ELCO Varicon

Varicon ®IntroductionCONTACT MATERIALThe primary contact material used is phosphor bronze. Theelectrical conductivity of copper alloys are extremely good.Within the Varicon concept, the contacts must also performas springs and these alloys offer the elastic properties andthe endurance required by today’s rugged applications.CONTACT PLATINGA nickel underplate of 50 to 100 microinches, followed by aminimum of 10 microinches of gold plate is Elco’s standardcontact plating. The gold plate prevents the formation ofinsulating oxide films while the nickel plate provides a hardbacking. It, in turn, reduces wear on the gold and preventsdiffusion between the gold and base metal. Other platingthicknesses, such as those required by military specifications,can be supplied on request.VARILOK CRIMP-AND-INSERTCONTACTSThe crimp-termination, insertable / removable Varilok contactoffers a solderless connection between wire and contact aswell as strain relief for the wire. This contact snaps into theinsulator quickly and easily. With our simple tool it can beremoved without difficulty, yet it locks securely into place andcannot twist or bend out of alignment.Loose Varilok ContactsReel-Mounted Varilok ContactsVarilok contacts also are available with wire-wrappable, solderand taper-tab tail configurations. Available loose for smallscale production and replacement purposes, the Varilokcontact is also supplied on reels for use with fast, economicalautomatic crimping machines reducing man-hourrequirements and production costs in medium and largescaleproduction runs. Because the contact can be crimpedto the wire and installed into the insulator at any point duringthe manufacturing operation, it offers the user convenienceand flexibility. Reels contain 1800 standard contacts or 3000miniature contacts.4 ELCO