STA Series
CR ( Curvature Radius): CR50 means tip apex curvature radius is 50nm, total diameter is under 100nm.
Example:
MSCT-STA025TPL012TSL300-CR10
It means
•STA Series with 0.25mm wire diameter
•Total Probe Length (TPL) is 12mm
•Tip Shrink Length (TSL) is 300um
•Tip Apex curvature Radius (CR) is 10nm, total diameter is under 20nm