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2CP2531WS Series
With snap action switch.
Conductive plastic resistor element used (Low rotational noise).
25mm square body.
300 degree + 15degree(switch) operating angle.
Highly dustproof.
Last update: 2022.11.07. [Electrical-spec] [Mechanical-spec] [Note] [Dimensions] [Model-number] EU-RoHS

This product is constructed by a ladder circuit. Cannot use it for a rheostat use (Cannot use to change a resistance level).

Electrical specifications 2CP2531WS Series
Products 2CP2531WS-*
Attenuation direction
[Load: high]

CCW (Large attenuation & cut off) - CW (Small attenuation)
(CCW to CW)
315300285270255240225210195 1801651501351201059075604530 150
(SW on)
Cut-off58484237333027 2422201816141210864 20
Circuit method Ladder circuit
Total resistance (1-C) 10kohm,   50kohm,   100kohm
Total resistance tolerance ±20%
Attenuation accuracy
[Load: high]
0 - 10dB: ±1.0dB
   - 30dB: ±2.0dB
   - 42dB: ±3.0dB
Matching accuracy

0 - 10dB: 1.0dB
   - 30dB: 1.5dB
   - 42dB: 2.5dB
Insertion loss 0.5dB or less
Cut off [15kHz] 85dB Min.
Voltage proof 1 Min. at AC500V
Insulation resistance 50Mohm or more at DC500V
Max rating DC20V (0.1W)
Sliding noise level 47mV or less (by JIS C 6443)
Rotational life 100,000 Cycles Min. (18cycles/min, Sliding noise level: Less than 100mV)
Contact capacity
(Snap action switch)
AC125V 5A, AC250V 3A (SS-5GL13 OMRON Corporation)

Mechanical specifications 2CP2531WS Series
Operating angle 315 degrees ±5 degrees
Rotational torque 3Ncm ±0.5Ncm
Click torque 5Ncm ±0.5Ncm
Strength Nut-Attached 50Ncm
Attached parts Hexagonal nut (M9)
Stopper strength 50Ncm
Push-pull strangth 50N

General specifications CP2500 Series
Temperature range -10 to +70 degrees C (Operating), -15 to +75 degrees C (Storage)
Relative humidity 90%RH (No condensation)

* Solder heat resistance: 350deg C max, 5sec max, 2 times. (Manual soldering only)
* Special order of the shaft length is possible. Please contact us for details.
* It is highly recommended that the fault tolerant system is to be set up in the big situation like the live broadcast.
* Replacing it from other brands tests it enough, and please consider.
* Caution in Ladder circuit use.

   Important points in using audio curve and log curve of TKD faders >>

Dimensions - 2CP2531WS-*

Dimensions - Terminations

Model number
2 CP2531 WS - 10K
*1 *2 *3   *4

*1 Number of circuits 2  : Two circuits standard
*2 Product number CP2531 : CP2531 Series
*3 Mechanical click and snap action switch option WS : With (standard)

Total resistance

10K   : 10kohm
50K   : 50kohm
100K : 100kohm

Products No.
( X: Standerd model)
Number of circuits Output law Resistance Click Shaft diameter x Shaft length
2CP2531WS-10K X 2 Audio 10kohm With Φ6 x 20mm
2CP2531WS-50K X 2 Audio 50kohm With Φ6 x 20mm
2CP2531WS-100K X 2 Audio 100kohm With Φ6 x 20mm

Update list
2022.11.07. First edition