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||< 55 milliohms||4.5 Amps|
|Letter||Spring Force||Preload||@ 0.317 [8.05]
|Material||Cycle Life @
0.317 [8.05] Stroke
|S||Standard||1.2 [34g/0.33N]||4.8 [136g/1.32N]||SS||100,000|
|U3||Ultra||1.3 [37g/0.36N]||7.5 [213g/2.09N]||SS||10,000|
|D||Decreased stroke is 0.250 [6.35]. Must select spring from X39-25 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 -55°C.|
|Heat treated steel/plated gold over nickel. (see tip styles for availability)|
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 temperature 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.
3 00.350 [8.89] max stroke for U 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