Please read rating and
!CAUTION
(for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc.
!Note
•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.
•This catalog has only typical specifications. Therefore, you are requested to approve our product specification please approve our product specification or transact the approval sheet for product specification before ordering.
This catalog has only typical specifications because there is no space for detailed specifications. Therefore, or to transact the approval sheet for product specificaion before ordering.
P05E11.pdf 02.9.2
Ceramic Filters (CERAFILr)/Ceramic Discriminators for Communications Equipment
CERAFILr Plastic Case Group Delay Flat Type CFULA_Y Series
8.0±0.3
CFULA_Y series are high selectivity ceramic filters,
which consist of 4 ceramic elements connected in a
ladder form.
Most suitable for digital communications and cellular
phones because of their improved GDT characteristics.
EIAJ
CODE
7.3±0.3
7.0±0.3
MARKING
0.8±0.1
0.3±0.1
s
Features
1. High selectivity.
2. A variety of bandwidth available.
3. Excellent GDT characteristics are available within
pass bandwidth.
4. Easily mounted on a printed circuit board
5. Operating temperature range : -20 to +80 (degree C)
Storage temperature range : -40 to +85 (degree C)
Center
6dB
Frequency (fo) Bandwidth
(kHz)
(kHz)
455.0
±1.5kHz
455.0
±1.5kHz
455.0
±1.0kHz
455.0
±1.0kHz
455.0
±1.0kHz
455.0
±1.0kHz
fn±15.0
min.
fn±12.5
min.
fn±10.0
min.
fn±7.5
min.
fn±6.0
min.
fn±4.5
min.
Stop
Bandwidth
(kHz)
Stop Band
Attenuation
(dB)
0.15±0.05
2.7±0.3
(2)
(3)
1.5max.
3.0±0.3
Connection
(1) : Input
(2) : Ground
(3) : Output
(in mm)
Marking
BY
CY
DY
EY
FY
GY
1.2±0.5
4.2±0.3
0.6±0.1
(1)
3.3±0.5
Type
CFULA455KB4Y-B0
CFULA455KC4Y-B0
CFULA455KD1Y-B0
CFULA455KE1Y-B0
CFULA455KF1Y-B0
CFULA455KG1Y-B0
Part Number
CFULA455KB4Y-B0
CFULA455KC4Y-B0
CFULA455KD1Y-B0
CFULA455KE1Y-B0
CFULA455KF1Y-B0
CFULA455KG1Y-B0
Insertion
Loss
(dB)
GDT Deviation
(µs)
Input/Output
Impedance
(ohm)
1500
1500
1500
1500
2000
2000
fn±35.0 max.
25 min.
5.0 max.
15.0 max.
[within 40dB] [within fn±100kHz] [at minimum loss point] [within fn±10kHz]
fn±30.0 max.
25 min.
6.0 max.
[within 40dB] [within fn±100kHz] [at minimum loss point]
fn±25.0 max.
23 min.
7.0 max.
[within 40dB] [within fn±100kHz] [at minimum loss point]
fn±20.0 max.
23 min.
8.0 max.
[within 40dB] [within fn±100kHz] [at minimum loss point]
fn±17.5 max.
23 min.
9.0 max.
[within 40dB] [within fn±100kHz] [at minimum loss point]
fn±15.0 max.
23 min.
10.0 max.
[within 40dB] [within fn±100kHz] [at minimum loss point]
15.0 max.
[within fn±8kHz]
20.0 max.
[within fn±7kHz]
20.0 max.
[within fn±5kHz]
20.0 max.
[within fn±4kHz]
20.0 max.
[within fn±3kHz]
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.
(fn) means nominal center frequency 455kHz.
The order quantity should be an integral multiple of the "Minimum Quantity" shown in package page in this catalog.
s
Test Circuit
14
(3)
(1) (2)
R1
Rg
S.S.G.
0dBm
E1
R2
E2
RF Voltmeter
Connection
(1) : Input
(2) : Ground
(3) : Output
Rg+R1=R2=Input/Output Impedance
39
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