What is VITA 47?
ANSI/ VITA 47 is an American National Standard introduced in 2005 that defines rugged environmental, design and construction, safety, and quality requirements for commercial-off-the-shelf (COTS) plug-in units (cards, modules, etc.) intended for mobile applications. This standard is meant to facilitate these modules’ cost-effective integration into larger systems, and to ensure long-term reliability.
Why is VITA 47 Important to Your Applications?
Proven reliability is a must for deployed embedded applications. VITA 47 tests to the following factors, ensuring your hardware works the way you need it to, every time:
- Environmental factors, including:
- Temperature (operating, non-operating and extreme levels of thermal cycling)
- Shock & Vibration (operating and bench handling)
- Humidity, altitude, rapid decompression
- Fungus and corrosion resistance
- Design, construction, safety and quality requirements
VITA 47 is meant to demonstrate not just the short-term thermal capabilities of a module, but to ensure the long-term reliability of all aspects of the design under the harshest of real-world conditions.
The perception that lead-free assemblies aren’t as hardy as tin-lead assemblies has been proven false. Our VITA 47 testing has confirmed that Curtiss-Wright’s lead-free assemblies are as reliable, if not more reliable, than re-balled or traditional tin-lead assemblies.
Setting Reliability Targets:
Without reliability testing, how can you be sure your boards meet or exceed your long-term reliability expectations? VITA 47 testing details pass/fail criteria for various environmental conditions, allowing a common baseline to be set for what reliability parameters should be expected for your rugged, embedded modules.
How is Curtiss-Wright Implementing VITA 47 Standards?
Curtiss-Wright has integrated the VITA 47 standard, including the most stringent level of testing thermal cycling, into our standard reliability testing practices, at no cost to our customers.
Curtiss-Wright’s Temperature testing consists of 500 cycles of -55 to +105°C. Our Shock and Vibration testing, carried out as part of the qualification of every conduction-cooled module, is based on MIL-STD-810 and meets or exceeds the requirements of VITA 47. Compliance to the VITA 47 Shock & Vibration requirement is carried out during standard Curtiss-Wright qualification.
We incorporate the knowledge gained from our VITA 47 testing into the designs of our COTS products, and we continue to cycle released products through the full suite of tests defined by the standard.
As always, Curtiss-Wright stands behind the reliability of our COTS products, and now stands behind full compliance to the VITA 47 standard. VITA 47 testing as a standard practice at CW will give us continual data to enhance our ongoing advancement of reliable ruggedization.
Full test reports are available for select products. Please contact your local sales representative if you are interested in more details.