Metal Shaft Potentiometer
27mm Size Metal Shaft Type
RK27 Series
High performance potentiometer with excellent operational feel.
Rotary Potentiometers Slide Potentiometers
Typical Specifications
Items Total resistance tolerance Maximum operating voltage Total rotational angle Rotational torque Operating life Operating temperature range Specifications
±20% 30V AC 300±3° 8 to 35mN m ・ 15,000cycles
− 10℃ to +70℃
Metal Shaft Insulated Shaft Knob Operating
Product Line
Number of resistor elements Mounting direction Shaft type Length of the shaft (mm) Center detent
31 Single-unit Slotted Horizontal type Dual-unit 20 Flat 25 RK27112A00B9 RK27112A0A16 3 20 100 25 Without 15A 100 RK27112A00CC RK27112A00AK 2 25 RK271111001T
Total resistance (kΩ)
Resistance taper
Minimum order unit (pcs.)
Products No.
RK2711120026
Draw ing No.
1
Note
Products other than those listed in above products are also available. Please contact us for details.
Refer to P.356 for product varieties.
354
Metal Shaft Potentiometer
27mm Size Metal Shaft Type RK27 Series
Dimensions
No. Photo Single-shaft, single-unit RK27111
Not specified slotting angle 27 1.6 1 ø6 10
Unit:mm
Style PC board mounting hole dimensions (Viewed from mounting side) Rotary Potentiometers
15.3 7 25 Mounting surface 5
Slide Potentiometers
24.5
R1 2 M8G0.75
123 1
4
C0.5
12.5
ø3
12
3-ø1.2 holes
Single-shaft, dual-unit RK27112
55
1
L1
20
25
Metal Shaft
L1
7 1.6 1 ø6 Not specified slotting angle 27 10 10 Mounting surface 5
25.3
Insulated Shaft Knob Operating
24.5
4
C0.5 R2 R1 2 M8G0.75 1 123
12.5
ø3
12
6-ø1.2 holes
Single-shaft, dual-unit RK27112
L1
20
25
60゚ 10
25.3 7
L1
12
27
Mounting surface 10 5
¿6
12 12.5
3
24.5
4.5
R2
R1
2 M8×0.75
C1
¿3
1
123 4
6п1.2 holes
Shaft shown in full CCW position
55
55
2
355
27mm Size Metal Shaft Type Potentiometer
Product Varieties
In addition to the recommended products, the following specifications can also be accommodated.
Products Specification
Rotary Potentiometers Slide Potentiometers Type
Single-shaft, single-unit Single-shaft, dual-unit Single-shaft, quad-unit
Model
RK27111 RK27112 RK27114
Mounting height (mm)
Detent variety
Gang error
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) (
5 10 20 50 100 250
Metal Shaft Insulated Shaft Knob Operating
Resistance Taper
Resistance taper
15A 3B
Dimensions of Shaft 1 Slotted type
Unit:mm
L1 7 1.6
Not specified slotting angle
L1
15
1
20
ø6
25 30
M8G0.75
C0.5
2 Flat type
L1
Unit:mm
R1
7
60
˚
4.5
L1
15 20 25 30
R1
7 12 12 12
ø6
Shaft shown in full CCW position
M8G0.75
C1
Note
marked are specifications recommended by ALPS.
Refer to P.363 for attached parts. Refer to P.357, 502 for resistance taper.
356
27mm Size Metal Shaft Type Potentiometer
Orders Other Than Recommended Products
When ordering product varieties that are not listed in the Product Line, please specify by referring to the below example.
Sample Part Number
RK27112A0
Model type
Code 111 112 12A
Model type Single unit Single unit, with deteut Dual unit for vol.
S25
C0
A104
Rotary Potentiometers Slide Potentiometers
Shaft type
Code F S
Shaft type Flat Slotted
Metal Shaft Insulated Shaft Knob Operating
Length of the shaft L1) mm) ((
Code 15 20 25 30
Length of the shaft 15 20 25 30
Detent
Code C0 C1 21 31 41
Detent Without Center 21 31 41
Resistance taper
J
Code A V
Resistance taper
15A 3B
100 90 80 70 60 50 40
V (v ol. co nt ro l)( 3B )
Output volt.across term.1-2 100 (%) Input volt. across term. 1-3 G
30 20 10 0 10
A(
15
A)
20 30 40 50 60 70 Rotation travel (%)
80 90 100
Term."1"
J
Term."3"
Total resistance
Code 502 103 203 Total resistance
(kΩ)
5 10 20
Code 503 104 254
Total resistance
(kΩ)
50 100 250
Note
marked are specifications recommended by ALPS.
357
Metal Shaft Potentiometers
List of Varieties
Type Number of drive shafts Model
RK203 / EC20A RK2711
20mm size metal shaft
27mm size metal shaft
50mm size metal shaft highquality-audio
Single-shaft RK5011□A
Rotary motor-driven
Rotary Potentiometers Slide Potentiometers
RK1681□ / MG0
RK2711□MC0
Photo
The bushing Fixing method of bushing fastened by use can be of screws Bushing screw clamp
The bushing can be fastened by use of screws Horizontal type Without
Terminal mounting Attached switch Gang error applicable to Dual-unit parts for audio volume control purposes Metal Shaft Insulated Shaft Knob Operating Solder heat resistance Electrical performance Mechanical performance Environmental performance Manual soldering Dip soldering Reflow soldering
Vertical type
−60dB to 0dB 3dB max. 300℃ max. 3s max. 260±5℃, 5±1s 350℃ max. 5s max.
−100dB to 0dB 2dB max. 350±10℃, 5
+1 0
−40dB to 0dB 3dB max.
−60dB to 0dB 3dB max.
s
350℃ max. 3s max. 350℃ max. 5s max. Motor terminal : 350$max 2s max. Motor terminal:350℃ max. 2s max.
260±5℃, 5±1s
Operating temperature range Rated power Residual resistance Maximum attenuation (Volume control) Insulation resistance Voltage proof
Stopper strength N m) (・
−30℃ to +80℃ 0.05W R≦10kΩ 20Ωmax. 10kΩ<R≦50kΩ 30Ωmax. 50kΩ<R Nominal total resistance of 0.1% or less 5kΩ≦R< 10kΩ 70dB min. 10kΩ≦R< 50kΩ 80dB min. 50kΩ≦R<100kΩ 90dB min. 100kΩ≦R 100dB min. 100MΩ min. 250V DC 300V AC for 1minute 0.5 100N max.
−10℃ to +70℃ 0.1W 0.05W R≦10kΩ 20Ωmax. 10kΩ<R≦50kΩ 30Ωmax. 50kΩ<R Nominal total resistance of 0.1% or less 5kΩ ≦R< 10kΩ ≦R< 50kΩ ≦R< 100kΩ ≦R 10kΩ 50kΩ 100kΩ 70dB min. 80dB min. 90dB min. 100dB min.
120dB min.
100MΩ min. 500V DC 500V AC for 1minute 0.9 1.5 150N max.
100MΩ min. 250V DC 100MΩ min. 500V DC 300V AC for 1minute 0.9 100N max. 500V AC for 1minute
Push-pull strength Vibration Cold Dry heat Damp heat Page
10 to 55 to 10Hz/min., the amplitude is 1.5mm for all the frequencies, in the 3 direction of X, Y and Z and for 2 hours respectively −40±2℃ for 192h −30±3℃ for 96h −20±3℃ for 240h 85±2℃ for 192h 70±2℃ for 96h 70±2℃ for 240h −20±2 for 96h −30±3℃ for 96h
70±2℃ for 96h 40±2℃, 90 to 95%RH for 96h 360
60±3℃, 40±2℃, 60±2℃, 90 to 95%RH for 240h 90 to 95%RH for 96h 90 to 95%RH for 240h 352 354 358
● Metal Shaft Potentiometers Attached Parts ………………………………………………………………………………363 ● Metal Shaft Potentiometers Cautions …………………………………………………………………………………364, 365
322
Metal Shaft Potentiometers
Attached Parts
The following parts are included with the product.
Unit:mm
Applicable products Bearing screw diameter Hexagonal nut Flat washer Rotary Potentiometers Slide Potentiometers
11 2 ø14 ø9.1 0.5
RK09L RK168 RK097 RK203
M9
M9G0.75
Metal Shaft
11 2 ø14 ø8.1 0.5
Insulated Shaft Knob Operating
RK271
M8
M8G0.75
11
2
ø12 ø7.2
0.5
RK097 RK098 RK163
M7
M7G0.75
8
2
ø10 ø6.2
0.5
RK097 RK098
M6
M6G0.75
363
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