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FILTERS FOR COMMUNICATIONS EQUIPMENT
RESIN MOLDED –HIGHLY SELECTIVE
CFUM/CFWM 450/455kHz SERIES
The CFUM and CFWM lines
of ceramic filters are miniaturized
versions of the CFU/CFWS lines.
These ultra-miniature versions consume
approximately 40% less volume while
still offering the same high performance
filter characteristics available with the
CFU/CFWS lines. They are available in
450kHz and 455kHz versions.
DIMENSIONS: mm
CFUM
6.5
6.5
6.3
0.15
2.4
3.5
1.8 0.8
ቢባ
ቤብ
0.7
4.3
1.0
0.7
0.5
CFWM
9.5 6.5
6.3
0.15
2.5
3.5
2.7 2.8
ቢባ
ብቦ
0.9
4.3
1.0
0.7
0.7
0.5
SPECIFICATIONS
Part Number
Nominal Center 6dB Bandwidth 40dB Bandwidth
Frequency (kHz)
(kHz) min.
(kHz) max.
‚CFUM455B
455
±15
±30
‚CFUM455C
455
±12.5 ±24
‚CFUM455D
455
±10
±20
‚CFUM455E
455
±7.5
±15
‚CFUM455F
455
±6
±12.5
‚CFUM455G
455
±4.5
±10
‚CFUM455H
455
±3
±9
‚CFUM455I
455
±2
±7.5
‚CFWM455B
455
±15
±30
‚CFWM455C
455
±12.5 ±24
‚CFWM455D
455
±10
±20
‚CFWM455E
455
±7.5
±15
‚CFWM455F
455
±6
±12.5
‚CFWM455G
455
±4.5
±10
‚CFWM455H
455
±3
±9
‚CFWM455I
455
±2
±7.5
• CFUM455series filters are 4-element ceramic filters and ultraminiature versions of CFU4552 series.
• CFWM455series filters are 6-element ceramic filters and ultraminiature versions of CFWS455series.
Attenuation
455±100kHz
(dB) min.
27
27
27
27
27
25
35
35
35
35
35
35
35
35
55
55
PART NUMBERING SYSTEM
Ripple
(dB) max. kHz
2 (455 ± 7.0)
1.5 (455 ± 5.0)
1.5 (455 ± 4.0)
1.5 (455 ± 3.0)
1.5 (455 ± 2.0)
2 (455 ± 1.5)
3 (455 ± 10.0)
3 (455 ± 8.0)
3 (455 ± 7.0)
3 (455 ± 5.0)
3 (455 ± 4.0)
2 (455 ± 3.0)
2 (455 ± 2.0)
2 (455 ± 1.5)
Insertion Loss
(dB) max.
4
4
4
6
6
6
6
7
4
4
4
6
6
6
6
7
Input/Output
Impedance ()
1500
1500
1500
1500
2000
2000
2000
2000
1500
1500
1500
1500
2000
2000
2000
2000
CFUM/CFWM 455 D
B
SERIES
Ultra-miniature
450 OR 455
Frequency in kHz
BANDWIDTH
TYPE
‚Available as standard through authorized Murata Electronics Distributors. ̆Applicable in North American market only. ̄Applicable in European market only.
For more detailed information regarding this product line in North America, see Catalog No. P-05-D. To receive additional information on Murata Products call 1-800 -831-9172.
For more detailed information regarding this product line in Europe, see Catalog No. P05E-8.
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