A fundamental principle of ESD control is to ground conductors, including people at ESD protected workstations. Wrist straps are the first line of defense against ESD - they are:
- the most common personnel grounding device used and
- required to be used if the operator is sitting.
Dual-wire wrist straps offer a reduced risk of damaging ESD sensitive devices in critical applications. For maximum benefits use dual-wire wrist straps together with dual-wire continuous monitors. Advantages of using dual-wire wrist straps:
1. Eliminate intermittent failures
2. Extend lifespan of wrist strap
An important feature of dual-wire wrist straps is that even if one conductor is severed, the operator has reliable path-to-ground with the other wire. The continuous monitor used with the wrist strap will alarm. However, the operator will still be grounded by the other wire. So there is a significantly reduced risk of damaging the product if the operator happens to be handling an ESD sensitive component when the wrist strap fails.
Vermason MagSnap 360™ Dual-Wire Wrist Straps
have a magnetic connection between the wrist band and coiled cord (must be with a a MagSnap 360™ band). This creates a superior electrical connection and eliminates intermittent failures that can occur in traditional snap connections that use springs. The magnetic connection extends the lifespan of the wrist strap and maintains a 1-5 pound perpendicular breakaway force to prevent accidental disconnects. The dual-wire coiled cord used with the wristband creates a path-to-ground for the operator with a resistance of <3.5 x 107
ohms. If one conductor is damaged, the operator will maintain the path-to-ground through the other conductor. The 3.5mm right angle mono plug connector Works with standard dual-wire monitors and grounding jacks. Watch our video animation of the Vermason MagSnap 360™ Dual-Wire Wrist Strap here
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