EMI/RFI Filter and Capacitor Performance Testing
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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. |
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| 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 | |
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*Acceptance tests typically performed on most products. ⁺ Methods from MIL-STD-202 Standard Metric Conversion TablesTo convert inches to mm, multipy inches by 25.4 To convert mm to inches, multipy mm by 0.039370 |
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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. |
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Inspection |
Class B |
“R” level testing |
Group I |
“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) 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. |
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| 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 |
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Subgroup 1 |
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| Life | X | |
Subgroup 2 |
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| Resistance to soldering heat | X | |
| Salt spray (corrosion) | X | |
| Radiographic inspection | X | |
Subgroup 3 |
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| Resistance to solvents | X | |
| Shock (specified pulse) | X | |
| Vibration (high frequency) | X | |
| Moisture resistance | X | |
| Seal (when applicable) | X | |
| Radiographic inspection | X | |