Custom Built LC Filters - Bandpass 7.5 MHz to 200 MHz
bp7M-200MPrinter

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: 7.5 MHz to 200 MHz

  • Impedance Range: 50 Ohms to 100 Ohms

  • Q Range: .5 to 50

  • Construction: 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 7.5 MHz to 200 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
P1 6.00 x 2.000 x 1.250

 Fo = √F1F2  = √F3F4  = √F5F6

 

Custom Bandpass Filters - Series BP
1dB Maximum Ripple
Center
Frequency (Fo)

Q
Range
Fo /
3dB BW

 Shape Factor

Impedance Range (Ohms)

Insertion Loss (dB)

Metal
Can
Size
7.5MHz 35-50 AO 50 10 Max. N, O
.5-10 A 50-100 1-4 K3, M, N
10-25 A 50 2-5 M, N, O
25-35 A 50 3-8 M, N, O
.5-10 A1 50-100 1-4 K3, M, N
10-25 A1 50 2-5 M, N, 0
25-35 A1 50 3-8 M, N, O
.5-10 B 50-75 3-5 M, N, O
10-15 B 50 3-6 N, O, P
.5-10 B1 50 2-5 M, N, O
10-12 B1 50 3-6 O, P, P1
.5-5 C 50-75 2-5 M, N, O
5-10 C 50 3-6 N, 0, P
.5-5 D 50 3-7 P, P1
.5-3 E 50 3-7 P, P1
10MHz 35-50 AO 50 10 Max. N, O
.5-10 A 50-75 1-4 M, N, O
10-25 A 50 2-5 M, N, O
25-35 A 50 3-8 M, N, O
.5-10 A1 50-75 1-4 N, 0, P
10-25 A1 50 2-5 N, O, P
25-35 A1 50 3-8 N, O, P
.5-10 B 50 2-5 N, O, P
10-25 B 50 3-8 O, P, P1
.5-10 B1 50 2-5 O, P, P1
10-20 B1 50 3-8 O, P, P1
.5-10 C 50 2-5 O, P, P1
10-15 C 50 3-8 P, P1
.5-10 D 50 3-7 P, P1
.5-6 E 50 3-7 P, P1
15MHz 35-50 AO 50 10 Max. N, O
.5-10 A 50 1-4 M, N, O
10-25 A 50 2-5 M, N, 0
25-35 A 50 3-8 M, N, 0
.5-10 A1 50 1-4 M, N, O
10-25 A1 50 2-5 N, 0, P
25-35 A1 50 3-8 N, O, P
.5-10 B 50 2-5 N, O, P
10-20 B 50 3-6 N, O, P
.5-10 B1 50 2-5 N, O, P
10-15 B1 50 3-7 O, P, P1
.5-10 C 50 2-5 P, P1
.5-8 D 50 3-7 P P1
.5-5 E 50 3-7 P, P1
1dB Maximum Ripple
Center
Frequency (Fo)

Q Range
Fo /
3dB BW

 Shape Factor

Impedance Range (Ohms)

Insertion Loss (dB)

Metal
Can
Size
80MHz 25-50 AO 50 10 Max. N, O
.5-10 A 50 1-4 M, N, O
10-25 A 50 3-8 N, 0, P
.5-10 A1 50 1-4 N, 0, P
10-15 A1 50 3-8 N, O, P
.5-10 B 50 2-5 N, O, P
10-15 B 50 3-8 0, P, P1
.5-12 B1 50 2-5 0, P, P1
.5-5 C 50 2-5 P, P1
.5-3 D 50 3-7 P, P1
90MHz 25-50 AO 50 10 Max. N, O
.5-10 A 50 1-4 M, N, O
10-25 A 50 3-8 N, O, P
.5-10 A1 50 1-4 N, O, P
10-15 A1 50 3-8 N, O, P
.5-10 B 50 2-6 O, P, P1
.5-8 B1 50 2-6 O, P, P1
.5-6 C 50 2-6 P, P1
.5-3 D 50 3-7 P, P1
100 MHZ 25-50 AO 50 10 Max. N, 0
.5-10 A 50 1-4 N, O, P
10-15 A 50 2-6 N, 0, P
15-25 A 50 3-8 O, P, P1
.5-10 A1 50 2-6 O, P, P1
10-15 A1 50 3-8 O, P, P1
.5-10 B 50 2-6 O, P, P1
10-12 B 50 3-8 P, P1
.5-10 B1 50 2-6 O, P, P1
.5-8 C 50 2-6 P, P1
.5-3 D 50 3-7 P, P1
.5-3 E 50 3-7 P, P1
110MHz 18-45 AO 50 10 Max. N, O
.5-10 A 50 1-5 M, N, O
10-18 A 50 3-8 N, O, P
.5-10 A1 50 1-5 0, P, P1
10-12 A1 50 3-8 O. R P1
.5-10 B 50 2-6 O. R P1
.5-8 B1 50 ' 2-6 O. R P1
.5-7 C 50 2-6 P. P1
.5-3 D 50 2-6 R P1

Custom Bandpass Filters - Series BP
1dB Maximum Ripple
Center
Frequency (Fo)

Q
Range
Fo /
3dB BW

 Shape Factor

Impedance Range (Ohms)

Insertion Loss (dB)

Metal
Can
Size
20MHz 35-50 AO 50 10 Max. N, 0
.5-10 A 50 1-4 M, N, 0
10-25 A 50 2-5 M, N, 0
25-35 A 50 3-8 M, N, O
.5-10 A1 50 1-4 M, N, O
10-25 A1 50 2-5 N, 0, P
25-35 A1 50 3-8 N, O, P
.5-10 B 50 2-5 N, 0, P
10-20 B 50 3-6 N, O, P
.5-10 B1 50 2-5 N, 0, P
10-15 B1 50 3-6 0, P, P1
.5-12 C 50 2-5 P, P1
.5-8 D 50 3-7 P, P1
.5-5 E 50 3-7 P, P1
25MHz 35-50 AO 50 10 Max. N, 0
.5-10 A 50 2-5 M, N, 0
10-35 A 50 3-8 M, N, O
.5-10 A1 50 2-5 M, N, 0
10-30 A1 50 3-8 N, O, P
.5-10 B 50 2-6 N, O, P
10-20 B 50 3-8 N, O, P
.5-10 B1 50 2-6 N, O, P
10-15 B1 50 3-8 O, P, P1
.5-12 C 50 2-6 P, P1
.5-7 D 50 3-7 P, P1
.5-3 E 50 3-7 P, P1
30MHz 40-50 AO 50 10 Max. N, 0
.5-10 A 50 2-5 M, N, O
10-40 A 50 3-8 M, N, O
.5-10 A1 50 2-5 M, N, 0
10-30 A1 50 3-8 N, 0, P
.5-10 B 50 2-6 N, O, P
10-15 B 50 3-8 N, O, P
.5-10 B1 50 2-6 O, P, P1
10-12 B1 50 3-8 O, P, P1
.5-8 C 50 3-7 P, P1
.5-3 D 50 3-7 P, P1
40MHz .5-10 A 50 2-5 M, N, 0
10-35 A 50 3-8 M, N, 0
.5-10 A1 50 2-5 M, N, 0
10-25 A1 50 3-8 N, 0, P
.5-10 B 50 2-6 N, O, P
10-15 B 50 3-8 N, O, P
.5-10 B1 50 2-6 O, P, P1
10-12 B1 50 3-8 O, P, P1
.5-8 C 50 3-8 P, P1
.5-3 D 50 3-7 P, P1
1dB Maximum Ripple
Center
Frequency (Fo)

Q Range
Fo /
3dB BW

 Shape Factor

Impedance Range (Ohms)

Insertion Loss (dB)

Metal
Can
Size
120MHz 15-40 AO 50 10 Max. N. O
.5-10 A 50 1-5 M. N. 0
10-15 A 50 3-8 N. O, P
.5-10 A1 50 1-5 O. P. P1
.5-8 B 50 2-6 O. P. P1
.5-6 B' 50 2-6 O. P. P1
.5-5 C 50 2-6 P. P1
.5-3 D 50 3-7 R P1
.5-3 E 50 3-7 P. P1
130MHz 12-35 AO 50 10 Max. N. O
.5-10 A 50 1-5 M. N. O
10-12 A 50 3-8 N. O. P
.5-7 A1 50 1-5 O. P. P1
.5-6 B 50 2-6 O. P. P1
.5-5 B1 50 2-6 O. P. P1
.5-4 C 50 2-6 P. P1
.5-3 D 50 3-7 P. P1
.5-3 E 50 3-7 P. P1
140MHz 10-25 AO 50 10 Max. N. O
.5-5 A 50 1-5 M. N. O
5-10 A 50 3-8 M. N. O
.5-5 A1 50 1-4 N. O. P
5-8 A1 50 3-8 O. P. P1
.5-5 B 50 2-7 O. P. P1
.5-4 B1 50 2-7 O. P. P1
.5-4 C 50 2-8 O. P. P1
.5-3 D 50 3-8 P. P1
150MHz 10-20 AO 50 10 Max. N. O
.5-5 A 50 2-6 M, N. O
5-10 A 50 3-8 M. N. O
.5-5 A1 50 2-6 N. O. P
5-8 A1 50 3-8 N. O. P
.5-6 B 50 2-7 N. O. P
.5-5 B1 50 2-7 O. P. P1
.5-4 C 50 2-8 P. P1
.5-3 D 50 3-8 P. P1
.5-3 E 50 3-8 P. P1
160MHz 10-15 AO 50 10 Max. N. O
.5-5 A 50 1-5 M. N. O
5-10 A 50 3-8 M. N. O
.5-5 A1 50 1-4 N. O. P
5-9 A1 50 3-8 O, P. P1
.5-6 B 50 2-7 0. R P1
.5-5 B1 50 2-7 O. P. P1
.5-4 C 50 2-8 O, P. P1
.5-3 E 50 3-8 R P1

 
Custom Bandpass Filters - Series BP
1dB Maximum Ripple
Center
Frequency (Fo)

Q
Range
Fo /
3dB BW

 Shape Factor

Impedance Range (Ohms)

Insertion Loss (dB)

Metal
Can
Size
50MHz 35-50 AO 50 10 Max. N, O
.5-10 A 50 1-4 M, N, O
10-35 A 50 3-8 M, N, O
.5-10 A1 50 1-4 M, N, O
10-25 A1 50 3-8 N, 0, P
.5-10 B 50 2-5 N, O, P
10-20 B 50 3-8 N, O, P
.5-10 B1 50 2-5 O, P, P1
10-15 B1 50 3-8 0. P, P1
.5-10 C 50 3-7 P, PI
.5-3 D 50 3-7 P, P1
60MHz 35-50 AO 50 10 Max. N, O
.5-10 A 50 1-4 M, N, O
10-15 A 50 2-6 N, 0. P
15-35 A 50 3-8 N, 0, P
.5-10 A1 50 1-4 N, O, P
10-15 A1 50 2-6 N, 0, P
15-25 A1 50 3-8 N, 0, P
.5-10 B 50 2-5 O, P, P1
10-20 B 50 3-6 O, P. P1
.5-10 B1 50 2-6 O, P, P1
10-15 B1 50 3-7 O, P, P1
.5-8 C 50 2-7 P, P1
.5-3 D 50 3-7 P, P1
70MHz 35-50 AO 50 10 Max. N, O
.5-10 A 50 1-4 M, N, O
10-35 A 50 3-8 N, 0, P
.5-10 A1 50 1-4 N, 0, P
10-25 A1 50 3-8 N, 0, P
.5-10 B 50 2-5 N, 0, P
10-20 B 50 3-8 O, P, P1
.5-10 B1 50 2-5 O, P, P1
10-15 B1 50 3-8 P, P1
.5-6 C 50 2-5 P, P1
.5-3 D 50 3-7 P, P1
1dB Maximum Ripple
Center
Frequency (Fo)

Q Range
Fo /
3dB BW

 Shape Factor

Impedance Range (Ohms)

Insertion Loss (dB)

Metal
Can
Size
170MHz .5-5 A 50 1-5 M. N. O
5-10 A 50 3-8 M, N, O
.5-5 A1 50 1-4 N. O. P
5-8 A1 50 3-8 O. P. P1
.5-5 B 50 2-7 O. R P1
.5-4 B1 50 2-7 O. R P1
.5-3 C 50 2-8 O. P. P1
180MHz .5-5 A 50 1-5 M. N, O
5-10 A 50 3-8 M. N. O
.5-5 A1 50 1-4 N. 0, P
5-8 A1 50 3-8 O, P. P1
.5-5 B 50 2-7 O, P. P1
.5-4 B1 50 2-7 O. R P1
.5-3 C 50 2-8 O. P. P1
190MHz .5-5 A 50 1-5 M. N. 0
5-10 A 50 3-8 M. N, 0
.5-5 A1 50 1-4 N.O. P
5-7 A1 50 3-8 O. R P1
.5-5 B 50 2-7 0. P. P1
.5-4 B1 50 2-7 0. P. P1
.5-3 C 50 2-8 O, P. P1
200 MHz .5-5 A 50 1-5 M, N, 0
5-10 A 50 30 -o M. N. O
.5-5 A1 50 1-4 N, 0. P
5-6 A1 50 3-8 O. R P1
.5-5 B 50 2-7 O. P, P1
.5-4 B1 50 2-7 O. P. P1
.5-3 C 50 2-8 O. P. P1

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