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251860B Datasheet, PDF (1/2 Pages) Integrated Technology Future – Typical 1dB bandwidth of 18.9 MHz
1. Features
Typical 1dB bandwidth of 18.9 MHz
High attenuation
Single Ended Operation
Surface Mounted Package (SMD)
2. Electrical Specifications
Room Temperature : +25℃
Center Frequency (fo)
Insertion Loss
1dB Bandwidth
3dB Bandwidth
40dB Bandwidth
Amplitude Ripple (fo ± 9.05 MHz)
Group Delay Variation (fo ± 9.05 MHz)
Absolute Delay
Ultimate Rejection
Temperature Coefficient of Frequency
Relative Attenuation
fo ± 10.4925 MHz
fo ± 10.7425 MHz
Input POWER : +10dBm
MHz
dB
MHz
MHz
MHz
dB
nsec
usec
dB
ppm/℃
dBc
dBc
198.0 MHz SAW Filter
Part Number 251860B
Source and Load Impedance = 50Ω
Minimum
Typical
Maximum
-
198.0
-
-
23.5
25.0
18.75
18.90
-
-
19.36
-
-
21.21
21.40
-
0.6
1.2
-
40
80
-
1.97
2.0
45
53
-
-
-18
-
-
25
40
50
S1365 Package Dimension
Matching Schematic
13.30± 0.2
10
9
8
7
11
ITF 13A001
6
251860B
12
。198-18.9M
5
1
2
3
4
7.62± 0.1
7
8
9
10
6
11
1.50± 0.1
5
12
4
3
2
1
2.54± 0.1
0.80± 0.1
Input
50Ω
L1
11
L2
5
L3
Output
50Ω
L4
Dimensions shown are nominal in millimeters
Body : Al2O3
Lid : Kovar, Ni Plated
Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating
L1 = 18nH, L2 = L3 = 3.3nH, L4 = 15nH
Pin Configuration
Input
11
Ground
6, 12
Output
5
Others
Ground
I T F Co., Ltd.
102-901, Bucheon Technopark 364, Samjeong-Dong,
Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Tel: 82-32-621-1213
Fax: 82-32-621-1218
http://www.itf.co.kr sales@itf.co.kr
2013. 04. 30
Rev 1.0