357
Rotary
Potentiometers
Slide
Potentiometers
Metal
Shaft
Insulated
Shaft
Knob
Operating
Through
Shaft Type
Ring
Type
High performance 12mm wide type
12mm Size Insulated Shaft Snap-in Type
RK12L
Number of
resistor elements
Mounting
direction
Vertical
type
Horizontal
type
Vertical
type
Horizontal
type
Shaft
type
Flat
Center
detent
Without
Without
With
Total resistance
（k Ω）
50
50
10
10
10
20
50
10
20
1B
15 A
1B
15 A
1,000 2,000
800 1, 6 0 0
1, 2 0 0 2,400
800 1, 6 0 0
2
2
1
1
Resistance
taper
RK12L1230C0K
RK12L1230C0T
RK12L1230C1M
RK12L123000E
RK12L1210C0R
RK12L12C0C0V
RK12L12C0A0E
RK12L12C0A0G
RK12L12C0A0A
RK12L12A0C0R
Products No.
Minimum order unit （pcs.）
Japan Export
Drawing
No.
Dual-unit
Product Line
20
30
25
30
15
25
30
For tone
For vol.
Application
15 C
15 A
Length of the shaft
LM1
（mm）
■Typical Specifications
Items Specifications
Total resistance tolerance
±20％
Maximum operating voltage
50V AC for AC only
Total rotational angle
300°±5°
Rotational torque
2 to 15mN・m
Operating life
15,000 cycles
Operating temperature range
−10℃ to ＋70℃
Refer to P.358 for other specifications.
Refer to P.359 for ordering products not listed.
Refer to P.366 for soldering conditions.
Packing Specifications
Tray
Length of the shaft
LM1
（mm）
Number of packages （pcs.） Export package
measurements （mm）
1 case / Japan
1 case / export packing
15 1, 2 0 0 2,400
543×377×25020 1,000 2,000
25, 30 800 1, 6 0 0
Other varieties are also available. Refer to “Other Specifications” (P.358).
Note
358
Rotary
Potentiometers
Slide
Potentiometers
Metal
Shaft
Insulated
Shaft
Knob
Operating
Through
Shaft Type
Ring
Type
In addition to the products listed, we can accommodate the follow specifications.
Total Resistance Variety
Total resistance （k Ω）
510 20 50 10 0 200
Resistance Taper
Shaft Variety
Dimensions Unit:mm
Unit:mm
Resistance taper
15 A 1B 3B 15 C
Style
Shaft
variety
LM115 20 25 30
ℓ
14.5 712 12
No.
1
2
Photo Style
PC board mounting hole dimensions
（Viewed from mounting side）
(14)
60˚
0.3
9.5
12
6
2.6
0.6
2
(3.5)
(3.2)
10
5.9
30
R3
(8.6)12
4.5
ø6
Shaft shown in
full CCW position
60˚
9.5
(13)
6
0.3
12
LM1
R3
5.4
4.5
(8.6)
2
0.6
(3.5)
R1
ø6
5.5
(3.2)
Shaft shown in
full CCW position
Mounting
surface
Terminal Layout / Circuit Diagram
123
123
2
33
2
1
1
Outer
Inner
123
R1
R2 1 2 3
：
：
Horizontal type
RK12L121
（For tone control）
RK12L12A
（For vol. control）
Vertical type
RK12L123
（For tone control）
RK12L12C
（For vol. control）
Marked are specifications recommended by Alps Alpine.
Note
12mm Size Insulated Shaft Snap-in Type / Other Specifications
12mm Size Insulated Shaft Snap-in Type
RK12L
LM
120 25 30
R
17
15
4.5 12 12
3.3
6
2
2
2.1
12.2
10
6-ø0.8 hole
10
2.1
13
11
2
6
2
6-ø0.8 hole
Vertical type Horizontal type
R1
LM
1
RK12L12-RV14.EPS
R1
LM
1
359
Rotary
Potentiometers
Slide
Potentiometers
Metal
Shaft
Insulated
Shaft
Knob
Operating
Through
Shaft Type
Ring
Type
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 (%)
B(1B)
V(vol.control)(3B)
J
J
A(15A)
100
90
80
70
60
50
40
30
20
10
0102030405060708090
Output volt.across term.2-3
Input volt. across term. 1-3
100
C(15C)
G 100 (%)
J
Rotation travel (%)
Term."1" Term."3"
J
When ordering product varieties that are not listed, specify referring to the examples below.
Sample Part Number
R K 1 2 L 1 2 C 0 F 3 0 C 0 A 5 0 3
Detent
Model type
Code
1
3
Model type
Horizontal type for tone
AHorizontal type for vol.
CVertical type for vol.
Vertical type for tone
Shaft type
Code
F
Shaft type
Flat
Resistance taper
＊Only available in flat format.
Length of the shaft LM1
（mm）
Code
15
Length of the
shaft
15
20 20
Code
25
30
Length of the
shaft
25
30
Total resistance
Code
C0
C1
Center detent
Without
With
Code
A
B
Resistance taper
15 A
1B
Resistance taper
15 C
Code
C
3BV
Code
502
10 3
203
Total resistance
（k Ω）
5
10
20
Total resistance
（k Ω）
50
10 0
200
Code
503
10 4
204
B: For tone & general （Model type : 1, 3）
V: For vol. （Model type : A, C）
Marked are specifications recommended by Alps Alpine.
Note
12mm Size Insulated Shaft Snap-in Type / Ordering Products Not Listed
344
Rotary
Potentiometers
Slide
Potentiometers
Metal
Shaft
Insulated
Shaft
Knob
Operating
Through
Shaft Type
Ring
Type
List of Varieties
Insulated Shaft Potentiometers
Type 9mm size 11mm size 12mm size 14mm size
Series
RK09K11
RK09D11
RK09K12 RK09Y11L RK11K RK12L12 RK14K
Single-unit Dual-unit Single-unit Single-unit Dual-unit Dual-unit
Photo
Terminal mounting
Vertical / Horizontal Horizontal Vertical / Horizontal
Bushing
Without With / Without Without With / Without
Operating temperature range
−10℃ to ＋70℃
Operating life
5,000 cycles 10,000 cycles 1,000,000 cycles 15,000 cycles
Available for automotive
use
ーーーーーー
Life cycle
Electrical
performance
Total resistance
（k Ω）
5, 10, 20, 50, 100, 200 10 5, 10, 20, 50, 100, 200
Resistance taper
15A, 1B, 3B, 15C B15A, 1B, 3B, 15C
Total resistance
tolerance
±20％ ±30％ ±30％ ±20％
Rated power
0.05W 0.03W 0.01W 0.05W
Maximum operating
voltage
50V AC
20V DC
50V AC
for AC only
50V AC
5V DC
50V AC
20V DC
50V AC
for AC only
Gang error
ー−40dB to 0dB
3dB max. ー ー
Volume control
−40dB to 0dB 3dB max.
For tone control
within 2dB
at center
Insulation
resistance
10 0 MΩ min. 25 0 V D C 10 0 MΩ min.
500V DC 10 0 MΩ min. 25 0 V D C
Voltage proof
250V AC for 1minute 500V AC
f o r 1m i n u t e 3 0 0 V A C f o r 1m i n u t e
Center-taps
Without Without / With Without Without / With
（Volume control）
Mechanical
performance
Detent
Without, Center Without Without, Center Without
Without, Center
Stopper strength
0 . 3 N・m ー
Without bushing 0.5N・m
With bushing 0.6N・m
0 . 5 N・m 0 . 6 N・m
Push-pull strength
50N max. 30N max. 80N max.
Vibration
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
Shaft configuration
Flat type, Knob type,
Screwdriver type Flat type
Terminal style
Insertion
Page
345
3 6 4（ R K 0 9 D 1 1 7 ） 352 353
357
3 6 4（ R K12 L12 H 、
R K12 L12 7 ） 360
Insulated Shaft Potentiometers Soldering Conditions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 366
Potentiometers Cautions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 418
Potentiometers Measurement and Test Methods ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 420
Potentiometers Resistance Taper ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 422
Note
● Indicates applicability to all products in the series.
366
Rotary
Potentiometers
Slide
Potentiometers
Metal
Shaft
Insulated
Shaft
Knob
Operating
Through
Shaft Type
Ring
Type
Reference for Manual Soldering
Reference for Dip Soldering
Series
Preheating Dip soldering
No. of solders
Soldering surface temperature
Heating time
Soldering temperature
Soldering time
RK12L 10 0 ℃ 1 min. max. 260℃ max. 5s max. 2 time max.
Series Tip temperature Soldering time No. of solders
RK09D, RK09K, RK09Y11L,
RK11K, RK12L, RK14K 350℃ max. 3s max. 1 time
Insulated Shaft Potentiometers
/
Soldering Conditions
