Metal Shaft Potentiometer
20mm Size Metal Shaft Type
RK203/EC20A
Series
Heavy rotation torque and good operational feel, available in potentiometer and encoder type.
Rotary
Potentiometers
Slide
Potentiometers
Typical Specifications
Specifications
Items
Potentiometer
Rating
Operating life
0.05W
Encoder
1mA 5V DC
30,000cycles
Products Line
Potentiometer
Metal
Shaft
Insulated
Shaft
Knob
Operating
Flat
Operating section
Length of
operating section
（mm）
30
Detent
torque
（mN
m）
・
Number
of detent
Rotational Operating
angle
direction
240$max
Vertical
Minimum
order unit
（pcs.）
400
Products No.
Drawing
No.
1
Depending on individual
specification
RK2031110
Encoder
Operating
section
Detent
Length of
torque
operating section
（mN
m）
・
（mm）
Number
of
detent
Number Travel of push- Operating
of pulse on switch
（mm）
direction
Minimum
order unit
（pcs.）
Products No. Drawing
No.
EC20A1820401
Flat
30
40±20
18
18
1.5
Vertical
400
EC20A1824401
3
2
Notes
1. All the potentiometer types can be customized. Contact us with the detailed specifications if you have such
requirements.
2. The same size of the non-switch type can be used as an encoder type. The switch type is an incremental encoder
type only.
352
ALPS [ ALPS ELECTRIC CO.,LTD. ]
