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Band Reject

Custom Built LC Filters

page LC_F/BR

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Allen Avionics manufacturers 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 20 MHz

  • Impedance Range: 50 Ohms to 2.5K 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: 1dB

Order any Center Frequency from 500 Hz to 20 MHz. Interpolation between tabulated Center Frequencies and Bandwidth is allowable.

The size package that each Bandpass filter requires is a function of impedance, shape factor and type of termination or connector that is needed. The sizes listed will provide you with the minimum and maximum size for the combination of shape factor and impedance. Allen Avionics has hundreds of filter packages that are not listed and can be used to custom fit your application.

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.

Metal Cans

L

W

H

K3 3.00 x 1.125 x .750
M 3.00 x 1.625 x 1.125
M1 3.00 x 2.000 x 1.250
N 4.00 x 1.500 x 1.250
N1 4.00 x 2.000 x 1.250
O 5.00 x 1.500 x 1.250
O1 5.00 x 2.000 x 1.250
P 6.00 x 1.500 x 1.250

Encapsulated in Epoxy Case

L

W

H

W 2.50 x 1.125 x .750
X 3.00 x 1.500 x 1.000
X1 3.00 x 2.000 x 1.000
Y 4.00 x 1.500 x 1.125
Y1 4.00 x 2.000 x 1.250
Z 4.50 x 2.500 x 1.375
Mechanical Specifications (click here)

 Fo = F1F2  = F3F4  = F5F6
Custom Band Reject Filters - Series BR
Center Freq. (Fo)

Q
Range
Fo /
3dB BW

Shape Factor Imp.
Range (Ohms)
Insertion Loss (dB)
Typical

Size

Epoxy Metal
500 Hz 1-7 A 1K 1 Y1 N1
1-5 A 500 - 1K 1 Y1 N1
1 KHz 5-10 A 1K 2 Z O1
1-7 B 500 - 1K 3 Y1
5 KHz 1-5 A 500 - 1.5K 1 Y1 N1
5-12 A 1K 3 Z O1
1-5 B 500 - 1.5K 1 Z
5-8 B 1K 2 Z
10 KHz 1-5 A 500-2K 1 Y1 N1
5-10 A 500- 1K 2 Y1 N1
10-15 A 1K 3 Z 01
1-5 B 500- 1K 2 Z
5-10 B 1K 3 Z
1-3 C 500- 1K 1 Z
25 KHz 1-5 A 500-2K 1 Y N
5-10 A 1K 2 Y1 N1
10-18 A 1K 3 2 01
1-5 B 500-2K 1 Y1 N1
5-12 B 1K 2 Z 01
1-4 C 500-1. 5K 3 Z
50 KHz 1-5 A 250-2K 1 Y N
5-10 A 500- 1K 2 Y1 N1
10-25 A 500-600 3 Z 01
1-5 B 250-1.5K 1 Y1 N1
5-10 B 500- 1K 2 Z O1
10-20 B 500-600 3 Z
1-5 C 500-1.5K 1 Z
5-8 C 500- 1K 3 Z
100 KHz 1-5 A 100-25K 1 X M
5-10 A 200- 1K 2 X1 M1
10-30 A 500-600 3 Y N
1-5 B 100-2K 1 Y1 N1
5-10 B 250- 1K 2 Y1 N1
10-25 B 500-600 3 Z O1
1-5 C 100-2K 1 Z
5-10 C 500-600 2 Z
250 KHz 1-5 A 50- 1K 1 W K3
5-10 A 100-500 2 X M
10-25 A 100-250 3 X1 M1
1-5 B 75-600 1 Y N
5-10 B 100-500 2 Y1 N1
10-20 B 100-250 3 Y1 N1
1-5 C 100-500 1 Y1 N1
5-8 C 100 2 Z 01
500 KHz 1-5 A 50-500 1 W K3
5-15 A 50-250 2 X M
10-12 A 100 3 X1 M1
1-5 B 50-500 1 Y N
5-12 B 75-100 2 Y1 N1
1-5 C 50-250 1 Z O1
750 KHz 1-5 A 50-200 1 Y N
5-10 A 75-100 2 Y1 N1
1-5 B 50-150 1 Y1 N1
5-7 B 75-100 2 N1
1-4 C 50-100 1 O1
1 MHz 1-5 A 50-150 1 M
5-10 A 75-100 2 M1
10-12 A 100 3 N
1-5 B 50-150 1 N
5-8 B 75-100 2 N1
1-5 C 50-100 3 O
Center Freq.(Fo)

Q
Range
Fo /
3dB BW

Shape Factor Imp.
Range (Ohms)
Insertion Loss (dB)
Typical

Size

Epoxy Metal
2.5 MHz 1-5 A 50-150 1 M
5-10 A 50-75 2 M1
10-12 A 75 3 N
1-5 B 50-150 1 N
5-8 B 50-75 2 N1
1-5 C 50-100 3 O
5 MHz 1-5 A 50-100 1 M
5-10 A 50-75 2 N
10-15 A 75 3 O
1-5 B 50-75 1 N1
5-10 B 50-75 2 O
1-5 C 50-75 3 P
7.5 MHz 1-5 A 50-75 1 M
5-10 A 50-75 2 N
10-15 A 75 3 O
1-5 B 50-75 1 N1
5-10 B 75 2 O
1-5 C 50-75 3 P
10MHz 1-5 A 50-75 1 M
5-10 A 50-75 2 N
10-15 A 50-75 3 N
1-5 B 50-75 1 O
5-10 B 50-75 2 O
10-12 B 50-75 3 P
1-5 C 50-75 1 P
15MHz 1-5 A 50-75 1 N
5-10 A 50 2 N
1-5 B 50-75 1 O
5-8 B 50 2 O
1-4 C 50 1 P
20MHz 1-5 A 50 1 N
5-8 A 50 2 O
1-5 B 50 1 P
5-8 B 50 2 P
25MHz 1-5 A 50 1 M
5-8 A 50 2 N
1-5 B 50 1 O
50MHz 1-5 A 50 1 K3
5-8 A 50 2 N
1-5 B 50 2 O
75MHz 1-5 A 50 1 K3
5-8 A 50 2 M
1-5 B 50 2 N
100MHz 1-5 A 50 1 K3
1-5 B 50 2 M
125MHz 1-5 A 50 1 K3
1-4 B 50 2 M
150MHz 1-5 A 50 1 K3
1-3 B 50 2 M

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Allen Avionics, Inc.
2727 Clinton Street
River Grove, IL  60171
Phone: (708)-453-3238
Fax: (708)-453-0297
E-Mail: Sales@AllenAvionics.com

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