251920B Datasheet, PDF (1/2 Pages) Integrated Technology Future – 140.0 MHz SAW Filter

1. Features
Typical 1dB bandwidth of 19.79 MHz
High attenuation
Single Ended Operation
Dual In-line Package (DIP)
2. Electrical Specifications
Operating Temperature : +25℃
Center Frequency (fo)
Insertion Loss
2dB Bandwidth
25dB Bandwidth
40dB Bandwidth
Amplitude Ripple (fo ± 9.65 MHz)
Group Delay Variation (fo ± 9.65 MHz)
Absolute Delay
Ultimate Rejection
Temperature Coefficient of Frequency
MHz
dB
MHz
MHz
MHz
dB
nsec
usec
dB
ppm/℃
140.0 MHz SAW Filter
Part Number 251920B
Minimum
-
-
19.75
-
-
-
-
-
45
-
Source and Load Impedance = 50Ω
Typical
Maximum
140.0
-
25.5
27.0
19.79
19.85
20.57
20.65
20.75
-
0.7
1.0
60
150
2.92
-
50
-
-84
-
D3512 Package Dimension
12.8±0.5
5.5max 6.0max
7.6±0.2
Matching Schematic
39nH
1
Input
50 Ω
22pF
5
39nH
22pF
Output
50Ω
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
Pin Configuration
1
Ground
5
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: [phone]
Fax: [phone]
http://www.itf.co.kr [e-mail]
2010. 09.14
Rev 1.0