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Spira’s EMI-only Connector-Seal
gaskets are designed to provide an EMI seal in flange-mounted
connectors for the life of a system. These gaskets are extremely
durable, and have achieved up to 1,000 insertions in actual use.
See below for ordering information.
Also note that Spira has a NEW patent-pending EMI & Environmental Connector-Seal gasket.
Application Information
Connector-Seal gaskets are made by attaching a spiral gasket
to a retaining frame. The retaining frame provides a positive
stop and holds the gasket material in place to provide an EMI
seal and prevent deformation of the material.
When choosing a gasket, select an inside diameter that easily
clears the connector barrel. The shielding is achieved by making
contact between the two joint surfaces, not by touching the barrel.
Choose between the SSCG or CS series depending on your application
and desired retaining frame material.
Materials:
SSCG Frame: Chem-film plated aluminum.
SSCG Spiral: Enduro-Shield moderate force tin/lead plated beryllium
copper.
SSCG Core: Cured silicone adhesive. Grommets: Solid silicone
rubber.
CS Frame: Silicone or Fluorosilicone sealing over a stainless
steel frame.
CS Spiral: Spira-Shield standard force tin/lead plated beryllium
copper.
(See Options for RoHS compliance).
Refer to Material
Specifications for more information.
Shielding Quality:
EMI Connector-Seal gaskets offer shielding quality from 116 to
152 dB. The shielding quality may vary depending on your specific
application. Refer to Shielding
Quality for more complete performance data.
Compression Force:
Optimal compression of the gasket is 25% of the diameter of the
spiral. The compression force stated is approximate. When installing
the gasket, care must be taken to clear the mounting pins one
at a time.
SSCG Series: ~10 pounds per linear inch compression force required.
CS Series: ~30 pounds per linear inch compression force required.
Available Options
Plating:
The gasket is electroplated, 90% tin, 10% lead per AMS-P-81728
(edges unplated). Plating options can be specified by adding
a prefix before the part number:
E: Edge tin/lead plating (includes edges) for high humidity or
salt-fog environments
IW: RoHS compliant tin plating (Example: IWSSCG-B-21-O)
EIW: RoHS compliant edge tin plating for high humidity or salt-fog
Refer to Material
Compatibility for more information.
SSCG Core Material:
The SSCG uses a Spira-Seal gasket with a standard core of solid
silicone adhesive.
A special core can be specified by adding an option to the end
of the part number:
-F: Fluorosilicone (Example: SSCG-B-21-O-F)
-O: Silicone that meets outgassing requirements
-Z: Silicone which is a non-acetic acid adhesive
(per MIL-A-46146)
Contact
us for more information.
Frame:
An alternate frame is available including stainless steel sealed
on both sides by silicone or fluorosilicone elastomeric material.
This is still EMI-only protection due to the sizing.
Frame: |
Options |
Tin/Lead
Plated Gasket
|
RoHS
Tin
Plated Gasket |
Edge
Tin/Lead
Plated Gasket |
RoHS
Edge Tin
Plated Gasket |
Chem-Film
Aluminum |
W/
Grommet
No Grommet |
SSCG-B-__-W
SSCG-B-__-O |
IWSSCG-B-__-W
IWSSCG-B-__-O |
ESSCG-B-__-W
ESSCG-B-__-O |
EIWSSCG-B-__-W
EIWSSCG-B-__-O |
Elastomeric
Frame Material |
Silicone
Fluorosilicone |
CS-T-__
/S
CS-T-__ /F |
CS-IW-__
/S
CS-IW-__ /F |
CS-E-__
/S
CS-E-__ /F |
CS-EIW-__
/S
CS-EIW-__ /F |
Specify frame and other options by choosing the desired prefix
from the table.
Example: CS-E-14 /S; EMI Connector-Seal, Edge
tin/lead plated gasket, Silicone frame
Ordering
Information
Connector-Seal gaskets are ordered by the piece.
See our Part
Number Matrix for assistance with part numbers, options and
product comparisons.
|
Dash No. |
For
Use With Connectors |
A |
B |
C |
D |
|
MIL-C-26482, 26500, 83723 Series 1 & 3 NAS 1599
"B" & "T" Size |
MIL-C-38999 |
MIL-C-81703
Size |
1
& 2
Size |
3
& 4
Size |
±.005" |
+.010"
-.005" |
±.020" |
±.005" |
01*
02
03
04*
05
06
07
08*
09
10*
11
12*
13
14
15*
16
17
18
19
20
21
22
23
28
29*
32
33
34
35 |
8
10
12
14
16
18
20
22
24
32
36
|
8
9 & 10
11 & 12
13 & 14
15 & 16
17 & 18
19 & 20
21 & 22
23 & 24
25
|
9
10 & 11
12 & 13
14 & 15
16 & 17
18 & 19
20 & 21
22 & 23
24 & 25
24 & 25
|
3
7
12
19
27
37
61
|
.594"
.625"
.719"
.798"
.812"
.812"
.906"
.928"
.969"
.978"
1.062"
1.140"
1.187"
1.156"
1.238"
1.250"
1.375"
1.392"
1.436"
1.500"
1.568"
1.716"
.753"
1.750"
1.062"
1.938"
1.500"
1.938"
1.750" |
.562"
.623"
.687"
.883"
.812"
.828"
.947"
1.070"
1.063"
1.133"
1.187"
1.325"
1.325"
1.312"
1.508"
1.437"
1.562"
1.633"
1.570"
1.682"
1.830"
2.030"
.771"
2.062"
1.250"
2.186"
1.682"
2.312"
1.846" |
.937"
1.000"
1.062"
1.200"
1.156"
1.200"
1.200"
1.375"
1.375"
1.437"
1.437"
1.625"
1.562"
1.563"
1.825"
1.687"
1.825"
1.937"
1.825"
1.937"
2.250"
2.375"
1.100"
2.312"
1.437"
2.550"
1.830"
2.600"
2.250" |
.125"
.125"
.125"
.125"
.125"
.125"
.125"
.125"
.125"
.125"
.125"
.125"
.125"
.125"
.125"
.125"
.152"
.152"
.125"
.152"
.152"
.173"
.125"
.173"
.125"
.173"
.152"
.173"
.173" |
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