Sharp Cut-Off Low Pass Filter
Custom Built LC Filters - 500 Hz to 3000 MHz
Anti-Aliasing, Reconstruction and Band Limiting

scolp_Pr

Allen Avionics manufacturers Lowpass 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: 500 Hz to 3000 MHz

  • Impedance Range: 50 Ohms to 20K Ohms

  • Construction: Epoxy encapsulated or sealed in metal cans

  • Available Connectors: Include BNC, Type N,UHF, Printed Circuit and Surface Mounting

  • 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

  • Custom Packages and Mounting are available, FAX or E-Mail your requirements

Order any Cut-Off Frequency from 500 Hz to 3000 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

K3  3.00 1.125  .750 W 2.50 1.125 .750
K4 4.00 1.125 .750 X 3.00 1.500 1.00
M 3.00 1.625 1.125 X1 3.00 2.00 1.00
M1 3.00 2.000 1.250 Y 4.00 1.500 1.125
N 4.00 1.500 1.250 Y1 4.00 2.000 1.250
N1 4.00 2.000 1.250 Z  4.50 2.500 1.375
O 5.00 1.500 1.125        
O1 5.00 2.000 1.250        
P 6.00 1.500 1.250        
P1 6.00 2.000 1.250        

Custom Sharp Cutoff LC Lowpass Filters - Series SCOLP

Cut-Off (Fc) Frequency
3 dB Max.

Impedance
Range
(Ohms)
Shape Factor
(see Graph)
Size
Epoxy Metal
*1 500 Hz 200 - 5K B Z --
1K Hz 200 - 10K F Z --
 2.5 KHz 200 - 20K F Z --
G Z --
 3 KHz 200 - 20K F Y1 N1
G Z --
 4 KHz 150 - 20K F Y1 N1
G Z P1
 5 KHz 150 - 20K F Y1 N1
G Z O1
H Z P1
 7.5 KHz 150 - 20K F Y1 N1
G Y1 N1
H Z O1
H1 P Z1
10 KHz 50 - 10K F Y1 N1
G Y1 N1
H Z O1
H1 Z P1
H2 Z --
 20 KHz 50 - 10K F Y1 N1
G Y1 N1
H Z O1
H1 Z P1
H2 Z --
30 KHz 50 - 10K F Y1 N1
G Y1 N1
H Z O1
H1 Z P1
H2 Z P1
40 KHz 50 - 10K F Y1 N1
G Y1 N1
H Y1 N1
H1 Z O1
H2 Z P1
50 KHz 50 - 10K F Y1 N1
G Y1 N1
H Y1 N1
H1 Z O1
H2 Z P1
 75 KHz 50 - 7.5K F Y1 N1
G Y1 N1
H Y1 N1
H1 Z O1
H2 Z P1
 100 KHz 50 - 5K F Y N
G Y1 N1
H Y1 N1
H1 Z O1
H2 Z P1

Cut-Off (Fc) Frequency
3 dB Max.

Impedance
Range
(Ohms)
Shape Factor
(see Graph)
Size
Epoxy Metal
 5 MHz 50 - 100 F X M
G X M
H Y N
H1 -- N1
H2 -- N1
 7.5 MHz 50 - 100 F -- K3
G -- M
H -- N
H1 -- N
H2 -- O
 10 MHz 50 - 100 F -- K3
G -- M
H -- M
H1 -- N
H2 -- O
 15 MHz 50 - 100 F -- K3
G -- M
H -- N
H1 -- N
H2 -- O
 20 MHz 50 - 75 F -- K3
G -- M
H -- N
H1 -- N
H2 -- O
30 MHz 50 F -- M
G -- N
H -- N
H1 -- O
H2 -- O
40 MHz 50 F -- M
G -- N
H -- N
H1 -- O
H2 -- O
50 MHz 50 F -- M
G -- N
H -- N
H1 -- O
H2 -- P
75 MHz 50 F -- M
G -- N
H -- N
H1 -- O
H2 -- P
100 MHz 50 F -- M
G -- N
H -- O
H1 -- P
H2 -- P

Custom Sharp Cutoff LC Lowpass Filters - Series SCOLP

Cut-Off (Fc) Frequency
3 dB Max.

Impedance
Range
(Ohms)
Shape Factor
(see Graph)
Size
Epoxy Metal
 200 KHz 50 - 5K F Y1 N
G Y1 N1
H Y1 N1
H1 Z O1
H2 Z P1
 300 KHz 50 - 5K F X1 M1
G Y N
H Y N
H1 Y1 N1
H2 Z O1
 400 KHz 50 - 5K F X1 M1
G Y N
H Y N
H1 Y1 N1
H2 Z O1
 500 KHz 50 - 2.5K F X1 M1
G X1 M1
H Y N
H1 Y1 N1
H2 Y1 N1
 750 KHz 50 - 1K F X M
G X1 M1
H Y N
H1 Y1 N1
H2 Y1 N1
 1 MHz 50 - 500 F X M
G X1 M1
H Y N
H1 Y N
H2 Y1 N1
 2 MHz 50 - 500 F X M
G X1 M1
H Y N
H1 Y N
H2 Y1 N1
 3 MHz 50 - 250 F X M
G X1 M1
H Y N
H1 Y N
H2 Y1 N1
 4 MHz 50 - 150 F X M
G X M
H Y N
H1 Y1 N1
H2 -- N1

Cut-Off (Fc) Frequency
3 dB Max.

Impedance
Range
(Ohms)
Shape Factor
(see Graph)
Size
Epoxy Metal
200 MHz 50 F -- K3
G -- K4
H -- N
H1 -- O
H2 -- P
300 MHz 50 F -- K3
G -- K4
H -- N
H1 -- O
H2 -- P
400 MHz 50 F -- M
G -- N
H -- O
H1 -- P
500 MHz 50 F -- K3
G -- K4
H -- N
H1 -- O
H2 -- P
750 MHz 50 F -- K3
G -- K4
H -- N
H1 -- O
H2 -- P
1000 MHz 50 F -- K3
G -- K4
H -- N
H1 -- O
H2 -- O
1500 MHz 50 F -- K3
G -- K4
H -- N
H1 -- O
2000 MHz 50 F -- K3
G -- K4
H -- N
H1 -- O
2500 MHz 50 F -- K3
G -- K4
H -- N
3000 MHz 50 F -- K3
G -- K4
H -- N

 

Custom Sharp Cutoff LC Lowpass Filters - Series SCOLP

*1 2dB maximum insertion loss
*2 1dB maximum ripple
*3 Attenuation depends on termination type and frequency

 
Allen Avionics, Inc.
255 East Second Street, Mineola, NY  11501
Phone: (516) 248-8080
Fax:
(516) 747-6724
E-Mail: Info@AllenAvionics.com

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