The chart below describes VPT’s environmental screening options for hybrid avionics and military EMI filters and accessories. Environmental Screening for the HB grade is referenced to the MIL-STD-883 test methods applicable for MIL-PRF-38534 Class H devices, per in-house procedures. Custom environmental screening can be performed to meet specialized needs.
Please contact a sales representative concerning different environmental screenings for space or other higher quality applications.
| Screening | MIL-STD-88 | Standard | /ES | /HB |
|---|---|---|---|---|
| PreCap Inspection | Method 2017, 203 |  | |
|
| Temperature Cycling | Method 1010, Condition C Method 1010, 55° C to +125° C | | |
|
| Constant Acceleration | Method 2001, 3000g Method 2001, 500g | | | |
| Burn-In | Method 1015, 160 Hours at 125° C 96 Hours at 125° C 24 Hours at 125° C | | | |
| Hermeticity | Fine Leak, Method 1014,Condition A Gross Leak, Method 1014,ConditionC | | | |
| Final Electrical | MIL-PRF-38534, Group A 100% at 25° C | | | |
| Final Inspection | Method 2009 | | | |
