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 Miniaturized Type CFULB_Y Series
6.5±0.3
Ceramic filter CFULB_Y series are miniature and high
performance filters. These filters, with only 6.3mm
high, are 65% the volume of conventional types
(CFULA455K_Y series).
Well suited for miniaturizing the communications
equipment, especially for a cellular phone.
MARKING
EIAJ
CODE
6.5±0.3
1.0 max.
6.3±0.3
0.7±0.1
3.5±0.3
0.15±0.05
2.4±0.3
Connection
(1) : Input
(2) : Output
(3)
: Ground
(4)
}
0.8±0.3
1.8±0.3
0.7±0.3
4.3±0.3
(1)
(3)
(2)
(4)
0.5±0.1
(in mm)
s
Features
1. Miniature, flat GDT characteristics.
2. Suitable for a cellular phone.
3. A variety of band width are available.
4. 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)
Insertion
Loss
(dB)
1.0±0.3
Type
Marking
CFULB455KB4Y-B0
BY
CFULB455KC4Y-B0
CY
CFULB455KD1Y-B0
DY
CFULB455KE1Y-B0
EY
CFULB455KF1Y-B0
FY
CFULB455KG1Y-B0
GY
Part Number
CFULB455KB4Y-B0
CFULB455KC4Y-B0
CFULB455KD1Y-B0
CFULB455KE1Y-B0
CFULB455KF1Y-B0
CFULB455KG1Y-B0
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.
CFULB455K_Y series filters are 4-element ceramic filters and miniature versions of CFULA455K_Y series.
s
Test Circuit
R1
(1)
(2)
(3) (4)
R2
E2
RF Voltmeter
Connection
(1) : Input
(2) : Output
(3)(4) :Ground
Rg
S.S.G.
0dBm
E1
16
Rg+R1=R2=Input/Output Impedance
43
MURATA [ MURATA MANUFACTURING CO., LTD. ]
