Designed for dual level, loaded board 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
|P||Nickel silver/ID precious metal clad||< 100 milliohms||3.6 Amps|
|Letter||Spring Force||Preload||@ 0.317 [8.05]
|Material||Cycle Life @
0.317 [8.05] Stroke
|S||Standard||0.7 [20g/0.19N]||4.0 [113g/1.11N]||SS||50,000|
|H3||High||1.8 [51g/0.50N]||6.0 [170g/1.67N]||SS||50,000|
|D||Decreased stroke is 0.250 [6.35]. Must select spring from X31-25 Series with this option.|
|N||No probe lubrication. Removing probe lubrication greatly reduces cycle life and should only be used in applications requiring operating temperatures below -45°C or above 120°C.|
|Heat-treated steel/plated gold over nickel. (see tip styles for availability)|
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.
300.350 [8.89] max stroke for H spring.
All specifications subject to change without notice. All dimensions are in [mm]. All spring forces are oz [gm/newtons]. US Patent No. 6,570,399 & 4,885,533