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Sub-Miniature Bandpass
page LC_F/MB
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  • Small Lightweight Metal Cans 
  • Low Insertion Loss
  • Maximum Ripple Typically less than .5 dB, 1 dB Maximum
  • SMA Connectors  or P.C. Board Mounting Standard
  • Order Any Center Frequency from 10 MHz to 500 MHz
  • Passive LC Filter Design
  • Good Temperature Stability
  • 1 Watt Power Handling Capacity
Custom Sub-Miniature L-C Bandpass Filters - Series MB
All of the filters tabulated on this page are specified as having a minimum band width at the - 3 dB points  and a maximum band width at the -20 dB and -40 dB points. Most of the Bandpass Filters on this page do not exhibit arithmetic or geometric symmetry. However, to insure our customers of a simple method of determining their requirements, we are specifying the -3 dB, -20 dB and -40 dB bandwidths as if all had arithmetic symmetry. This will guarantee at least 1/2 of the 3 dB passband will exist on each side of the center frequency. The -20 dB and -40 dB points will be no greater 1/2 of their respective bandwidth away from their center frequency. 

Size (inches)

  L W H D E
SA .80 x .50 x .50 .30 .60
SB 1.00 x .50 x .50 .30 .80
SB 1.25 x .50 x .50 .30 1.00

 

Mechanical Specifications (click here)

Series MB Performance

Filter Center Frequency (F0)

Can be any 3 digit number from 10 MHz to 500 MHz. "P" represents the decimal point and must be used in the second, third or fourth location. 

3 dB Bandwidth (Fc)=F0/Q

Can be any 3 digit number up to 125 MHz (a center frequency of 500 MHz with a Q of 4.) "P" represent the decimal point and must be used in one of the four locations. The specified bandwidth must be within the limits of the tabulated Q. (See examples below)

shape
factor

see table

S 

for SMA Connectors

for Printed Circuit Board Mounting

 

Example: MB  -   99P5

 4P50

A

S

Example: MB-99P5-4P50-A-S
This part number describes a Bandpass Filter having its center frequency at 99.5 MHz and having a 3 dB bandwidth of 4.50 MHz with a "A" shape factor and SMA Connectors. Note in tabulation below that for a center frequency of 100 MHz, and a shape factor of "A", a Q of up to 30 is realizable.
Example: MB  -  10P0

P200

A

S

Example: MB-10P0-P200-A-S
This part number describes a Bandpass Filter having its center frequency at 10.0 MHz and having a 3 dB bandwidth of .200 MHz with a "A" shape factor and SMA Connectors. Note in tabulation below that for a center frequency of 10 MHz, and a shape factor of "A", a Q of up t0 50 is realizable.

Center Frequency
F0 

Q Range
__F0 __
3
dB BW
Shape Factor Insertion Loss
(dB)
Size
10 MHz 10-25  A 3-8 SA
25-40 A 7-12 SA
40-50 A 9-15 SA
8-20 B 4-9 SB
20-30 B 7-12 SB
30-35 B 9-15 SB
6-15 C 3-7 SB
15-30 C 6-13 SB
4-10 D 2-7 SC
10-15 D 6-12 SC
 25 MHz 10-25  A 3-8 SA
25-40 A 7-12 SA
40-50 A 9-15 SA
8-20 B 4-9 SB
20-30 B 7-12 SB
30-35 B 9-15 SB
6-15 C 3-7 SB
15-30 C 6-13 SB
4-10 D 2-7 SC
10-15 D 6-12 SC
 50 MHz 10-25  A 4-7 SA
25-40 A 7-12 SA
40-45 A 9-15 SA
8-15 B 5-9 SB
15-25 B 7-11 SB
25-30 B 9-15 SB
6-15 C 3-7 SB
15-25 C 6-13 SB
4-10 D 3-8 SC
10-15 D 6-12 SC
 75 MHz 10-20  A 4-8 SA
20-30 A 7-12 SA
30-40 A 9-15 SA
8-12 B 5-9 SB
12-20 B 7-12 SB
20-25 B 9-15 SB
6-15 C 4-7 SB
15-20 C 6-12 SC
4-10 D 3-8 SC
10-15 D 6-12 SC

Center Frequency
F0 

Q Range
__F0 __
3
dB BW
Shape Factor Insertion Loss
(dB)
Size
100 MHz 10-20  A 4-8 SA
20-30 A 7-13 SA
30-35 A 9-15 SA
8-15 B 5-9 SB
15-22 B 8-13 SB
6-10 C 4-6 SB
10-15 C 5-10 SC
4-10 D 4-8 SC
10-15 D 6-12 SC
 150 MHz 10-15  A 4-8 SA
15-25 A 7-13 SA
8-15 B 5-9 SB
15-20 B 8-13 SB
6-10 C 4-6 SB
10-15 C 5-10 SC
4-10 D 4-8 SC
10-15 D 6-12 SC
 200 MHz 10-15  A 4-8 SA
15-20 A 7-12 SA
8-12 B 5-9 SB
12-15 B 8-13 SB
6-10 C 4-6 SB
10-13 C 5-10 SB
4-10 D 4-8 SC
10-13 D 6-12 SC
 250 MHz 10-15  A 4-8 SA
15-20 A 7-12 SA
8-12 B 5-9 SB
12-15 B 8-13 SB
6-10 C 4-6 SB
10-12 C 5-10 SB
4-10 D 4-8 SC
10-12 D 6-12 SC
300 MHz
to
500 MHz
10-15  A 4-8 SA
8-12 B 5-9 SB
12-15 B 8-13 SB
6-10 C 4-6 SB
10-12 C 5-10 SB
4-10 D 4-8 SC
10-12 D 6-12 SC

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

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