Copal M Series Wirewound Multiturn Type

 A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. The measuring instrument called a potentiometer is essentially a voltage divider used for measuring electric potential (voltage); the component is an implementation of the same principle, hence its name.

Our potentiometers are used in various industrial equipment (industrial robots, injection molding machines, bank’s automatic teller machine), transportation equipment, computer peripheral devices, measuring instruments, and others for positioning and angle sensors, as well as for manual setting in communications equipment and measuring instruments.


  • Line-up includes products ranging from 3 to 10 turns
  • Cost-effective (M-22E10) in house comparison
  • Dial can be attached (M-22 series only)
  • RoHS compliant

  Another Article:

List of Part Number

No. of turnNominal resistance value (Ω)Part Number
3 turns100, 200, 500, 1k, 2k, 5k, 10k, 20kM-1303
5 turnsM-1305
10 turns100, 200, 500, 1k, 2k, 5k, 10k, 20k, 50kM-22S10


ItemM-13 SeriesM-22 Series
Resistance torelance± 5%
Independent linearity± 0.5%± 0.2%
End resistance, maximum2 % or 4 Ω, whichever is greater0.5 % or 1 Ω, whichever is greater
Effective electrical angle1080°1800°3600°
Mechanical angle1080°±10º1800°±10º3600°±10º
Power rating0.75W1W2W
Dielectric strength1000 1 min Vrms
Insulation resistance1000 MΩ minimum (at DC 500 V)
Rotational torque14.7 mN·m {150 gf·cm}   maximum9.81 mN·m {100 gf·cm}  maximum
Strength of tighten screw0.98 N·m {10 kgf·cm} maximumM-22E10-000:  0.784 N·m {8 kgf·cm}
M-22E10-050: 0.588 N·m {6 kgf·cm}
Stop strength0.147 N·m {1.5 kgf·cm} maximum0.196 N·m {2 kgf·cm} maximum
Peak noise20 Ω maximum(at 4 min-1)
Temp. coefficient of resistance± 50 ppm/°C
Operating temp. range−40 ~ 85 °C
Rotational life15000 cycles25000 cycles
Net weightApprox. 7 gApprox. 19 gApprox. 17 g
Protection gradeIP40

Datasheet: Copal M Series Wirewound Multiturn Type Potentiometer