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||MW @ 120°C||SS @ 204°C|
|P||Nickel silver/ID precious metal clad||< 20 milliohms||10.2 Amps||14.3 Amps|
|G||Nickel silver/OD gold plated||< 20 milliohms||12.2 Amps||17.5 Amps|
|N||Nickel silver/no finish||< 375 milliohms||8.8 Amps||13.2 Amps|
|H||High conductivity proprietary alloy/gold plated||< 15 milliohms||15.9 Amps||22.0 Amps|
|Letter||Spring Force||Preload||@ 0.317 [8.05]
|Material||Cycle Life @
0.317 [8.05] Stroke
|L||Low||0.8 [23g/0.22N]||3.0 [85g/0.83N]||MW||1,000,000|
|S||Standard||1.5 [43g/0.42N]||5.7 [162g/1.58N]||SS||500,000|
|H3||High||2.0 [57g/0.56N]||7.0 [198g/1.95N]||SS||300,000|
|U3||Ultra||2.5 [71g/0.70N]||8.1 [230g/2.25N]||MW||10,000|
1Current Rating is affected by spring material and lubrication choices. Standard lubrication has a 120°C maximum operating temperature limit. Use SS springs with no lubrication (-N) for testing beyond standard lubrication temperatures limits up to 204°C, Before using probes near these current 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.
30.350 [8.89] max stroke for "H & U" spring.
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