19pin

19pin refers to any connector interface that provides 19 electrical contacts in a single plug and socket pair. It is not a single standardized specification; rather, the term is used across multiple connector families to describe the pin count of the interface. Accordingly, 19pin connectors can come in various form factors, shell sizes, and mating arrangements.

One common family is the D-sub miniature series. A 19-contact variant is commonly known as DE-19, which uses the D-shaped shell and a two-row contact arrangement. The DE-19 is used on a variety of equipment, particularly older industrial and computer interfaces. Pinout schemes are not universal and depend on the specific device and manufacturer; care must be taken when mating or replacing connectors.

Other 19-pin connectors appear in circular DIN-style and proprietary multi-pin formats used in specialized equipment, audio/video gear, and automotive or avionics interfaces. These 19-pin variants share the principle of a keyed shell and multiple contacts but differ in pitch, contact type, and shielding. As with D-sub variants, matching the exact standard is essential for reliable operation.

When sourcing a replacement or making a cable, verify the exact connector family (for example, DE-19 versus a circular DIN 19-pin), gender, shell size, pitch, and any latching or shielding requirements. The lack of a universal 19pin standard means accurate identification is important to ensure compatibility and electrical performance.