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Construction and Reliability
IndustryPacks were conceived and engineered for rugged industrial environments. The
IP-OCTAL-422 is constructed out of 0.062 inch thick FR4 material. The six copper layers
consist of a ground plane, a power plane and four signal planes.
Surface mounting of components is used extensively. IC sockets for the control PAL and
ID PROM use gold plated screw-machined pins. High insertion and removal forces are
required, which assists in keeping components in place. If the application requires
unusually high reliability or is in an environment subject to high vibration, the user may
solder the four corner pins of each socketed IC into the socket, using a grounded
soldering iron.
The IndustryPack connectors are keyed, shrouded and gold plated on both contacts and
receptacles. They are rated at 1 Amp per pin, 200 insertion cycles minimum. These
connectors make consistent, correct insertion easy and reliable.
The IP is optionally secured to the carrier with four metric M2 stainless steel screws. The
heads of the screws are countersunk into the IP. The four screws provide significant
protection against shock, vibration, and incomplete insertion. For most applications they
are not required.
The IndustryPack provides a low temperature coefficient of 0.89 W/°C for uniform heat.
This is based on the temperature coefficient of the base FR4 material of .31 W/m-°C, and
taking into account the thickness and area of the IP. This coefficient means that if 0.89
Watts is applied uniformly on the component side, that the temperature difference
between the component and the solder side is one degree Celsius.
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