321
Metal
Shaft
Insulated
Shaft
Knob
Operating
Ring Type
Slide
Potentiometers
Rotary
Potentiometers
Refer to P.320 for attached parts.
Refer to P.322 for ordering products not listed.
In addition to the products listed, we can accommodate the follow specifications.
Products Specification
Type Model Mounting height
（mm）
Detent variety Gang error
Single-shaft,
single-unit RK27111
Single-shaft,
dual-unit RK27112
Single-shaft,
quad-unit RK27114
12.5
Center
21
31
41
−60dB to 0dB
within 3dB
−80dB to −60dB
within 5dB
possible
depending on total
resistance and taper.
Total Resistance Variety
Total resistance
（kΩ）105 20 50 100 250
Resistance Taper
Resistance taper 15A 3B
Dimensions of Shaft
1 S
lotted type Unit:mm
2
Flat type Unit:mm
M8G0.75
L1
R1
7
ø6
C1
60˚
4.5
Shaft shown in full
CCW position
M8G0.75
7
C0.5
L1
ø6
1
1.6
Not specified slotting angle
L1
15
20
25
30
R1
7
12
12
12
L1
15
20
25
30
marked are specifications recommended by Alps.
Note
27mm Size Metal Shaft Type Potentiometer / Other Specifications
322
Metal
Shaft
Insulated
Shaft
Knob
Operating
Ring Type
Slide
Potentiometers
Rotary
Potentiometers
100
90
80
70
60
50
40
30
20
10
0100908070605040302010
Rotation travel (%) Term."1" Term."3"
Output volt.across term.1-2
Input volt. across term. 1-3 G 100 (%)
V(vol.control)(3B)
J
J
A(15A)
When ordering product varieties that are not listed, specify referring to the examples below.
Sample Part Number
R K 2 7 1 1 2 A 0 S 2 5 C 0 A 1 0 4
Detent
Model type
Code
111
112
12A
Model type
Single unit
Single unit, with detent
Dual unit for vol.
Shaft type
Code
F
Shaft type
Flat
SSlotted
Resistance taper
Code
A
V
Resistance taper
15A
3B
Total resistance
Code
502
103
Total resistance
（kΩ）
5
10
Total resistance
（kΩ）
50
100
Code
503
104
203 20 250
254
Length of the shaft（L
1
）（ mm）
Code
15
Length of the shaft
15
20
25
30
20
25
30
Code
C0
C1
Detent
Without
Center
21
31
41
21
31
41
marked are specifications recommended by Alps.
Note
27mm Size Metal Shaft Type Potentiometer / Ordering Products Not Listed
