Burn In - Scenario 2

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Testing For: 
  • Fixed ground equipment
  • Mobile ground vehicle equipment
  • Shipboard equipment
    • *Sheltered
    • *Exposed
  • Jet aircraft equipment
  • Turbo-propeller and rotary-wing aircraft equipment
  • Air launched weapons
  • The tailoring process described in this standard (i.e., systematically considering detrimental effects that various environmental factors may have on a specific materiel system throughout its service life) applies throughout the materiel acquisition cycle to all materiel developed for military or commercial applications, including foreign and non-development item (NDI) procurements, procurements, or modifications of Allied systems or materiel, and cooperative development opportunities with one or more Allied nations to meet user and interoperability needs (DoDD 5000.1).
    • *Note that this spec. is being revised specifically for HALT and HASS
Standard: 
  • Institute
    Guide for Defining and Performing Highly Accelerated Tests
    SAE/USCAR-2 Revision 5 Revised 2007-11
  • PERFORMANCE SPECIFICATION FOR AUTOMOTIVE ELECTRICAL CONNECTOR SYSTEMS

  • J2464
  • UL 2054
  • UL 1642
Failure Type : 
F(t) = failures accelerated by High Temperature Dwells (chemical type failures)
Stressor: 
High temperature Burn-in
Typical Failures Detected: 
  • Changes in component and unit dimensions
  • Stray capacitances.
  • Differing expansion of materials
  • Noise floor can shift, supplies drift, causing signal levels and timing to shift
  • Pushes software timing to limits.
  • Thermal compensation algorithms pushed to limits.
  • Components that are wrong value - may work at ambient, but pushing temperature forces malfunction.
  • Manufacturing errors that push tolerance stack up to one side or the other. Components that don’t meet spec value or dynamic range
  • Solder creep
Qualmark Accelerated Reliability System: 
+200°C
Testing Scenario Type: 
Burn In

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