Nidec Copal JC30S/JC40S Single-Turn Wirewound Potentiometer

Nidec Copal JC30S and JC40S series represent high-precision linear displacement sensors that utilize a conductive plastic potentiometer mechanism to convert mechanical motion into a highly accurate analog voltage output.

Wirewound Type

Precision wire winding technology has been used to achieve low noise and long life. Wirewound types include the single-turn J series for use in servo drives and the multiturn M series for use in settings.

Conductive Plastic Type

Special film resistors and original contact construction provide long life, with degradation that is theoretically infinitely small. Conductive plastic types include single-turn types and linear types, both for use in servo drives.

Cement Type

The use of cermet resistors allows for low prices. The degradation is theoretically infinitely small. Cermet types are single-turn for use in servo drives and for settings.

Optical Contactless Type

The contactless configuration offers a much longer life and lower noise compared with the conventional contact method.

Specifications of Nidec Copal JC30S/JC40S Single-Turn Wirewound Potentiometer

Item	Single turn
Item	JC30S	JC40S
Nominal resistance value	?Refer to LIST OF PART NUMBERS
Resistance torelance	± 15%	± 15%
Resolution	Essentially infinite
Independent linearity	± 0.5%	± 0.3%
Effective electrical angle	343° ± 5°	345° ± 5°
Mechanical angle	360° continuous
Power rating (at 40 °C)	0.7W	1.5W
Dielectric strength	1000Vrms 1 min
Insulation resistance	1000M? minimum (at DC500 V)
Rotational torque	1.18 {12}mN·m {gf·cm} maximum	1.47 {15}mN·m {gf·cm} maximum
Temp. coefficient of resistance	± 400ppm/°C
Operating temp. range	? 40 ~ 85°C
Maximum rotational speed	300 min-1	300 min-1
Rotational life (cycles)	30 million
Output smoothness	0.1 % maximum
Net weight	Approx. 24g	Approx. 56g
Protection grade	IP40