Page 1
RK12L
12mm Size Insulated Shaft Snap-in Type
High performance 12mm wide type
■ Typical Specifications
Items Specifications
Product Line
Number of
resistor elements
Dual-unit
Mounting
direction
Vertical
Horizontal
type
type
Shaft
Length of the shaft
type
Flat
LM
（mm）
1
20
30
25
30
15
Center
detent
Without
With
Total resistance tolerance
Maximum operating voltage
Total rotational angle
Rotational torque
Operating life
Operating temperature range
Total resistance
（k Ω）
50
10
20
50
10
50
Resistance
taper
1B
15 A
1B
15 A
15 C
Application
For tone
50V AC for AC only
−10℃ to ＋70℃
Minimum order unit （pcs.）
Japan Export
1,000 2,000
800 1, 6 0 0
1, 2 0 0 2,4 00
±20％
300°±5°
2 to 15mN・m
15,000 cycles
Products No.
RK12L1230C0K
RK12L1230C0T
RK12L1230C1M
RK12L123000E
RK12L1210C0R
RK12L12C0C0V
Drawing
No.
2
1
Potentiometers
Rotary
Potentiometers
Slide
Metal
Shaft
Insulated
Shaft
Operating
Knob
Vertical
type
Horizontal
type
25
30
Without
10
15 A
20
10
For the Mixing Console Market
Number of
resistor elements
Dual-unit
Mounting
direction
Vertical
type
Shaft
Lengthof the shaft
type
Flat
（mm）
LM
1
30
Note
Other varieties are also available. Refer to "Other Specifications" (P.364).
Center
detent
Without
With
Total resistance
（k Ω）
20
Resistance
taper
15 A
1B
Packing Specifications
Tray
Length of the shaft
（mm）
LM
1
15 1, 2 0 0 2,400
Number of packages （pcs.）
1 case / Japan
1 case / export packing
Export package
measurements （mm）
For vol.
Application
For vol.
For tone
RK12L12C0A0E
RK12L12C0A0G
800 1, 6 0 0
RK12L12C0A0A
RK12L12A0C0R
Minimum order unit （pcs.）
Japan Export
Products No.
RK12L12H0005
800 1, 6 0 0 2
RK12L1270009
2
1
Drawing
No.
Type
Ring
25, 30 800 1,6 0 0
374×5 32×24 020 1,000 2,000
Refer to P.364 for other specifications.
Refer to P.365 for ordering products not listed.
Refer to P.371 for soldering conditions.
363
Page 2
LM
RK12L
12mm Size Insulated Shaft Snap-in Type
Potentiometers
Rotary
Potentiometers
Slide
Metal
Shaft
Insulated
Shaft
Dimensions
No.
Horizontal type
RK12L121（For tone control
RK12L12A（For vol. control
1
Vertical type
RK12L123（For tone control
RK12L12C（For vol. control
RK12L127（For tone control
RK12L12H（For vol. control
2
Photo Style
）
）
）
）
）
）
Terminal Layout / Circuit Diagram
10
)
3.5
(
LM
R
5.5
5.4
(
(
Unit:mm
PC board mounting hole dimensions
（Viewed from mounting side）
30
(
)
8.6
0.6
2
2.6
5.9
15
20 25 30
1
4.5
1
2
0.6
)
3.2
)
3.5
7
(
)
8.6
)
3.2
(
12 12
LM
Mounting
surface
12
4.5
R3
1
R1
4.5
R3
12
60˚
ø6
(14)
Shaft shown in
full CCW position
12
60˚
ø6
(13)
Shaft shown in
full CCW position
12.2
2.1
3.3
2
6
10
2
6-ø0.8
hole
2.1
13
2
11
2
6-ø0.8
6
hole
10
6
9.5
0.3
6
9.5
0.3
Operating
Knob
Type
Ring
3
3
2
1
123
123
Outer
Inner
R1
：
R2 1 2 3
：
2
123
1
12mm Size Insulated Shaft Snap-in Type / Other Specifications
In addition to the products listed, we can accommodate the follow specifications.
Total Resistance Variety
Total resistance （k Ω）
Resistance Taper
Resistance taper
Shaft Variety
Style
5 10 20 50 10 0 200
15 A 1B 3B 15 C
Vertical type Horizontal type
1
LM1
Unit:mm
364
Shaft
variety
Note
LM
1
ℓ
1
15 20 25 30
4.5 7 12 12
Marked are specifications recommended by Alps.
R1
R1
Refer to P.365 for ordering products not listed.
Page 3
12mm Size Insulated Shaft Snap-in Type / Ordering Products Not Listed
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
Model type
Code
1
Horizontal type for tone
3
Vertical type for tone
A Horizontal type for vol.
C Vertical type for vol.
Model type
Shaft type
Code
F
＊Only available in flat format.
Shaft type
Flat
Length of the shaft LM1 （mm）
Code
Length of the
15
20 20
shaft
15
Code
Length of the
25
30
Detent
Code
C0
C1
Center detent
Without
With
shaft
25
30
Potentiometers
Rotary
Potentiometers
Slide
Metal
Shaft
Insulated
Shaft
Operating
Knob
Type
Ring
Resistance taper
Code
Resistance taper
A
B
B: For tone & general （Model type : 1,3）
V: For vol. （Model type : A,C）
15 A
1B
Resistance taper
Code
C
Total resistance
Code
502
10 3
203
Note
Total resistance
（k Ω）
5
10
20
Marked are specifications recommended by Alps.
Code
503
10 4
204
Total resistance
15 C
3BV
（k Ω）
50
10 0
200
100
J
90
80
70
100 (%)
G
60
50
40
30
20
10
Output volt.across term.1-2
Input volt. across term. 1-3
B(1B)
V(vol.control)(3B)
0
Rotation travel (
A(15A)
%) Term."1" Term."3"
J
100
J
90
80
70
100 (%)
G
60
50
40
30
20
10
Output volt.across term.2-3
Input volt. across term. 1-3
100
100908070605040302010
C(15C)
Rotation travel (%) Term."1" Term."3"
J
0102030405060708090
365
Page 4
Potentiometers
Rotary
Insulated Shaft Potentiometers
List of Varieties
Type 9mm size 11mm size 12mm size 14mm size
Series
Photo
Terminal mounting
RK09K11
RK09D11
Single-unit Dual-unit Single-unit Single-unit Dual-unit Single-unit Dual-unit
Vertical / Horizontal Horizontal Vertical / Horizontal Ver tical
RK09K12 RK09Y11L RK11K RK12L12 RK12L115 RK14K
Vertical /
Horizontal
Potentiometers
Slide
Metal
Shaft
Insulated
Shaft
Operating
Knob
Type
Ring
Bushing
Operating temperature range
Operating life
Available for automotive
use
Life cycle
Total resistance
（k Ω）
Resistance taper
Total resistance
tolerance
Rated power
Maximum operating
Electrical
voltage
performance
Gang error
Insulation
resistance
Voltage proof
Center-taps
Detent
Mechanical
performance
Stopper strength
Push-pull strength
Without With / Without Without With With / Without
−10℃ to ＋ 70℃
5,000 cycles 10,000 cycles
ー ー ー ー ー ● ー
5, 10, 20, 50, 100, 200 10 5, 10, 20, 50, 100, 200
15A, 1B, 3B, 15C B 15A, 1B, 3B, 15C 15A, 1B, 3B
±20 ％ ±30％ ±30 ％ ±20 ％
0.05W 0.03W 0.01W 0.05W
50V AC
20V DC
ー
Without, Center Without
50N max. 30N max. 80N max.
50V AC
for AC only
−40dB to 0dB
3dB max.
10 0 M Ω m i n . 2 5 0 V D C
250V AC for 1minute
Without Without / With Without
0 . 3 N・m ー
1,000,000
cycles
50V AC
5V DC
ー ー
50V AC
20V DC
10 0 M Ω m i n .
500V DC
500V AC
f o r 1m i n u t e
Without,
Center
Without bushing 0.5N・m
With bushing 0.6N・m
15,000 cycles
50V AC
for AC only
Volume control
−40dB to 0dB
3dB max.
For tone control
within 2dB
at center
Without Custom
−40℃ to
＋ 85℃
5, 10, 20, 50,
10 0
50V AC
20V DC
ー
10 0 M Ω m i n . 2 5 0 V D C
3 0 0 V A C f o r 1m i n u te
0 . 5 N・m 0 . 6 N・m
−10 ℃ t o
＋ 70℃
5, 10, 20, 50,
100, 200
15A, 1B, 3B,
15 C
50V AC
for AC only
Volume control
−40dB to 0dB
3dB max.
For tone control
within 2dB
at center
Without / With
（Volume control）
Without, Center
350
Vibration
Shaft configuration
Terminal style
Page
Flat type, Knob type,
Screwdriver type
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
Flat type
Insertion
351 358 359 363 366 367
Insulated Shaft Potentiometers Soldering Conditions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 371
Potentiometers Cautions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 427
Potentiometers Measurement and Test Methods ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 429
Potentiometers Resistance Taper ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 431
Note
Indicates applicability to all products in the series.
●
Page 5
Insulated Shaft Potentiometers
Reference for Manual Soldering
Series Tip temperature Soldering time No. of solders
RK09D, RK09K, RK09Y11L,
RK11K, RK12L, RK12L115, RK14K
Reference for Dip Soldering
Series
RK12L
Soldering surface temperature
10 0 ℃ 1 min. max . 260℃ max. 5s max. 2 time max.
/
Soldering Conditions
350℃ max. 3s max. 1 t ime
Preheating Dip soldering
Heating time
Soldering temperature
Soldering time
No. of solders
Potentiometers
Rotary
Potentiometers
Slide
Metal
Shaft
Insulated
Shaft
Operating
Knob
Type
Ring
371
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