251925B Datasheet, PDF (1/2 Pages) Integrated Technology Future – Typical 1dB bandwidth of 19.3 MHz

1. Features
Typical 1dB bandwidth of 19.3 MHz
High attenuation
Single Ended Operation
Dual In-line Package (DIP)
2. Electrical Specifications
Room Temperature : +25℃
Center Frequency (fo)
Insertion Loss
1 dB Bandwidth
3dB Bandwidth
20dB Bandwidth
40dB Bandwidth
Amplitude Ripple (fo ± 9.4 MHz)
Group Delay Variation (fo ± 9.4 MHz)
Absolute Delay
Ultimate Rejection
Maximum input Power
Temperature Coefficient of Frequency
MHz
dB
MHz
MHz
MHz
MHz
dB
nsec
usec
dB
dBm
ppm/℃
145.0 MHz SAW Filter
Part Number 251925B
Minimum
-
-
19.15
-
-
-
-
-
-
40
-
Source and Load Impedance = 50Ω
Typical
Maximum
145.0
-
26.5
28.0
19.36
-
19.68
-
20.6
20.65
21.05
-
1.1
1.5
40
80
2.08
-
45
-
-
10
-72
D2012 Package Dimension
12.7±0.5
5.5max 6.0max
7.6±0.2
Matching Schematic
Input
50Ω
C1
1
L1
5
L2
Output
50Ω
C2
Dimensions shown are nominal in millimeters
Base : Fe(SPCC), Au plating over Ni plated
Cap : Cu & Cr Alloy, Ni Plated
Termination : Kovar, Au Plated
L1 = 27nH, L2 = 27nH, C1 = 36pF, C2 = 27pF
Pin Configuration
Input
1
Ground
2,4
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: [phone]
Fax: [phone]
http://www.itf.co.kr [e-mail]
2013. 03. 27
Rev 1.0