM455H
CFM455I
455
455
455
455
455
455
455
455
455
T13
T10
T09
T07
T05.5
T04.2
Y
Y
Y
T17.5
T15
T13
T10
T8
T6
T4
T3
T2
3
3
3
3
3
3
3
3
3
T30
T25
T23
T20
T16
T12
T10
T07.5
T05
50
50
50
50
45
45
45
45
45
30
30
30
30
30
30
30
30
30
3
3
3
3
5
6
6
6
7
1000
1000
1000
1500
1500
2000
2000
2000
2000
27
No.P05E9.pdf 00.7.20This is the PDF file of catalog No.P05E-9.
¡CFL455-
¡CFX455-
Characteristics
Part Number
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min. Ripple
(dB) max. 70dB
Bandwidth
(kHz) max.
Attenuation
455T100kHz
(dB) min.
Spurious
0.1Y1MHz
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
CFX455B
CFX455C
CFX455D
CFX455E
CFX455E10
CFX455F
CFX455G
CFX455H
CFX455I
CFX455J
455
455
455
455
455
455
455
455
455
455
T10
T09
T07
T05.5
T05.0
T04.2
Y
Y
Y
Y
T15
T13
T10
T08
T07.5
T06
T04
T03
T02
T01.5
3
3
3
3
3
3
3
3
3
3
T25
T23
T20
T16
T12.5
T12
T10
T07.5
T05
T04.5
70
70
70
70
70
70
70
70
70
70
40
40
40
40
40
50
50
50
50
50
4
4
4
6
6
6
6
7
8
8
1000
1000
1500
1500
1500
1500
1500
1500
2000
2000
¡CFG455-
Characteristics
Part Number
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min. Ripple
(dB) max. 60dB
Bandwidth
(kHz) max.
Attenuation
455T100kHz
(dB) min.
Spurious
0.1Y1MHz
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
CFG455B
CFG455C
CFG455D
CFG455E
CFG455E10
CFG455F
CFG455G
CFG455H
CFG455I
CFG455J
455
455
455
455
455
455
455
455
455
455
T10
T09
T07
T05.5
T05.0
T04.2
Y
Y
Y
Y
T15
T13
T10
T08
T07.0
T06
T04
T03
T02
T01.5
3
3
3
3
3
3
3
3
3
3
T25
T23
T20
T16
T12.5
T12
T10
T07.5
T05
T04.5
50
50
50
50
50
50
50
50
50
50
25
25
25
25
25
25
25
25
25
25
4
4
4
6
6
6
6
6
6
8
1000
1000
1500
1500
1500
1500
1500
1500
2000
2000
¡CFJ455K-
Characteristics
Part Number
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min. Ripple
(dB) max. 60dB
Bandwidth
(kHz) max.
Attenuation
455T100kHz
(dB) min.
Spurious
0.1Y1MHz
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
CFJ455K5
CFJ455K14
CFJ455K8
455
455
455
Y
Y
Y
2.4 (Total)
T1.1Y
T1.3
1.0 (Total)
2
2
1.5
4.5 (Total)
4.5 (Total)
3.0 (Total)
Y
Y
60
60
( )
60
( )
Y
6
7
8
2000
2000
2000
Characteristics
Part Number
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min. Ripple
(dB) max. 70dB
Bandwidth
(kHz) max.
Attenuation
455T100kHz
(dB) min.
Spurious
0.1Y1MHz
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
CFL455B
CFL455C
CFL455D
CFL455E
CFL455E10
CFL455F
CFL455G
CFL455H
CFL455I
455
455
455
455
455
455
455
455
455
T10
T09
T07
T05.5
T05.0
T04.2
Y
Y
Y
T15
T13
T10
T08
T07
T06
T04
T03
T02
3
3
3
3
3
3
3
3
3
T25
T23
T20
T16
T12.5
T12
T10
T07.5
T05
60
60
60
60
60
60
60
60
60
40
40
40
40
40
40
40
40
40
4
4
4
6
6
6
6
7
8
1000
1000
1500
1500
1500
1500
1500
1500
2000
40 at 600
Y700kHz
40 at 600
Y750kHz
1. Operating temperature range is Y20Dto W80D.
2. Aging variation of frequency is within 0.4% over 10 years.
3. Ripple definition range is within the 3 dB bandwidth mentioned in the standards list whenever the 3 dB bandwidth standard is provided.
. It is within a 6 dB bandwidth mentioned in the standards list whenever 3 dB bandwidth is not provided.
28
No.P05E9.pdf 00.7.20This is the PDF file of catalog No.P05E-9.
¡CFR455-
!DIMENSIONS
¡CFS455-
4-0.8φ1.5T0.3
29.0T0.5
10.5T0.5
4.0T0.5
7.5T0.5
0.5 max.
0.3T0.1
Connection
q Input
e Output
wr Ground
(in : mm)
4.0T0.3
26.0T0.5
rw
eq
Connection
q Input
e Output
wr Ground
(in : mm)
4-0.8φ1.2T0.3
23.5
10.5T0.5
4.0T0.5
7.5T0.5
0.5 max.
0.3T0.1
4.0T0.3
20.0T0.3
W0
Y1
rw
eq
¡CFM455-
Connection
q Input
e Output
wr Ground
(in : mm)
4-0.8φ1.2T0.3
20.0
10.5T0.5
4.0T0.5
7.5T0.5
0.5 max.
0.3T0.1
4.2T0.3
16.8T0.3
W0
Y1.0
rw
eq
¡CFK455-
Connection
q Input
e Output
wr Ground
(in : mm)
4-0.5φ1.5T0.1
16.5T0.2
10.5 max.
4.0T0.5
7.4T0.1
0.5 max.
0.3T0.1
4.2T0.1
14.2T0.1
rw
eq
¡CFL455-
Connection
q Input
e Output
wr Ground
(in : mm)
4-0.5φ1.5T0.1
16.5T0.2
10.5 max.
4.0T0.5
7.4T0.1
0.5 max.
0.3T0.1
4.2T0.1
14.2T0.1
rw
eq
¡CFX455-
Connection
q Input
e Output
wr Ground
(in : mm)
4-0.5φ1.5T0.1
10.8T0.2
9.5 max.
4.0T0.5
7.0T0.3
0.5 max.
0.25T0.1
4.5T0.2
9.0T0.2
rw
eq
¡CFG455-
Connection
q Input
e Output
wr Ground
(in : mm)
4-0.5φ1.5T0.1
10.8T0.2
9.5 max.
4.0T0.5
7.0T0.3
0.5 max.
0.25T0.1
4.5T0.2
9.0T0.2
rw
eq
¡CFJ455K-
Connection
q Input
e Output
wr Ground
(in : mm)
4-0.8φ1.2T0.3
23.5
10.5T0.5
4.0T0.5
7.5T0.5
0.5 max.
0.3T0.1
4.0T0.3
20.0T0.3
W0
Y1
rw
eq
29
No.P05E9.pdf 00.7.20This is the PDF file of catalog No.P05E-9.
!TEST CIRCUIT
¡Measuring Circuit Diagram of the CF-455-Series
!EXAMPLES OF CHARACTERISTICS
¡Frequency Characteristics of the CFK455-Series
¡Frequency Characteristics of CFJ455K5
¡
Frequency Characteristics Comparison of the CF-455E Series
¡Spurious Response of CFS455E
Rg
S.S.G.
R1CF-455
R2R.F.Voltmeter
R1WRg=R2= Impedance in Standards List
qe
rw
0
10
20
30
40
50
60
70
80
90
100
415 425 435 445 455 465 475 485 495
Frequency (kHz)
Attenuation (dB)
CFK455B
CFK455D
CFK455E
CFK455F
CFK455H
0
10
20
30
40
50
60
70
80
90
100
415 425 435 445 455 465 475 485 495
Frequency (kHz)
Attenuation (dB)
CFM455E
CFG455E
CFS455E
CFK455E
CFR455E
CFL455E
0
10
20
30
40
50
60
70
80
90
100 450 452.5 455 457.5 460
Frequency (kHz)
Attenuation (dB)
0
20
40
60
80
100012345678910
Frequency (MHz)
Attenuation (dB)