Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.
• Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specification or transact the approval sheet for product specification before ordering.
!Note
Note
P05E11.pdf 02.9.2
Ceramic Filters (CERAFILr)/ Ceramic Discriminators for Communications Equipment
CERAFILr Plastic Case General Use CFWLB_A Series
9.5±0.3
MARKING
CFWLB_A series ceramic filters are miniature, high
performance ceramic filters composed of piezoelectric
elements connected in a ladder form.
EIAJ
CODE
Connection
(1) :Input
(2) :Output
(3)
These filters, with only 6.3mm high, are 67% the
volume of conventional types. (CFWLB_A series)
They are well suited for miniaturizing various kinds
of communications equipment, pocket pagers, pagers,
car radios, cordless telephones and mobile telephones.
0.7±0.1
(4) :Ground
}
(5)
0.15±0.05
2.5±0.3
0.5±0.1
2.7±0.3 2.8±0.3
0.9±0.3
(in mm)
Type
Marking
(2)
(1)
(3)
CFWLB455KBFA-B0 W55B
CFWLB455KCFA-B0 W55C
CFWLB455KDFA-B0 W55D
CFWLB455KEFA-B0 W55E
CFWLB455KFFA-B0 W55F
CFWLB455KGFA-B0 W55G
CFWLB455KHFA-B0 W55H
CFWLB455KJFA-B0 W55I
(4)
(5)
0.7±0.3
■ Features
1. Miniature and high selectivity.
2. A variety of bandwidths are available.
3. Operating temperature range : -20 to +80 (degree C)
Storage temperature range: -40 to +85 (degree C)
Nominal Center
Frequency (fn)
(kHz)
6dB
Bandwidth
(kHz)
Stop
Bandwidth
(kHz)
Stop Band
Attenuation
(dB)
Insertion
Loss
(dB)
Input/Output
Impedance
(ohm)
Part Number
fn±15.0
min.
fn±30.0 max.
[within 50dB]
35 min.
[within fn±100kHz]
4.0 max.
[at minimum loss point]
CFWLB455KBFA-B0
CFWLB455KCFA-B0
CFWLB455KDFA-B0
CFWLB455KEFA-B0
CFWLB455KEFA004-B0
CFWLB455KFFA-B0
CFWLB455KGFA-B0
CFWLB455KHFA-B0
CFWLB455KJFA-B0
455
455
455
455
455
455
455
455
455
1500
fn±12.5
min.
fn±24.0 max.
[within 50dB]
35 min.
[within fn±100kHz]
4.0 max.
[at minimum loss point]
1500
1500
1500
1500
2000
2000
2000
2000
fn±10.0
min.
fn±20.0 max.
[within 50dB]
35 min.
[within fn±100kHz]
4.0 max.
[at minimum loss point]
fn±7.5
min.
fn±15.0 max.
[within 50dB]
35 min.
[within fn±100kHz]
6.0 max.
[at minimum loss point]
fn±7.5
min.
fn±15.0 max.
[within 60dB]
60 min.
[within fn±15kHz to 30kHz]
5.0 max.
[at fn]
fn±6.0
min.
fn±12.5 max.
[within 50dB]
35 min.
[within fn±100kHz]
6.0 max.
[at minimum loss point]
fn±4.5
min.
fn±10.0 max.
[within 50dB]
35 min.
[within fn±100kHz]
6.0 max.
[at minimum loss point]
fn±3.0
min.
fn±9.0 max.
[within 50dB]
55 min.
[within fn±100kHz]
6.0 max.
[at minimum loss point]
13
fn±2.0
min.
fn±7.0 max.
[within 50dB]
55 min.
[within fn±100kHz]
7.0 max.
[at minimum loss point]
For safety purposes, connect the output of filters to the IF amplifier through a D.C. blocking capacitor.Avoid applying a direct current to the output of ceramic filters.
The order quantity should be an integral multiple of the "Minimum Quantity" shown in package page in this catalog.
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