Material Selection
Pure tungsten probes (green) are suitable for general testing requirements, providing good conductivity and wear resistance.
Tungsten rhenium alloy probes have more stable contact resistance, better fatigue resistance, and are easier to clean, making them ideal for high-precision testing.
Gold-plated tungsten steel probes offer high hardness, corrosion resistance, and enhanced conductivity, making them well-suited for high-accuracy and high-reliability testing environments.
Size and Shape
The probe size and shape directly impact its applicability. Smaller probes are suitable for testing micro-devices, while larger probes are better for larger devices. Consider the characteristics of the device under test and testing requirements when selecting.
Contact Mode
Different contact modes are suitable for various test types:
Needle probes are suitable for testing device pins
Spring-loaded probes are suitable for testing device surfaces
Surface mount probes are suitable for testing small devices
Frequency Range
Ensure the probe frequency range covers the operating frequency of the device under test. Wider frequency range probes are typically more expensive, so balance requirements with budget.
Price and Brand
Price is also an important factor, as different brands and models vary significantly in cost. Well-known brands typically provide higher reliability and performance, so consider both budget and brand reputation.
choose the tungsten probe material, size, shape, contact mode, and frequency range based on the specific testing requirements, while balancing cost and brand reputation. Testing different options is recommended to determine the optimal probe for your application.
