MW-SCA250      Coaxial Kelvin probe

MW-SCA250 : Coaxial Kelvin probe MW-SCA250 : Coaxial Kelvin probe

Part Number



Coaxial Kelvin probe


The Kelvin Coaxial Probes are designed for low-level signal probing. The single unit design is especially desirable for the best possible electrical characteristics and improbes tip control over conventional dual tips design

- The Probes are constructed of microwave-quality components
- The 50 ohm semi-rigid cable consists of 8 mil tungsten wire forming the inner conductor and probe point, with isolation from the gold plated copper shield being achieved through the utilisation a Teflon dielectric
- The probe contact protrudes from the shielding by .150" (3 mm) to maintain low-level signal noise to the probe tips available from 0.5 µm to 12.5 µm
- Standard SSMC connector, series / parallel resistor configurations available in option


  • MW-SCA250-12.5-25 : 12.5 µm radius, 25 µm pitch
  • MW-SCA250-5-12.5 : 5 µm radius, 12.5 µm pitch
  • MW-SCA250-10-12.5 : 10 µm radius, 12.5 µm pitch


Technical Specifications

Tip radius

5, 10, 12.5 µm


Resistor serial-parallel, ground strap...

Leakage current

< 10 fA


> 150 MHz


< 10 fF


50 Ohm

Max. power

125 W

Maximum voltage

250 V RMS

Maximum temperature

150 °C


2 x SSMC

Tip material


Shield meterial

Gold plated copper



Associated products

Micropositioner S725 with pivot head

S725PMicropositioner S725 with pivot head

This economic micropositioner will allow landing on pads or lines down to 20 µm.
Pivot head (quick Z down before fine adjust, ideal for probe station).
High precision micropositioner SP100

SP100High precision micropositioner SP100

High-precision micropositioner with inline controls knobs, the SP100 will allow easy landing on pads as well as internal lines within micron accuracy.

- The down Z movement of the tip is totally vertical.
- The knobs with micrometric graduations (100TPI) allow an optimal density on the platen.
- Pivot head (Quick down Z for pre-positioning then fine movement) or Standard head with Z knob.
Micropositioner S725 with spring head

S725SMicropositioner S725 with spring head

This micropositioner will allow landing on pads or lines down to 20µm.
Spring head (for fragile surface or temperature), allows limiting the pressure of needles on the pads.
For technical and commercial information, quote, ordering or request of visit by our representative. +33 (0)476 561 617

5 rue de la Verrerie

38120 Le Fontanil-Cornillon

Grenoble / France

Fax : +33(0) 476 757 484

RCS Grenoble B 381 001 171 - APE 4652Z

TVA FR 48 381 001 171