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Spira’s Shielded Fan Filters provide a high and reliable level of shielding
at very cost effective and competitive prices. They include the “Spira
Advantage”, using our patented honeycomb blending
process and patented spiral Flexi-Shield gasket to provide exceptional EMI
shielding and EM bond. See below
for ordering information. Also see our
Shielded Air Vent Honeycomb Filters.
Filter Sizes
Spira’s Fan Filters
are compatible with 40, 60, 80, 92 and 120mm fans or can be made in custom sizes
on request.
Cell Size:
The filters use 1/8” cell by 1/4” or 1/2” thick
aluminum honeycomb panels.
Frame:
The frame is made from chem-film plated 6061-T4 aluminum.
Spiral Material :
The filters include a Flexi-Shield tin/lead plated beryllium
copper gasket in standard force. RoHS compliant version is
available on request.
Salt-Fog Option:
A salt-fog version is available on request, and includes
our Flexi-Shield edge tin/lead plated beryllium copper gasket.
The honeycomb panel and frame are chem-film plated (or can be
tin plated on request). RoHS compliant version is available on
request.
Shielding Effectiveness:
This graph illustrates that with the “Spira Advantage” our
Fan Filters can provide up to 80dB of shielding at 1GHz!
Ordering
Information
To order, please specify the Spira part number as shown in the
table below, or for custom sizes, please send us a drawing that
specifies the following information:
- Size of filter: length and width
If you require something other than our standard configurations, contact
us with your requirements. RoHS compliant versions are available
on request.
Fan Filter
Part Number |
Fan Size |
A
±.030 |
B
±.010 |
C
±.015 |
D
±.015 |
E
±.010 |
F
±.020 |
G
±.020 |
HF-40mm-25 |
40mm |
1.71 |
1.180 |
1.38 |
.150 |
.265 |
.319 |
.345 |
HF-40mm-50 |
40mm |
1.71 |
1.180 |
1.38 |
.150 |
.265 |
.569 |
.595 |
HF-60mm-25 |
60mm |
2.50 |
1.970 |
2.17 |
.170 |
.265 |
.319 |
.345 |
HF-60mm-50 |
60mm |
2.50 |
1.970 |
2.17 |
.170 |
.265 |
.569 |
.595 |
HF-80mm-25 |
80mm |
3.34 |
2.810 |
3.01 |
.170 |
.265 |
.319 |
.345 |
HF-80mm-50 |
80mm |
3.34 |
2.810 |
3.01 |
.170 |
.265 |
.569 |
.595 |
HF-92mm-25 |
92mm |
3.78 |
3.250 |
3.45 |
.170 |
.265 |
.319 |
.345 |
HF-92mm-50 |
92mm |
3.78 |
3.250 |
3.45 |
.170 |
.265 |
.569 |
.595 |
HF-120mm-25 |
120mm |
4.82 |
4.125 |
4.50 |
.170 |
.348 |
.319 |
.345 |
HF-120mm-50 |
120mm |
4.82 |
4.125 |
4.50 |
.170 |
.348 |
.569 |
.595 |
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