Performance Testing Guide

EMI/RFI Filter and Capacitor
Performance Testing
The resin sealed and hermetically sealed filters shown in
this section have been designed to meet the requirements
of this test plan as applicable. Group I tests are typically
performed on most product. Groups II, III and IV tests
are performed per specification requirements.
Test
Group
I
II
III
IV
Order
of
Test
*1
Examination
or Test
Visual and Mechanical Examination
The information shown can be used as a basis for
filter specifications. (Contact factory for additional details
if necessary.)
Test Method
Post Test
Requirements
In accordance with applicable requirements.
*2
Materials, Designs, Construction
and Workmanship
*3
Physical Dimensions and Marking
*4
Seal
Method 112†, Condition A
No leaks. Not applicable to resin sealed
or solder-in products.
*5
Capacitance
Method 305†, 1KHz. 2.5 VRMS
Max. 25°C
Within specified tolerance.
*6
Dielectric Withstanding Voltage
Method 301†, 2.5 times, DCWV, 5
seconds, 50 Ma max. charging current
No evidence of damage or breakdown.
*7
Insulation Resistance
Method 302† at DCWV, at 2 minutes
50 ma charging current
Greater than 1000 megohms or 100 ohm
farads, whichever is less.
*8
Voltage Drop
MIL-F-15733, Paragraph 4.6.8
Per applicable requirements.
*9
Insertion Loss
MIL-STD-220, 3pc, sample only
Per applicable requirements.
1
Temperature Rise
MIL-F-15733, Paragraph 4.6.4
Per applicable requirements.
2
Overload
MIL-F-15733, Paragraph 4.6.10
Per applicable requirements.
3
Barometric Pressure
Method 105†, Test Condition B hi-pot,
(per method 301†) at 1.25 times DCWV
No evidence of damage or breakdown.
4
Shock
Method 213†, Test Condition I
No mechanical damage, Insulation resistance
greater than 500 ohm farads, whichever is less.
5
Vibration
Method 204†, Test Condition B for
Glass Seal, Condition D for Resin
No mechanical damage, Insulation resistance
greater than 500 megohms or 50 ohm farads,
whichever is less.
6
Moisture Resistance
Method 106†
Insulation resistance greater than 500
megohms or 50 ohm farads whichever is less.
1
Terminal Strength
Method 211†, Test Condition A, 5 lbs.
No evidence of loosening or rupturing
of terminal.
2
Resistance to Soldering Heat
Method 210†, Test Condition B, Depth
of immersion 1/16 plus or minus 1/32
Insulation resistance greater than 500
megohms or 50 ohm farads whichever is less.
3
Thermal Shock
Method 107† Test Condition A
-55°C to +125°C
Insulation resistance greater than 500
megohms or 50 ohm farads whichever is less.
4
Immersion Cycling
Method 104† Test Condition A
Insulation resistance greater than 500
megohms or 50 ohm farads whichever is less.
1
Solderability (5pcs only)
Method 208†
Per applicable requirements.
2
Life
Method 108†, Test Condition D with
125% rated voltage at maximum
operating temperature
Filters shall meet all initial requirements
except insulation resistance shall not be
less than 50% of initial guaranteed value.
* Acceptance tests typically performed on most products.
†
Methods are from MIL-STD-202
API TECHNOLOGIES • 8061 Avonia Rd. • Fairview, PA 16415 • Ph: 814-474-1571 • Fax: 814-474-3110 • eis.apitech.com
API TECHNOLOGIES’ SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
CF7
EMI/RFI Filter and Capacitor
Performance Testing
Class B
Reliability Levels
Class B is outlined in MIL-F-28861 and is prescribed for
most military/aerospace requirements. It is more stringent
than MIL-F-15733 requiring 100% screening that includes
thermal shock, voltage conditioning and x-ray.
Periodic Group B testing is performed on units selected
at random from production lots.
Class B Test Sequence Summary
Inspection
Group I
Class
B
X
Voltage and temperature limits of capacitance
X
Insertion loss (at temperature)
X
Barometric pressure (reduced)
X
Temperature rise
X
Current overload
X
Terminal strength
X
Group II
X
Subgroup 1
X
Life
Subgroup 2
Resistance to soldering heat
X
Salt spray (corrosion)
X
Radiographic inspection
X
Subgroup 3
Group III
“R” level screening is performed by Spectrum Control’s
Hi-Rel Laboratory as detailed below. Customers requiring
special tests may order to their own specifications or simply
order to level R and then note additions or deviations.
“R” level test sequence
(100% testing unless otherwise specified)
Thermal Shock: 5 cycles from -55°C to +125°C in
accordance with MIL-STD-202, Method 107D,
Condition A.
■ Burn-in: 100 hours at 1.4x rated DC voltage, 125°C.
■ Seal Test: MIL-STD-202, Method 112, Test Condition A.
Hermetic seal parts only.
■ Capacitance and Dissipation Factor: MIL-STD-202,
Method 305, frequency 1kHz.
■ Dielectric Withstanding Voltage: 2.5 times the rated DC
voltage for 5 ± 1 second at 25°C, with 50 mA maximum
charging current.
■ Insulation Resistance: MIL-STD-202, Method 302,
125°C at rated DC voltage and room temperature
(25°C). The 125°C requirement shall be 10% of the
specified catalog IR at 25°C.
■ DC Resistance: MIL-STD-202, Method 303.
■ Insertion Loss Test — Sample per MIL-F-15733.
At full rated load in accordance with MIL-STD-220.
The minimum insertion loss shall be defined in the
filter catalog.
■ Visual and Mechanical: in accordance with MIL-F-15733.
■ Marking: All filters which have successfully completed
the test sequence shall be marked with an “R” in the
second part of the number. For example, a standard
SCI-2130-004 becomes SCI-R2130-004 and 9051-1000000 becomes 9051-R100-0000, and 51-719-011
becomes 51-R719-011 after completion of the Hi-Rel
Level “R” Test Sequence.
■
AC voltage drop (when applicable)
Thermal shock and immersion
“R” level testing
Resistance to solvents
X
Shock (specified pulse)
X
Vibration (high frequency)
X
Moisture resistance
X
Seal (when applicable)
X
Radiographic inspection
X
API TECHNOLOGIES • 8061 Avonia Rd. • Fairview, PA 16415 • Ph: 814-474-1571 • Fax: 814-474-3110 • eis.apitech.com
API TECHNOLOGIES’ SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
CF8