FSCB30A Sinus Cosinus Potentiometer

Non-Linear Conductive Plastic (Servomount) SIN/COS Potentiometer

About the FSCB30A Sinus Cosinus Potentiometer

The FSCB30A is a servomount type potentiometer with ball bearings and precision sine/cosine output. It is available in multiple diameters.

Features SIN/COS potentiometer FSCB30A

  • Dimensions (mm) DxL: 29×22.5
  • Element: conductive plastic
  • Function characteristics: 360°sin/cos
  • Conformity peak to peak (± %): 1.0 to 0.7
  • Mechanical travel: 360°
  • Electrical travel: 360°

Standard Specifications Available

Multi-ganged (available up to 3 gangs. Housing length is extended by 16mm per 1 gang), shaft with front and rear extension (rear shaft with 3mm dia. and 10mm length), shaft dia. (ø3.175mm) with inch dimensions, special machining on the shaft.


Shaft Dia. (mm)
Standard resistance values
1k, 2k, 5k, 10k (O)
Special practical resistance values
500, 20k, 50k (O)
Total resistance tolerance
Standard Class ±15% (L), Precision Class ±10% (K)
Conformity tolerance
Standard Class ±1.0%
Precision Class ±0.7%
(Peak-Peak) resolution
Essentially infinite
Output smoothness
Within 0.1% against input voltage
Contact resistance variation
Within 8% C.R.V.
Power rating
Electrical travel
360º (Endless)
Mechanical travel
360º (Endless)
Insulation resistance
Over 1000MΩ at 500 V.D.C.
Dialectric strength
1 minute at 500 V.A.C.
Starting torque
Within 3mN·m (30gf·cm)
Resist. temp. coefficient
Approx. 30g