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DIN 41612: Wikis


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A NuBus graphics gard with a male 3×32 DIN 41612 connector (white, foreground left).
VMEbus crate. 3×32 DIN 41612 female connectors can be seen on the green motherboards in back.
A NuBus motherboard, with six female 3×32 DIN 41612 connectors (black, centre left).

DIN 41612 is a DIN standard for electrical connectors that are widely used in rack based electrical systems. Standardisation of the connectors is a pre-requisite for open systems, where users expect components from different suppliers to operate together. The mostly widely known use of DIN 41612 connectors is in the VMEbus system. They were also used by NuBus. The standard has subsequently been updated as international standards IEC 60603-2 and EN 60603-2.

Mechanical details

The standard describes connectors which may have one, two or three rows of contacts, which are labelled as rows a, b and c. Two row connectors may use rows a+b or rows a+c. The connectors may have 16 or 32 columns, which means that the possible permutations allow 16, 32, 48, 64 or 96 contacts. The rows and columns are on a 0.1 inch (2.54 mm) grid pitch. Insertion and removal force are controlled, and three durability grades are available.

Electrical details

The headline performance of the connectors is a 2 amp per pin current carrying capacity, and 500 volt working voltage. Both these figures may need to be de-rated according to safety requirements or environmental conditions.

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