|
June 2, 2009--Positronic's PosiBand closed-entry female contact often used in D-subminiature connectors is designed to overcome weaknesses associated with the "split tine" and sleeve approach. PosiBand separates the mechanical and electrical function of the contact system. The base contact provides a true closed entry feature and enhanced electrical stability, while the spring clip provides more stable mechanical function.
Greater contact interface between male and female contacts is achieved by this design, when compared to the "split tine" design, providing greater resistance to vibration and corrosion.
Contact resistance is 3 milliohms for size 20 contacts and 4 milliohms for size 22 contacts. Current rating for size 20 contacts is 14 amps with 6 contacts energized. Size 22 contact current rating is 10 amps with 6 contacts energized. Both are tested per UL 1977, and the system meets or exceeds performance requirements of SAE AS 39029.
In addition, PosiBand contacts do not require annealing of the crimp barrel, eliminating unintentional annealing of the mating end of the female contact, which can cause intermittent or open electrical circuits.
On the Web: www.connectpositronic.com
