DIN 41612 C/2 Receptacle for Backplane and Card-Cage Systems
The TE 8-1393640-5 is a 48-position DIN 41612 receptacle from the Eurocard series, built for the C/2 (1/2 C) form factor. This style is common in industrial backplanes and card-cage systems where a full C-form connector is over-specified, and the outer two rows of the three-row grid provide the signal count without the centre row. Gold or gold-palladium contact finish is specified, which supports the repeated mating cycles typical of field-serviceable Eurocard subracks.
What the C/2 Style Means for Your Backplane Slot
The C/2 (1/2 C) designation means this receptacle occupies the outer two rows (rows a and c) of a three-row DIN 41612 C-form connector. The centre row (row b) is omitted, so the connector body is the same width as a full C-form, but only 48 of the 96 possible positions are populated. This is a deliberate choice for applications that need the mechanical keying and polarisation of the C-form shell but only half the signal count. The mating half must also be a C/2 style header — a full C-form header with all three rows populated will leave the centre row pins unconnected, but the mechanical fit is identical.
Temperature Range and Flammability for Enclosed Equipment
The connector is ROHS3 compliant, meeting the current EU restriction on hazardous substances.