Capacitor Reliability Testing

Typical Compex commercial testing includes 100% visual, capacitance, dissipation factor, insulation resistance, and dielectric withstanding voltage. In addition, our parts exceed MIL-STD-883 requirements for bond and shear strength (Methods 2011 and 2019, respectively). Further screening per military performance specifications is available to meet the most stringent customer specification. The tables below outline the specific testing performed in accordance with MIL-PRF-38534 and MIL-PRF-49464, and identify the appropriate Compex test code. The test code, if required, will be added to the Compex PN. Please consult the factory for your exact testing requirements.

Voltage Rating:

Test Code Testing Performed
T100 Class H Element Evaluation per MIL-PRF-38534
  100% Capacitance Subgroup 1
  100% Visual inspection Subgroup 2
  Visual Inspection Element Electrical**

Subgroup 3*

  Wire Bond Evaluation Subgroup 4
Test Code Testing Performed
T200 Class K Element Evaluation per MIL-PRF-38534
  100% Capacitance Subgroup 1
  100% Visual inspection Subgroup 2
  Temperature Cycle
Constant Acceleration
Voltage Conditioning
Visual Inspection
Element Electrical**

Subgroup 3*

  Wire Bond Evaluation Subgroup 4
Test Code Testing Performed
T300 Group A Inspection per MIL-PRF-49464
  Thermal Shock
Voltage Conditioning
100% Capacitance
100% Dissipation factor
100% Insulation Resistance
100% Dielectric Withstanding Voltage
Subgroup 1
  Physical Dimensions Workmanship Subgroup 2
  Bond Strength
Die Shear Strength

Subgroup 3

  Temperature Coefficient Limits Subgroup 4
Test Code Testing Performed
T400 Group B Inspection per MIL-PRF-49464
  Group A Inspection
Temperature
Immersion
Subgroup 1
  Low Voltage Humidity Subgroup 2
  Life

Subgroup 3

*Test samples taken from parts passing Subgroups 1 & 2.
**Element Electrical testing includes Capacitance, Dissipation Factor, Insulation Resistance, and Dielectric Withstanding Voltage.
MIL-STD-883: Test Method Standard, Microcircuits
MIL-PRF-38534:
Performance Specification, General Specification for Hybrid Microcircuits
MIL-PRF-49464: Performance Specification, General Specification Capacitors, Chip, Single Layer, Fixed, Parallel Plate, Ceramic Dielectric, Established Reliability