FSCB50A Sinus Cosinus Potentiometer

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

About the FSCB50A Sinus Cosinus Potentiometer

The FSCB50A is a servomount type potentiometer with ball bearings and precision sine/cosine output. It is available in multiple diameters.

Features SIN/COS potentiometer FSCB50A

  • Dimensions (mm) DxL: 50.8×26
  • Element: conductive plastic
  • Function characteristics: 360°sin/cos
  • Conformity peak to peak (± %): 0.5 to 0.2
  • 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 6mm dia. and 15mm length), bushingmount type, shaft dia. (ø6.35mm) with inch dimensions, special machining on the shaft, oil-filled type.


Shaft Dia. (mm)
Standard Resistance Values
1k, 2k, 5k, 10k (O)
Special Higher Practical Resistance Values
20k, 50k, 100K (O)
Total Resistance Tolerance
Standard Class ±15% (L)
Precision Class ±10% (K)
Conformity Tolerance (Peak-Peak)
Standard Class ±0.5%
Precision Class ±0.3%
Super Precision Class ±0.2%
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 1,000MO at 500 V.D.C.
Dielectric Strength
1 minute at 1,000V.A.C.
Starting Torque
Within 5mN·m (50gf·cm)
Max. Working Voltage
Resist. temp. coefficient
Approx. 120g