Incremental
Type
Absolute
Type
186
Power
Push
Slide
Rotary
Encoders
Jog
Shuttle
Telephone
-hook
Detector
Vibration/
Tilt Sensors
Dual-in-line
Package Type
Multi Control
Devices
TACT
Insulated shaft type with a push-on switch and other features has a wide variety of applications.
A 12mm sized unit achieved high resolution,12- pulse /12-
detent and 24 -pulse / 24 -detent.
Used a new structure for the shaft and bushing, and achieved
a high precision, responsive system.
Also available with a 0.5mm push switch.
Incremental type.
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●
●
●
5mA 5V DC
Without detent
Other
15,000 cycles
30,000 cycles
Rating（max.）（Resistive load）
Items Specifications
Operating life
Features
Typical Specifications
Products Line
Controls for image and sound devices, including DVD
players, mini component stereos, CD players, portable audio
players and monitors.
Controls for audio mixers and electronic instruments.
●
●
Applications
Products No.
Drawing
No.
Minimum packing
unit（pcs.）
Detent torque
Resolution
Length of
operating section
（mm）
2
1,200
1
3
1
3
2
1
3
1
3
1
Vertical
Number
of detent
12
24
Without
Standard
3 to 20 mN・m
15
20
25
15
20
25
8.5
（Hollowshaft）
20
25
8.5
（Hollowshaft）
20
25
20
25 Lightest（jog）
3±2 mN・m
Standard
3 to 20 mN・m
Lightest（jog）
3±2 mN・m
Standard
25±15 mN・m
EC12E1220407
EC12E1220406
EC12E1220405
EC12E1240405
EC12E1240406
EC12E1220301
EC12E1240301
EC12E24204A2
EC12E24204A8
EC12E24204A9
EC12E2420301
EC12E24404A8
EC12E24404A6
EC12E2440301
EC12E2430404
EC12E2430401
With High Collar Type
Without
――
Push-on
switch
Travel of push-on
switch（mm）
Operating
direction
12
24
8.5
（Hollowshaft）
8.5
（Hollowshaft）
12mm Size Insulated Shaft Type Encoder Variety
EC12E Series
Lead Free
Incremental
Type
Absolute
Type
187
Power
Push
Slide
Rotary
Encoders
Jog
Shuttle
Telephone
-hook
Detector
Vibration/
Tilt Sensors
Dual-in-line
Package Type
Multi Control
Devices
TACT
7
5
153.5
2
3.5 surface
Mounting
ø6.6
(0.6)
(0.8)
12.4
(8.2)
14
(10.2)
13.2
ø6
4.5
3.5 LM1
R
15(5)
(0.8)
2
3.5
ø6.8
ø6
4.5
Mounting surface
14
12.4
(8.2)
(10.2)
13.2
Products Line
With Switch Type
Products
No.
Drawing
No.
Number
of detent
Resolution
Length of operating
section (mm)
4
Vertical Without ――
12
24
20
25
20
25
Standard
3 to 20 mN・m
Standard
25±15 mN・m
12
24
Without
EC12E1220801
EC12E2420802
EC12E2420801
EC12E2430804
EC12E2430803
Push-on
switch
Travel of push-on
switch（mm）
Operating
direction
5
Vertical
12
24
Standard
3 to 20 mN・m
Lightest（jog）
3±2 mN・m
Standard
3 to 20 mN・m
Lightest（jog）
3±2 mN・m
With
0.5
12
24
20
25
20
25
20
25
20
25
EC12E12244A3
EC12E12244A4
EC12E1244401
EC12E1244403
EC12E2424407
EC12E2424404
EC12E2444400
EC12E24444A3
Detent
torque
950
Minimum packing
unit (pcs.)
1,200
Minimum packing
unit (pcs.)
Products
No.
Drawing
No.
Number
of detent
Resolution
Length of operating
section (mm)
Push-on
switch
Travel of push-on
switch（mm）
Operating
direction
Detent
torque
No nuts or washers attached. If necessary, contact us.
Note
For other products, check varieties on P.189
For other detailed specifications, see P.190
Dimensions
7.5
5
2.1
22
13.2
BAC 3-ø1 hole
13.2
22
7.5
2.1
5
ACB 3-ø1 hole
Model Style
Short shaft
No.
1
2
LM1 R1
20 7
25 12
PC board mounting hole
dimensions
（Viewed from mounting face）
Unit : mm
With Bushing Type
12mm Size Insulated Shaft Type Encoder Variety EC12E Series
Incremental
Type
Absolute
Type
188
Power
Push
Slide
Rotary
Encoders
Jog
Shuttle
Telephone
-hook
Detector
Vibration/
Tilt Sensors
Dual-in-line
Package Type
Multi Control
Devices
TACT
Dimensions Unit : mm
LM1 R1
20 7
25 12
3.5 8.5
52.65
1.2 (0.6)
2
ø6
3.5
(0.8)ø6.6
Mounting surface
14
12.4
(8.2)
ø3.1
5
(10.2)
13.2
5.2 2.1
13.2
22
7.5
2.1
5
ACB 3-ø1 hole
Model Style
Hollow shaft
No.
3
PC board mounting hole
dimensions
（Viewed from mounting face）
12.4
(8.2)
14
2
Mounting
surface
3.5 M9x0.75
7
3.5
5.5
LM1
4.5
ø6
(10.2)
13.2
8
1
R
1
13.2
2
3-ø1
2
2.1
5
C
AB
7.5
hole
With bushing
4
2.5
0.4
7
XX
Y
Locating lug detail
Y
LM1 R1
20 7
25 12
3.5 LM1
6(5) R
1
0.5
(0.8)
2
3.5 ø6.8
Switch
travel
Mounting surface
14
12.4
(8.2)
(10.2)
13.2
4.5
ø6
13.2
22
ACB
5
77.5
2.1
5-ø1 hole
With push-on switch
5
12mm Size Insulated Shaft Type Encoder Variety EC12E Series
Incremental
Type
Absolute
Type
189
Power
Push
Slide
Rotary
Encoders
Jog
Shuttle
Telephone
-hook
Detector
Vibration/
Tilt Sensors
Dual-in-line
Package Type
Multi Control
Devices
TACT
Variety
Shaft Dimensions
Flat Type
Unit : mm
With high collar type
LM1
R1
4.5
0.5
ø6
LM1R1
17.5
20
22.5
25
5
7
7
12
1230
3.5
4.5
ø6
1
3.5
2
5.5 LB
LM1
Mounting surface
R
1
With bushing type
LM1R1
20
25
30
35
LB
7
7
12
12
7
12
12
12
Vertical type
Detail dimensions
Except 12 detent.
Detail dimensions
12mm Size Insulated Shaft Encoders