Screw-tip type: Uses a simple screw at the end to hold the probing tip which is located at 45 degree angle. It is the simplest and cheapest tip holder, and can be supplied with regular, coaxial or triaxial cable and connectors. Rod is 7.5cm and comes supplied straight as standard for you to customise or can be supplied pre-bent on request and must be stated at time of order.
Electrical options
Regular tip holder: The electrical signal from the tip passes all the way to the tip holder body. The signal then goes through a PVC cable, and can measure current levels in the mA region. This current level is typical for LED, LD, PD , OLED and some LCD. You can choose screw, spring or tubular types.
Coaxial tip holder: Provided with a coaxial cable 1.2m long, terminated with BNC male connector (also called coaxial male). This can measure current levels down to 10 pA with good shielding. You can choose screw, spring or tubular types.
Triaxial tip holder: It comes with a triaxial cable 1.2m long terminated with triaxial male. This can measure the current level less than 100 fA with qualified shielding box. You can choose screw, spring and tubular types.
Please specify the micropositioner model number and the resolution that you need to probe your target. Choose the tip holder from the electrical connection - coaxial or triaxial, then choose the tip holder mechanical type- screw, spring or tubular.
Screw Type Tip Holder: Screw Nut Type Tip Holder:
TH-SC-B TH-SC-C TH-SC-T TH-SN-B TH-SN-C TH-SN-T
Voltage 1000V 500V 1800V Voltage 1000V 500V 1800V
Current 5A 2A 1A Current 5A 2A 1A
Leakage 10nA 10pA 1pA Leakage 10nA 10pA 1pA
Frequency 2MHz 2MHz 1MHz Frequency 2MHz 2MHz 1MHz
Spring Type Tip Holder : Tubular Type Tip Holder:
TH-SP-B TH-SP-C TH-SP-T TH-TU-C TH-SC-T
Voltage 1000V 500V 1800V Voltage 1000V 1800V
Current 5A 2A 1A Current 5A 1A
Leakage 500nA 10pA 1pA Leakage 500fA 80fA
Frequency 2MHz 2MHz 1MHz Frequency 1MHz 1MHz
