251104B Datasheet, PDF (1/2 Pages) Integrated Technology Future – 139.0 MHz SAW Filter

1. Features
Typical 1dB bandwidth of 11.0 MHz
High attenuation
Single Ended Operation
Dual In-line Package (DIP)
139.0 MHz SAW Filter
Part Number 251104B
2. Electrical Specifications
Operating Temperature : +25℃
Center Frequency (fo)
MHz
Insertion Loss
dB
1dB Bandwidth
MHz
3dB Bandwidth
MHz
40dB Bandwidth
MHz
Amplitude Ripple (fo ± 5.4MHz)
dB
Group Delay Variation (fo ± 5.4MHz)
nsec
Absolute Delay
usec
Ultimate Rejection
Temperature Coefficient of Frequency
dB
ppm/℃
Out of Band Gain
@BW Edge ± 400KHz
dB
@BW Edge: 5.5 MHz
Source and Load Impedance = 50Ω
Minimum Typical Maximum
-
139.0
-
-
26.5
28.0
11.0
11.04
-
-
11.18
-
-
11.8
-
-
0.6
1.0
-
70
150
-
4.97
-
45
50
-
-
-18
-
26
38
D3512 Package Dimension
12.8±0.5
5.5max 6.0max
7.6±0.2
Matching Schematic
39nH
1
Input
50 Ω
47pF
5
33nH
47pF
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]
2011. 01. 24
Rev 1.0