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100-50 Series | 0.100 [2.54] Centers | .500 [12.70] Full Stroke

An ESD Ground Probe.


100mil 500 Stroke ESD Ground Probe

Spring Force

spring force chart

Probe Selection

QA Technology offers many combinations of probes. You can build your probe by selecting the tube style, tip style and spring force for your specific application.

If you have questions at any time during the process, contact us at (603) 926-0348.

P/N 100-PR
NOTE: Not all combinations are available. Please verify your part number to be sure it is valid.
If you need assistance, please call 603-926-0348.

Begin building your part number.

Select your tube material.
        Current Rating1
Letter Material Average Resistance   SS @ 204°C
 P Nickel silver/ID precious metal clad < 30 milliohms   10 Amps
Select your tip style. Standard material is heat-treated BeCu/plated gold over nickel.
Use the drop-down menu at right to filter your choices by target type.
Select your spring force.
Letter Spring Force Preload @ 0.417 [10.60]
Material Cycle Life @
0.417 [10.60]  Stroke
 L Low 0.56 [16g/0.16N] 2.9 [82g/0.81N] MW 80,000

1Current Rating is affected by spring material and lubrication choice. MW springs and lubrication both have a 120°C operating temperature limit. Use SS springs with no lubrication (-N) for testing up to 204°C. Before using probes near these limits, please refer to Current Carrying Capacity and Operating Temperature Application Notes.

2Maximum plunger OD should be used to calculate minimum guide plate clearance holes.

All specifications subject to change without notice. All dimensions are in [mm]. All spring forces are oz [gm/newtons]. US Patent No. 4,885,533