EN IEC 60603-7 pdf free download
EN IEC 60603-7 pdf free download.Connectors for electronic equipment – Part 7: Detail specification for 8-way, unshielded, free and fixed connectors.
Free connectors are intended to be terminated to cable to provide connector and cable assemblies. The connector manufacturer shall provide basic information concerning the type of conductor (stranded, solid) to which the connector may be applied, and the type of connection used (solder, insulation displacement, etc.). Specific details concerning wire gauge size, type and thickness of conductor insulation, size and shape of cordage or cable sheath, etc., are not intended to be part of this detail specification. Minor variations in a free connector’s interior details to accommodate differing wire gauge sizes, outer sheaths, etc., do not require the generation of new free-connector specifications.
5.2 Termination types
5.2.1 Solder terminations
Soldered terminations shall conform to IEC 61760-3.
5.2.2 Solderless terminations
5.2.2.1 Insulation displacement terminations
Insulation displacement terminations shall conform to IEC 60352-3 or IEC 60352-4.
5.2.2.2 Crimp terminations
Crimp terminations shall conform to IEC 60352-2.
5.2.2.3 Insulation piercing terminations
Insulation piercing terminations shall conform to IEC 60352-6.
5.2.2.4 Press-in terminations
The compliant pin shall conform to IEC 60352-5.
5.2.2.5 Spring clamp terminations
Spring clamp terminations shall conform to IEC 60352-7.
5.2.2.6 Other types
In the case where a type of solderless termination is used which is not covered by any IEC standard and the supplier cannot demonstrate a similar level of performance or there is no applicable IEC 60352 standard to be used as a reference, the supplier shall show conformance with the full test schedule in 8.7.3 for all possible variations of termination, for example each cable construction type (screen construction types, wire construction (solid, flexible)) the connector is intended to be used for.
The “Go” gauge in Figure 6 is intended to assess the fixed connector minimum aperture width and height, and shall not be used to assess contact forces. Clearance shall be provided for connector signal contacts. If connector shield contacts are present, either clearance shall be provided for these contacts (as long as the minimum aperture width and height are still assessed) or these contacts, within the connector aperture, shall be removed. The “No-go” gauge is shown in Figure 7 (see also Table 4).
7 Characteristics
7.1 General
Compliance to the test schedules is intended to ensure the reliability of all performance parameters, including transmission parameters, over the range of operating climatic conditions. Stable and compliant contact resistance is a good indication of the stability of transmission performance.
7.2 Pin and pair grouping assignment
For those specifications where pin and pair groupings are relevant, the pin and pair grouping assignments shall be as shown in Figure 10, unless otherwise specified.
7.3 Classification into climatic category
The lowest and highest temperatures and the duration of the damp-heat steady-state test should be selected from the preferred values stated in 2.3 of IEC 61076-1:2006. The connectors are classified into climatic categories in accordance with the general rules given in IEC 60068-1. The temperature range and severity of the damp heat, steady state test given in Table 7 are compatible with ISO/IEC 11 801-1 classification of an office environment.
7.4 Electrical characteristics
7.4.1 Creepage and clearance distances
The permissible operating voltages depend upon the application and also on the specified safety requirements.
Although insulation coordination is not required for these connectors for safety aspects, it is required for electrical functional requirements. In general, for minimum values of creepage and clearance distances, IEC 60664-1 shall apply, based upon the assigned voltage rating 50 V AC and 60 V DC.
NOTE As indicated in IEC 60664-1, IEC TR 63040 provides an alternative and more precise dimensioning procedure for clearances equal to or less than 2 mm.
The creepage and clearance distances that cover performance requirements in IEC 60664-1 may be reduced, based on IEC TR 63040.
The creepage and clearance distances given in Table 8 apply as operating characteristics of mated connectors according to this document.
In practice, reductions in creepage or clearance distances can occur due to the conductive pattern of the printed board or the wiring used, and should in such case duly be taken into account.EN IEC 60603-7 pdf download.
