Qualmax now offers Spring Contact Probe for Lead Free Application  

Dubble-ended Probe, Single-ended Probe, Solid Pd Alloy Probe, Constant Cres Probe,
Coaxial Probe, Kelvin Probe, Switching Probe, Touch Probe, GT Probe, Battery Contact,
Pneumatic Probe, Interface Probe, Industrial Application Probe, In-Circuit Test Probe

Solid Pd Alloy Probe:

Solid Pd Alloy Probes are developed to address the plunger tip contamination issue often found in the
testing of lead free solder ball packages including SAC105 and SAC305. It also shows excellent
contact resistance throughout the life span, which makes it a perfect choice for any high bandwidth
test applications.

Problems   

• Sn easily transfered to the plunger tip
• Relatively short life span of probe
• High Cres even after the cleaning of the probe
• Unstable Contact Resistance
• Probe cleaning required frequently
• Sn contamination is not not easy to clean

Solution

• Solid Pd Alloy plunger
• Very low resistance
• Very stable resistance
• Very good for critical lead free applications
• Either DB type or GX type probes can be made
• No cleaning is required until about 200,000 touch downs depends on the application

Comparison Data (Example)