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EMI/RFI Filter and Capacitor Performance Testing

The resin sealed and hermetically sealed filters shown in this table 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.

The information shown can be used as a basis for filter specifications.  Contact us directly for additional details if necessary.

Test Group Order of Test Examination or Test Test Method Post Test Requirement
I *1 Visual and Mechanical Examination   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 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-PRF-15733, paragraph 4.6.8 Per applicable requirements
*9 Insertion Loss MIL-STD-220, 3pc, sample only Per applicable requirements
II 1 Temperature Rise MIL-PRF-15733, paragraph 4.6.4 Per applicable requirements
2 Overload MIL-PRF-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 megohms or 50 ohm farads, whichever is less
5 Vibration Method 204⁺, Test Condition B for glass seal, Condition D for resin seal 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
III 1 Terminal Strength Method 211⁺, Test Condition A, 5 lbs. No evidence of loosening or rupturing of teminal
2 Resistance to Soldering Heat Method 210⁺, Test Condition B, depth of immersion 1/16, ±1/32 Insulation resistnace greater than 500 megohms or 50 ohm farads, whichever is less
3 Thermal Shock Method 107⁺, Test Condition A, -55 to +125˚C Insulation resistnace greater than 500 megohms or 50 ohm farads, whichever is less
4 Immersion Cycling Method 104⁺, Test Condition A Insulation resistnace greater than 500 megohms or 50 ohm farads, whichever is less
IV 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 from MIL-STD-202

Standard Metric Conversion Tables

To convert inches to mm, multipy inches by 25.4

To convert mm to inches, multipy mm by 0.039370

Class B Reliability Levels is outlined in MIL-PRF-28861 and isprescribed for most military/aerospace requirements. It is more stringent than MIL-PRF-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.

Inspection

Class B

“R” level testing

Group I

“R” level screening is performed by APITech'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)

٠Thermal Shock: 5 cycles from -55°C to +125°C in accordance with MIL-STD-202, Method 107D, Condition A.

٠Burn-in: 100 hours at 1.4x rated DC voltage, 125°C.

٠Seal Test: MIL-STD-202, Method 112, Test Condition A. Hermetic sealed parts only.

٠Capacitance and Dissipation Factor: MIL-STD-202, Method 305, frequency 1kHz.

٠Dielectric Withstanding Voltage: 2.5 times the rated DC voltage for 5 ±1 second at 25°C, with 50 mA maximum charging current.

٠Insulation 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.

٠DC Resistance: MIL-STD-202, Method 303.

٠Insertion Loss Test: Sample per MIL-PRF-15733. At full rated load in accordance with MIL-STD-220. The minimum insertion loss shall be defined in the filter catalog.

٠Visual and Mechanical: In accordance with MIL-PRF-15733.

٠Marking: 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 9051-100-0000 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) 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
Thermal shock and immersion X

Group II

Subgroup 1
Life X
Subgroup 2
Resistance to soldering heat X
Salt spray (corrosion) X
Radiographic inspection X
Subgroup 3
Resistance to solvents X
 
Shock (specified pulse) X
Vibration (high frequency) X
Moisture resistance X
Seal (when applicable) X
Radiographic inspection X