SOLDERED CONNECTORS
Board-mounted connectors provide an electrical/mechanical solution to the problem of providing reliable input and output of power and signals to the printed wiring assembly (PWA). While the incorporation of connectors into a PWA may increase realiability, bulk and weight concerns, their use facilitates testing and field replacement, without the hardwiring of harnesses and cables to the PWA.
Connectors are considered to be components and the mounting and soldering requirements are identical to those imposed on other through-hole components.
PREFERRED
GENERAL REQUIREMENTS
The connector body shall be parallel to and in full contact with the mounting surface. Standoff steps on all leads shall rest on the lands, and lead protrusion shall meet requirements. Mounting features (i.e.: board lock tabs or fasteners) shall be fully inserted and set.
PREFERRED
KEYING
Connectors should be keyed to prevent incorrect mating/interchanging with similar sized/colored connectors.
Best Workmanship Practice
ACCEPTABLE
ALTERNATIVE MECHANICAL MOUNTING
Connectors not supplied with a locking tab or fastener system shall be secured with staking compound. Staking compound shall not be applied over conductive surfaces.
Best Workmanship Practice
UNACCEPTABLE
MISSING MOUNTING/CONNECTING
HARDWARE
Missing mounting/connecting hardware can interfere with the proper mating of the connector.
Best Workmanship Practice
