CH Datasheet, PDF (1/2 Pages) Littelfuse – Surface Mount Varistors - Transient Voltage Surge Suppressor

CH Series
Standard Cavity Bandpass Filter
Overview
The CH series filter cover a frequency range from 30 MHz to 3,000 MHz. Percent 3 dB bandwidth ranges from 0.2% to 3%. The CH series uses a helical coil design to
achieve lower frequency operation.
Units are available with two through six sections providing a Chebyshev response with low insertion loss. VSWR is less than 1.5:1. Each unit is housed in a high "Q"
sturdy aluminum case. Cavities are iris coupled and shielded to minimize RF leakage.
Specifications
Center Frequency
Range
Min. 3dB Relative
Bandwidth (in %
of center
frequency)
Maximum
Insertion Loss at
Center Frequency
Nominal
Impedance
Maximum VSWR
at Center
Frequency
Stopband
Attenuation
Number of
Sections
Average Input
Power (Watts
Max. to 10,000 ft.)
Peak Input Power
(Watts Max. to
10,000 ft.)
Electrical Specifications
30 to 400 MHz
0.5% to 3.0%
Consult Factory
50/75 Ohms
1.5:1
Consult Factory
2 to 6
See (1) Below
See (1) Below
Environmental
Specifications
Shock
Vibration
Humidity
Altitude
Operating
Temperature
Non-Operating
Temperature
5 G's
5 G's
90%
Unlimited
0° to 50°C
-54° to +71°C
(1)Dependent upon center frequency and percent bandwidth. Please consult factory for rated power.
Length (in.) vs. Number of Sections
Sections
L Dim.
2
2.500
3
3.625
4
4.750
5
5.875
6
7.000
Vertical mounting configurations are available.
http://www.mtronpti.com/products/Filter/Bandpass/ch-series-standard-cavity
20140227