140.0 MHz SAW Filter
Part Number
250421B
1. Features
Typical 2dB bandwidth of 4.2 MHz
Single Ended Operation
Dip Package
2. Electrical Specifications
Source and Load Impedance = 50
Room Temperature : +25℃
℃
Center Frequency (fo)
Insertion Loss
2dB Bandwidth
3dB Bandwidth
25dB Bandwidth
40dB Bandwidth
Amplitude Ripple (fo ± 1.9 MHz)
Group Delay Variation (fo ± 1.9 MHz)
Absolute Delay
Ultimate Rejection
Temperature Coefficient of Frequency
MHz
dB
MHz
MHz
MHz
MHz
dB
nsec
usec
dB
ppm/℃
2
Minimum
-
-
4.16
-
-
-
-
-
-
50
-
Typical
140.0
24.5
4.19
4.27
4.91
5.08
0.5
125
3.08
54
-0.03
Maximum
-
26.5
-
-
5.0
-
1.0
230
-
-
-
D3512 Package Dimension
12.8± 0.5
5.5m ax 6.0m ax
7.6± 0.2
2.5±0.2
Matching Schematic
100 nH
Input
50
Ω
1
39 pF
5
100 nH
Output
50
Ω
ITF 10A001
10A001
250421B
250421B
140-4.2M
140-4.2M
35.1±0.5
51 pF
0.45±0.05
2.5±0.2
25.4±0.2
Pin Configuration
Dimensions shown are nominal in millimeters
Base : Fe(SPCC), Au plating over Ni plated
Cap : Cu & Cr Alloy, Ni Plated
Termination : Kovar, Au Plated
Input
Output
1
5
Ground
Others
2,4
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
2010. 04. 05
Rev 1.0
ITF [ INTEGRATED TECHNOLOGY FUTURE ]
