250.0 MHz SAW Filter
Part Number
262151B
1. Features
Typical 1dB bandwidth of
20.6 MHz
High attenuation
Single Ended Operation
Surface Mounted Package (SMD)
2. Electrical Specifications
Operating Temperature : 0℃ ~ 80℃
℃
℃
Center Frequency (fo)
MHz
Insertion Loss
dB
1dB Bandwidth
MHz
3dB Bandwidth
MHz
25dB Bandwidth
MHz
40dB Bandwidth
MHz
Amplitude Ripple (fo ± 9.75 MHz)
dB
Group Delay Variation (fo ± 9.75 MHz)
nsec
Absolute Delay
usec
Ultimate Rejection
dB
Temperature Coefficient of Frequency
ppm/℃
℃
Room Temperature : +25℃
℃
Insertion Loss
Amplitude Ripple (fo ± 9.93 MHz)
Group Delay Variation (fo ± 9.93 MHz)
dB
dB
nsec
Source and Load Impedance = 50
Minimum
Typical
Maximum
-
-
20.45
-
-
-
-
-
-
40
250.0
25.0
20.67
22.03
22.47
22.97
0.7
50
1.22
45
-18
-
27.0
-
-
-
23.4
1.2
80
-
-
-
Minimum
-
-
-
Typical
25.0
0.7
50
Maximum
27.0
1.2
80
S1365 Package Dimension
Matching Schematic
13.30±0.2
10
9
8
7
7
7.62±0.1
8
9
10
Input
50
Ω
11
L1
11
5
L2
Output
50
Ω
6.50±0.2
11
12
1.61±0.2
2.54±0.1
ITF 12A001
262151B
。
250-20.6M
1
2
3
4
6
6
1.50±0.1
C1
C2
5
5
12
4
3
2
2.54±0.1
1
0.80±0.1
L1 = 10nH, L2 = 22nH
C1 = 12pF, C2 = 36pF
Pin Configuration
Dimensions shown are nominal in millimeters
Body : Al
2
O
3
Lid : Kovar, Ni Pla
ted
Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating
Input
Output
11
5
Ground
Others
sales@itf.co.kr
6,12
Ground
2013. 05. 13
Rev 1.1
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
ITF [ INTEGRATED TECHNOLOGY FUTURE ]
