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Spectrum Control offers a premium line of custom and specialty filtered connectors. These custom high reliability, circular connectors have a reputation for superior quality and performance. Several types of filtering are available (See figure below).
EMI Filter Performance
The performance indicated in this table are examples for design guidelines. Insertion values are per MIL-STD-220 (No Load).
Resistance
| Insulation Reistance |
.............5 Gigohm min. |
| D.C. Resistance...... |
..........30 Milliohm max. |
Electrical Characteristics with C Filter
Electrical Characteristics with CL Filter
Electrical Characteristics with LC Filter
Electrical Characteristics with Pi Filter
Cap.
(pF, GMV) |
Working
Voltage |
DMV
(VOC) |
Minimum Insertion Loss (dB) |
DC
85°C |
AC
85°C |
Cut-Off
Freq. (MHz) |
1
MHz |
10
MHz |
100
MHz |
500
MHz |
1,000
MHz |
| 1,000 |
200 |
115 |
500 |
5 |
- |
4 |
21 |
34 |
39 |
| 2,000 |
200 |
115 |
500 |
1 |
- |
9 |
26 |
39 |
44 |
| 3,000 |
200 |
115 |
500 |
1 |
- |
12 |
30 |
43 |
48 |
| 5,000 |
200 |
115 |
500 |
1 |
1 |
16 |
34 |
46 |
52 |
| 7,000 |
200 |
115 |
500 |
1 |
3 |
19 |
37 |
49 |
55 |
| 10,000 |
200 |
115 |
500 |
1 |
4 |
21 |
39 |
52 |
57 |
| 20,000 |
100 |
— |
250 |
.50 |
9 |
26 |
44 |
57 |
62 |
Cap.
(pF, GMV) |
Working
Voltage |
DMV
(VOC) |
Minimum Insertion Loss (dB) |
DC
85°C |
AC
85°C |
Cut-Off
Freq. (MHz) |
1
MHz |
10
MHz |
100
MHz |
500
MHz |
1,000
MHz |
| 1,000 |
200 |
115 |
500 |
5 |
- |
5 |
23 |
36 |
42 |
| 2,000 |
200 |
115 |
500 |
1 |
- |
10 |
29 |
42 |
47 |
| 3,000 |
200 |
115 |
500 |
1 |
- |
13 |
36 |
45 |
51 |
| 5,000 |
200 |
115 |
500 |
1 |
1 |
17 |
37 |
49 |
54 |
| 7,000 |
200 |
115 |
500 |
1 |
3 |
20 |
39 |
52 |
57 |
| 10,000 |
200 |
115 |
500 |
1 |
4 |
22 |
41 |
54 |
60 |
| 20,000 |
100 |
— |
250 |
.50 |
9 |
28 |
47 |
60 |
65 |
Cap.
(pF, GMV) |
Working
Voltage |
DMV
(VOC) |
Minimum Insertion Loss (dB) |
DC
85°C |
AC
85°C |
Cut-Off
Freq. (MHz) |
1
MHz |
10
MHz |
100
MHz |
500
MHz |
1,000
MHz |
| 1,000 |
200 |
115 |
500 |
5 |
- |
5 |
23 |
36 |
42 |
| 2,000 |
200 |
115 |
500 |
1 |
- |
10 |
29 |
42 |
47 |
| 3,000 |
200 |
115 |
500 |
1 |
- |
13 |
36 |
45 |
51 |
| 5,000 |
200 |
115 |
500 |
1 |
1 |
17 |
37 |
49 |
54 |
| 7,000 |
200 |
115 |
500 |
1 |
3 |
20 |
39 |
52 |
57 |
| 10,000 |
200 |
115 |
500 |
1 |
4 |
22 |
41 |
54 |
60 |
| 20,000 |
100 |
— |
250 |
.50 |
9 |
28 |
47 |
60 |
65 |
Cap.
(pF, GMV) |
Working
Voltage |
DMV
(VOC) |
Minimum Insertion Loss (dB) |
DC
85°C |
AC
85°C |
Cut-Off
Freq. (MHz) |
1
MHz |
10
MHz |
100
MHz |
500
MHz |
1,000
MHz |
| 1,000 |
200 |
115 |
500 |
5 |
- |
4 |
28 |
54 |
65 |
| 2,000 |
200 |
115 |
500 |
1 |
- |
8 |
39 |
65 |
70 |
| 3,000 |
200 |
115 |
500 |
1 |
- |
11 |
47 |
70 |
70 |
| 5,000 |
200 |
115 |
500 |
1 |
1 |
14 |
54 |
70 |
70 |
| 7,000 |
200 |
115 |
500 |
1 |
3 |
18 |
60 |
70 |
70 |
| 10,000 |
200 |
115 |
500 |
1 |
4 |
22 |
64 |
70 |
70 |
| 20,000 |
100 |
— |
250 |
.50 |
9 |
33 |
70 |
70 |
70 |
| Click on Filter to update Minimum Insertion Loss. |
C Filter
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Pi Filter
|
LC Filter
|
CL Filter
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Quality Acceptance Test Specifications
All filtered connectors undergo extensive testing to assure that all product meets our high quality expectations. Many of the tests are performed 100% as routine and others are carried out on a sample basis when this is deemed more meaningful.
Visual
The connectors shall be manufactured and processed in a careful and workmanlike manner in accordance with good design and sound practice.
Capacitance
Checked on 100% of the contacts per detailed specifications when measured @ 25°C, 1 KHz, 0.1 to 1.0VRMS. On insulated feed-thru lines, the maximum capacitance is 25 pF.
Dissipation factor
4% maximum, checked 100% @ 25°C, 1KHz, 0.1 to 1.0VRMS
Dielectric withstanding voltage
Performed on 100% of the filtered contacts. The test voltage unless otherwise specified will be 2.5 times the working voltage as specified at 25°C. This voltage will be applied for 1 to 5 seconds with the charging current limited to 50 milliamps.
Insulation resistance
Performed on 100% of the filtered contacts at 25°C. The minimum acceptance level will be 1000 megohms at 25°C and 100 megohms at 125°C if required. This test will be carried out in accordance with MIL-STD-202 Method 302, test voltage of 100VDC or at rated voltage whichever is less.
Insertion loss
Performed on a sample quantity of filtered contacts, minimum acceptance levels as specified by typical insertion loss graphs.
Resistance to ground
The DCR on ground lines is 5 milliohms max.
Marking
As a minimum, all connectors shall have the Spectrum part number & date code. Upon request, customer specified marking can be incorporated into the manufacturing cycle.
Special Testing
Spectrum has a fully qualified test laboratory and is willing to provide additional acceptance testing upon customers request, at minimal additional costs.
Minimum Design Specifications
All of the filtered connectors are designed to meet minimum standards shown in table below.
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Spectrum Control, Inc.