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Quality Assurance

NAI is committed to quality and excellence in all we do. Our in-house, certified QCI trainer ensures that all company assemblers and testers are trained and certified to IPC-A-610 standards. Our in-house, Automated Test Equipment (ATE) reduces delivery time to the customer and ensures every product is tested to the same rigorous standards throughout the production cycle.

Testing Capabilities

Our on-site testing capabilities encompass every facet, from design verification, product qualification, and environmental (EMI, Temperature and Vibration), to final production testing. Testing is automated to the fullest extent when possible to ensure consistent, repetitive, and accurate results.

Design Verification Testing

Once new products are released from engineering, the design verification test team performs a rigorous series of tests. These include electrical performance verification testing to design specifications, as well as environmental and qualification testing.

Engineering Test
Environmental Stress Screening (Temperature)

NAI has temperature Environmental Stress Screening (ESS) capabilities on-site. Temperature ESS capabilities range from card level, small footprint NIU units and power supplies to large, ruggedized embedded systems. Design verification testing includes temperature cycling from -40° C to +85° C and electrical performance testing at the extremes. All conduction-cooled products are tested to specified temperature ranges and receive optional temperature cycling from -40° C to +85° C on customer specified production deliveries.

Temperature Stress Chamber
Environmental Stress Screening (Vibration)

NAI has vibration ESS capabilities on-site. Vibration screening can be performed on all three axes. Units can be instrumented and monitored during testing with data capture or can be run passively with no power. All vibration test systems are computer-controlled and can be programmed to simulate a multitude of vibration scenarios designed to meet the customers’ requirements.

Vibration Stress Machine
Qualification Testing

NAI has significant environmental and EMI qualification capabilities on-site, including temperature, vibration (sine & random), shock, humidity, and conducted emissions. As required, NAI supplements these capabilities with the use of local test laboratories for specialized testing, such as altitude, temperature-altitude, contaminant protection, explosive atmosphere, MIL-STD-461 EMI, and lightning testing.

EMI Testing Station
Final Production Testing

NAI has a diversified mix of products, from low-volume/high-mix to high-volume production runs, that utilize internally designed multi-unit gang testers. We have developed an automated test software suite which is at the heart of our testing systems. This suite is uniquely designed to test the complexity of our highly configurable products. NAI is consistently improving its test capabilities to maximize throughput without sacrificing either test coverage or product quality.

Final Test Process

Utilizing best-in-class design, manufacturing, and test methodologies to develop products that achieve the highest levels of efficiency, power and performance that can operate effectively in harsh, rugged environments; sustain extreme temperature changes; and withstand vibration, shock, and corrosive conditions. Our design tools include thermal and structural analysis and advanced simulation software. Rugged environmental standards include MIL-STD-810 & VITA 47.

In house environmental and EMI ruggedization qualification capabilities include temperature, vibration (sine & random), shock, humidity, and conducted emissions. As required, NAI supplements these capabilities through the use of local test laboratories. Our products are ruggedized and tested to ensure they operate in harsh environments. Tests include altitude, temperature-altitude, contaminate protection, explosive atmosphere, MIL-STD-461 EMI testing, and lightning testing.

The following tables outline the general Environmental Specifications design guidelines for both board level and power products of North Atlantic Industries.

Ruggedization Parameters for our Board Level Products

All of our cPCI, VME and OpenVPX boards are designed for either air or conduction cooling. All boards also incorporate appropriate stiffening to ensure performance during shock and vibration and to assure reliable operation (lower fatigue stresses) over the service life of the product.

1 / Commercial-AC
2 / Rugged-AC
3 / Rugged-CC
Temperature - Operating 0ºC to +70ºC, Ambient H -40ºC to +85ºC, Ambient I -40ºC to +85ºC, at wedgelock thermal interace
Temperature - Storage -40ºC to 85ºC -55ºC to 105ºC -55ºC to 105ºC
Humidity - Operating 0 to 95%, non-condensing 0 to 95%, non-condensing 0 to 95%, non-condensing
Humidity - Storage 0 to 95%, non-condensing 0 to 95%, non-condensing 0 to 95%, non-condensing
Vibration - Sine A 2 g peak, 15 Hz - 2 kHz B 6 g peak, 15 Hz - 2 kHz B 10 g peak, 15 Hz - 2 kHz C
Vibration - Random D 0.002 g2/Hz, 15 Hz - 2kHz 0.04 g2/Hz, 15 Hz - 2 kHz 0.1 g2/Hz, 15 Hz - 2kHz E
Shock F 20 g peak, half-sine, 11 ms 30 g peak, half-sine, 11 ms 40 g peak, half-sine, 11 ms
Low Pressure G Up to 15,000 ft. Up to 50,000 ft. Up to 50,000 ft.

Specifications subject to change without notice.


A. Based on a sweep duration of ten minutes per axis, each of the three mutually perpendicular axes.

B. Displacement limited to 0.10 D.A. from 15 to 44 Hz.

C. Displacement limited to 0.436 D.A. from 15 to 21 Hz.

D. 60 minutes per axis each of the three mutually perpendicular axes.

E. Per MIL-STD-810G, Method 5.14.6 Procedure I, Fig.514.6C-6 Category 7 tailored (11.65 Grms): 15 Hz – 2 kHz; ASD (PSD) at 0.04 g2/Hz between 15 Hz - 150 Hz, increasing at 4 dB/octave from 0.04 g2/Hz to 0.1 g2/Hz between 150 Hz – 300 Hz, 0.1 g2/Hz between 300 Hz - 1000 Hz, decreasing at 6 dB/octave from 0.1 g2/Hz to 0.025 g2/Hz between 1000 Hz – 2000 Hz.

F. Three hits per direction per axis (total of 18 hits).

G. For altitudes higher than 50,000 ft. contact NAI.

H. High temperature operation requires 350 lfm minimum air flow across cover/heatsink (module dependent).

I. High temperature operation requires 600 lfm minimum air flow across cover/heatsink (module dependent).

Ruggedization Parameters for our Power Products

Our Rugged Power Supply products are designed to meet the parameters shown below.

Parameters Level
Temperature - Operating -40º C to 85º C at 100% load (temperature measured at card edge, conduction via card edge)
Temperature - Storage -55º C to +105º C (per VITA 47 CC4)
Humidity 95% at 71º C per MIL-STD-810G, Method 507.5 (non-condensing)
Vibration Per MIL-STD-810, Method 514, Procedure 1: Per VITA 47, Class V3
Shock 30 g's each axis per MIL-STD-810G, Method 516.6, Procedure 1; Hammer shock per MIL-STD-901; 1/2 sine wave per VITA 47 OS2
Altitude 1,500 feet Below Sea Level to 60,000 feet Above Sea Level per VITA 47
ESD 15 kV EN61000-4-2 per VITA 47