Designed for high current testing.
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.
|Letter||Material||Average Resistance||Current Rating1
SS @ 204°C
|N||Nickel silver/no finish||< 20 milliohms||28 Amps|
|H||High conductivity proprietary alloy/gold plated||< 10 milliohms||55 Amps|
|S||High conductivity proprietary alloy/silver plated||< 5 milliohms||59 Amps|
|Letter||Spring Force||Preload||@ 0.167 [4.24]
|Material||Cycle Life @
0.167 [4.24] Stroke
|H||High||7.0 [198g/1.95N]||18.0 [510g/5.00N]||SS||1,000,000|
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