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For applications where reliability, but not full military screening is
required, Presidio recommends its high reliability “HR” capacitors. The
“HR” code signifies use of the test program below, or the use of a
customer Source Control Document (SCD) that includes voltage
conditioning.
Quality Assurance Provisions
Every lot undergoes the following inspection and tests:
- Voltage Conditioning: All parts receive a voltage
conditioning at 2X rated voltage and 125°C for a minimum of 8 hours. An
accelerated voltage conditioning, following MIL-PRF-55681 guidelines,
may be used at Presidio’s discretion.
- Capacitance: All parts are tested at 25°C and 1VACRMS in
accordance with Method 305 of MIL-STD-202.
- Dissipation Factor (DF): Shall not exceed 2.5% for BX/X7R
dielectric or 0.15% for BP/COG dielectric, or according to EIA/MIL
standards.
- Dielectric Withstanding Voltage (DWV): All parts are tested
at 2.5X rated voltage in accordance with Method 301 of MIL-STD-202, or
according to EIA/MIL Standards.
- Insulation Resistance (IR @ 25°C): All parts are tested at
25°C and rated voltage in accordance with Method 302 of MIL-STD-202. The
minimum IR required is 100,000 megohms or 1,000 megohm-microfarads.
- Visual: Performed on pieces in accordance with Presidio
internal workmanship criteria.
- Mechanical: Level 1 AQL 1% in accordance with Presidio's
catalog.
- Element Evaluation (optional): A MIL-PRF-38534 Appendix C
Passive Element Class H element evaluation is available where the
customer requires this testing. Element evaluation is not required on
each lot, and must be specified on the purchase order.
Certificate of Compliance:
- A Certificate of Compliance will be sent with each shipment.
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Dimensions
How To Order
Consult factory for other voltages, capacitance options and parts outside a given range.
The above example is of Presidio's Manufacturing part number. If a shorter part number is desired, use our conversion tool to create our Global part number. |