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Medium Cut-Off Highpass

Custom Built LC Filters - 100 Hz to 1000 MHz

page LC_F/MCOHP
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Allen Avionics manufacturers Highpass Filters using many design types such as: Butterworth, Chebyshev and Elliptic Functions. The filters tabulated on this page are Chebyshev type. Other types can be designed when their special properties are needed.

  • Frequency Range: 100 Hz to 1000 MHz

  • Impedance Range: 50 Ohms to 20K Ohms

  • Construction: Epoxy encapsulated or sealed in metal cans

  • Delivery: Prototypes can often be delivered in less than 7 days.
    Call or e-mail factory for special sizes

  • Maximum Ripple: .5dB

  • Maximum Insertion Loss: 1dB

Order any Cut-Off Frequency from 100 Hz to 1000 MHz. Interpolation between tabulated data allowable.

Size (Inches)

Units normally supplied in metal cans for printed circuit mounting (or end terminals). SMA connectors same size. BNC connectors may require larger cans. Epoxy cases available where listed in table.

Metal Cans

Encapsulated in Epoxy Case:
 

L

W

H

 

L

W

H

J -    1.00 x .750 x .500 S -    1.250 x .875 x .625
K -   1.50 x 1.000 x .750 U -   2.00 x 1.125 x .750
K1 -  2.00 x 1.125 x .750 W -  2.50 x 1.125 x .750
K2 -  2.50 x 1.125 x .750 X 3.00 x 1.500 x 1.00
K3 -  3.00 x 1.125 x .750 X1 -  3.00 x 2.00 x  1.00
M -  3.00 x 1.625 x 1.125 Y -  4.00 x 1.500 x 1.125
M1 - 3.00 x 2.000 x 1.250 Y1 - 4.00 x 2.000 x 1.250
N -  4.00 x 1.500 x 1.250 Z -  4.50 x 2.500 x 1.375
N1 - 4.00 x 2.000 x 1.250        

Click here for mechanical specs

Custom Medium Cutoff LC Highpass Filters - Series MCOHP

Cut-Off (Fc) Frequency
3 dB Max.

Impedance
Range
(Ohms)
Shape Factor
(see Graph)
Size
Epoxy Metal
100 Hz 1K A Y N1
B Z --
250 Hz 1K A X1 M1
B Y1 N1
C Z O
 500 Hz 1K - 3K A X1 M1
B Y1 N1
C Y1 N1
D Z --
E Z --
 1 KHz 500 - 10K A X M
B X1 M1
C Y1 N1
D Z --
E Z --
 2.5 KHz 500 - 20K A X M
B X1 M1
C Y N
D Y1 N1
E Z --
 5 KHz 150 - 20K A X M
B X1 M1
C Y N
D Y1 N1
E Y1 N1
 7.5 KHz 75 - 10K A W K2
B X M
C X1 M1
D Y N
E Y1 N1
 10 KHz 50 - 10K A W k2
B X M
C X1 M1
D Y N
E Y1 N1
 25 KHz 50 - 10K A W K2
B X M
C X M
D Y N
E Y1 N1
 50 KHz 50 - 10K A W K2
B X M
C X M
D Y N
E Y1 N1
 75 KHz 50 - 10K A U K1
B W K2
C X M
D X1 M1
E Y N
 100 KHz 50 - 5K A U K1
B W K2
C X M
D Y N
E Y N
 200 KHz 50 - 5K A S K
B U K1
C W K2
D W K2
E X M
 300 KHz 50 - 5K A S K
B U K1
C W K2
D W K2
E X M
400 KHz 50 - 5K A S K
B U K1
C W K2
D W K2
E X M
500 KHz 50 - 2.5K A S K
B U K1
C U K1
D W K2
E X M
750 KHz 50 - 1K A S K
B U K1
C U K1
D W K2
E X M
1 MHz 50 - 500 A S K
B U K1
C U K1
D W K2
E X M

*1 Connectors Only
*2 Attenuation depends on termination type and frequency

Cut-Off (Fc) Frequency
3 dB Max.

Impedance
Range
(Ohms)
Shape Factor
(see Graph)
Size
Epoxy Metal
2 MHz 50 - 250 A S K
B S K
C U K1
D W K2
E X M
3 MHz 50 - 150 A S K
B S K
C U K1
D W K2
E X K3
4 MHz 50 - 100 A S J
B S K
C U K1
D W K2
E X K3
5 MHz 50 - 100 A S J
B S K
C U K1
D W K2
E X K3
7.5 MHz 50 - 100 A -- J
B -- K
C -- K1
D -- K2
E -- K3
10 MHz 50 - 100 A -- J
B -- K
C -- K1
D -- K2
E -- K3
20 MHz 50 - 100 A -- K
B -- K1
C -- K2
D -- K3
E -- M
30 MHz 50 A -- K
B -- K1
C -- K2
D -- K3
E -- M
40 MHz 50 A -- K
B -- K1
C -- K2
D -- K3
E -- M
50 MHz 50 A -- K
B -- K1
C -- K2
D -- K3
E -- M
100 MHz 50 A -- J
B -- K
C -- K1
D -- K2
E -- K3
*1
200 MHz
50 A -- J
B -- K
C -- K1
D -- K2
E -- K3
*1
300 MHz
50 A -- J
B -- K
C -- K1
D -- K2
E -- K3
*1
400 MHz
50 A -- J
B -- K
C -- K1
D -- K2
E -- K3
*1
500 MHz
50 A -- J
B -- K
C -- K1
D -- K2
E -- K3
*1
750 MHz
50 A -- J
B -- K
C -- K1
D -- K1
E -- K2
*1
1000 MHz
50 A -- J
B -- K
C -- K1
D -- K1
E -- K2

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Phone: (516) 248-8080
Fax: (516) 747-6724
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