Presidio Testing Capabilities for
High Reliability "CR" Ceramic Capacitors (Tested similarly to MIL-PRF-55681)
For applications that require a high level of reliability, Presidio recommends its high reliability “CR” capacitors. Tested similarly to MIL-PRF-55681 Group A, Presidio manufactures these chips on the same
manufacturing line as its military product line. They may be used in both military and space applications. Please note these capacitors are NOT MIL-qualified.
Quality Assurance Provisions
Every lot undergoes the following inspection and tests:
Destructive Physical Analysis (DPA): A 32-piece sample is pulled from each lot and examined per relevant sections of EIA 469 and to verify adherence to Presidio’s internal design criteria.
Voltage Conditioning: All parts receive a voltage conditioning at 2X rated voltage and 125°C for 100 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
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.
Percent Defective Allowed (PDA): The cumulative PDA after voltage conditioning is 8%. Pieces rejected as out of tolerance for capacitance or visual screening will be removed from the lot but not counted in the PDA calculation.
Visual: Performed on pieces in accordance with Presidio internal workmanship criteria.
Mechanical: Level 1 AQL 1% in accordance with Presidio's catalog.
Class H 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.
Product will be packaged in individual waffle trays.
Data will be sent with each shipment including:
Destructive Physical Analysis Report (optional): Destructive Physical Analysis (DPA) report and photographs for each lot. Extra charge may apply.
Certificate of Compliance: A Certificate of Compliance will be sent with each shipment.
Class H Element Evaluation: If a Class H element evaluation is required, all variables test data for subgroup 3 tests will be included in the data package.
Example Part Number: CR0805BX103K2P3
The part number can be made by adding "CR" to the beginning of the standard Presidio part number. See guidelines in the Part Number Definitions portion of this website.
Presidio Components, Inc., has been an industry leader in the manufacture of ceramic capacitors since 1980. We provide high quality commercial capacitors, military capacitors, space capacitors, high temperature capacitors, pulse energy capacitors for EFI detonators, microwave capacitors and RF capacitors, as well as custom capacitors. Our custom products include nonstandard part sizes and voltages, including high voltage, high temperature, high "Q", custom leads, cryogenic ceramics, negative and positive temperature characteristic ceramics and piezoelectric formulations. We have a series of patented microwave and radio frequency products including patented single layer and broadband DC blocking caps. Call Presidio at (858) 578-9390.