Dielectric Filters
TYPE
4DFA
4DFA-866A-10
866.0
± 2.0
3.0
1.0
1.43
30 (fo 105)
CT2
4DFA-886A-10
886.0
± 1.0
3.0
1.0
2.0
22 (fo ± 45)
Cordless Phone
4DFA-931A-10
931.0
± 1.0
3.0
1.0
2.0
22 (fo ± 45)
Cordless Phone
4DFA-915E-10
915.0
± 13.0
2.2
1.0
2.0
18 (fo ± 77.5)
Spread Spectrum
4DFA-1227B-10
1227.0
± 5.0
2.0
0.8
2.0
7, 30 (fo ± 35, ± 140) GPS
12.5
5
9.6
7
GND
1
7
1
OUT
IN
1.5
*12.5
Max.
TYPE 4DFA: SMD 2 Pole Designs
Attenuation
at 1540.4MHz
11.3dB
at 1610.4MHz
8.9dB
at 1435.4MHz
44.2dB
at 1715.4MHz
33.9dB
TYPE 4DFA (2 Pole SMD Type)
Frequency Range:
800~2500MHz
Temperature Range: 40°C~+ 85°C
Measurement values:
4DFA-1575B-10
Characteristics
SELECTION GUIDE FOR STANDARD DEVICES
4DFA-836E-10
836.5
± 12.5
2.0
1.0
2.0
18 (fo ± 77.5)
AMPS
4DFA-881E-10
881.5
± 12.5
2.0
1.0
2.0
18 (fo ± 77.5)
AMPS
4DFA-964E-10
964.0
± 12.5
2.0
1.0
2.0
18 (fo ± 77.5)
AMPS
4DFA-902E-10
902.5
± 12.5
2.0
1.0
2.0
18 (fo ± 77.5)
NMT/GSM
4DFA-947E-10
947.5
± 12.5
2.0
1.0
2.0
18 (fo ± 77.5)
NMT/GSM
TOKO
Part
Number
Center
Frequency
(MHz)
Insertion
Loss
(dB) Max.
Ripple
in BW
(dB) Max.
V.S.W.R.
in BW
Max.
Application
Bandwidth
(fo ± MHz)
Selectivity
(dB) Min. (MHz)
The Part Numbers shown in the table below are standard devices, which
are readily available. TOKO will design and manufacture modified and
custom devices with specific characteristics to meet your requirements.
If you do not find the device for your application in this catalog, please
contact our sales or representative office.
*: Depends on Center Frequency.
*:
Passband Insertion Loss
1.42dB
Passband Ripple
0.12dB
Passband V.S.W.R.
1.13
4DFA-1227B-11
1227.0
± 5.0
1.2: 0.7 Typ.
0.5
2.0
15, 20 (fo + 140, 140) GPS
4DFA-1575B-10
1575.4
± 5.0
2.0: 1.4 Typ.
0.8
2.0
7, 30 (fo ± 35, ± 140) GPS
4DFA-1575B-12
1575.4
± 5.0
1.2: 0.7 Typ.
0.5
2.0
17, 20 (fo + 140, 140) GPS
4DFA-1575B-14
1575.4
± 5.0
2.5: 1.8 Typ.
0.8
2.0
17 (fo ± 50)
GPS
4DFA-1550L-10
1550.0
± 30.0
1.2: 0.7 Typ.
0.7
2.0
12, 16 (fo + 150, 150) MCSS
4DFA-1890D-10
1890.0
± 10.0
2.0
1.0
2.0
20 (fo ± 89)
DECT
4DFA-1903C-10
1903.0
± 8.0
2.7
1.0
2.0
15, 27 (fo ± 50, ± 100) JDCT
4DFA-2442P-10
2442.0
± 40.0
2.5
1.0
2.0
15 (fo ± 250)
Spread Spectrum
4DFA-2500A-10
2500.0
± 2.0
3.0
1.0
2.0
18, 25 (fo ± 60, ± 90)
VICS
4DFA-1575B-10
Center Frequency: 1,575.4MHz
Span: 300MHz
Attenuation
(dB)
Return
Loss
(dB)
0
5
10
15
20
25
30
35
40
45
50
0
5
10
15
20
25
30
35
40
45
50
Attenuation
Return loss
(Unit: mm)
Tolerance: ± 0.5