Encoder
12mm Size Insulated Shaft Type
EC12
Series
Product Line
With Bushing Type
Detent torque
Actuator
・
length
（mm） （mN
m）
25
20
25
30
20
25
30
Standard
25±15
Heavy 40±15
Standard
3 to 20
Number
of detent
12
Number
of pulse
12
Drawing
Operating
Operating
Travel of push-on Minimum order
Product No.
No.
direction force of switch
（
N
）
switch
（mm）
unit pcs.）
（
EC12E1220813
EC12E2420802
Detector
Push
4
24
Vertical
24
Without
950
EC12E2420801
EC12E2420803
EC12E2430804
EC12E2430803
EC12E2460802
Slide
Rotary
Encoders
With Switch Type
Detent torque
Actuator
・
length
（mm） （mN
m）
5±3
17.5
10±5
5±3
10±5
30
15
Vertical
6
Power
Number
of detent
Number
of pulse
Drawing
Travel of push-on Minimum order
Operating
Operating
Product No.
No.
unit pcs.）
（
（mm）
direction force of switch
（
N
）
switch
3
0.5
1,280
EC12D1524403
EC12D1564402
EC12D1524406
EC12D1564404
5
Dual-in-line
Package Type
TACT Switch
TM
Custom-
Products
Note
Nuts and washers are not included. If required, please contact us.
Dimensions
No.
Photo
High collar type
3.5
5 (5)
(0.8)
LM1
1
R
Unit:mm
Style
PC board mounting hole
dimensions
（Viewed
from mounting face）
14
12.4
(8.2)
Incremental
Type
Absolute
Type
2
13.2
13.2
2
2.1
1
(10.2)
2
ø6.8
3.5
Mounting surface
4.5
ø6
LM1
17.5
20
25
R
1
5
7
12
7.5
A C B
5
3-ø1 holes
Short shaft
3.5
5
(0.8)
15
7
14
12.4
(8.2)
2
13.2
2
2.1
(0.6)
2
(10.2)
2
13.2
4.5
ø6
7.5
ø6.6
3.5
ACB
5
3-ø1 holes
Mounting
surface
Refer to
P.194
for product varieties.
193
Encoder
12mm Size Insulated Shaft Type
EC12
Series
Dimensions
No.
Photo
Hollow shaft
3.5
1.2
5
8.5
(0.6)
2.65
(10.2)
Unit:mm
Style
14
12.4
(8.2)
¿3.1
2.1
2
PC board mounting hole dimensions
（Viewed
from mounting side）
13.2
2
2.1
Detector
Push
Slide
3
¿6
2
5.2
13.2
¿6.6
(0.8)
3.5
Mounting surface
M9x0.75
R
1
7.5
A C B
5
3-ø1 holes
5
With bushing
Rotary
Encoders
3.5
5.5
7
2
LM1
A
No thread area
4.5
¿6
14
12.4
(8.2)
13.2
¿8
(10.2)
2
2
2.1
Power
Dual-in-line
Package Type
TACT Switch
TM
Custom-
Products
4
3.5
Locating lug detail
Y
X
X
0.4
7
1
7.5
Mounting surface
13.2
8
A C B
5
Y
2.5
LM1
20
25
30
A
-
-
5
R
1
7
12
12
13.3
11.1
6.85
3-ø1 holes
With push-on switch
type
3
17.5
5
Switch Travel
0.5
4.475
φ
5.975
14.1
12.5
A
E
B
11.7
8.3
5 (6)
2
2.05
E
A
B
2.05
Incremental
Type
Absolute
Type
5
2.15
C
3.5
φ
6.8
D
5-
φ
1Holes
Mounting surface
5.95
Product Varieties
Shaft Dimensions
Flat Type
With high collar type
LM
1
R
1
Unit:mm
Detailed dimensions
LM
1
17.5
4.5
¿6
R
1
5
7
7
12
12
20
22.5
25
30
Mounting surface
With bushing type
3.5
5.5
L
B
LM
1
R
1
4.5
ø6
0.5
Detailed dimensions
LM
1
20
25
30
35
Mounting surface
L
B
7
7
12
12
R
1
7
12
12
12
2
1
3.5
Excluding the 12 detent type
194
3.45
C
D
Encoders
List of Varieties
Type
Series
EC11G
Metal shaft
11mm size
Insulated shaft
20mm size
12mm size
EC12E
EC12D
EC11J
EC11K
EC20A/RK203
Standard detent Without detent
With push-on switch
Detector
Photo
Output
Shaft types
Operating direction
Number of pulse/
Number of detent
Push switch
（Travel
mm）
Optional
functions
Changeover angle
W
Dimensions
（mm）
D
H
Manual soldering
Soldering
Dip soldering
Reflow soldering
Operating temperature range
–30℃ to
＋85℃
Maximum operating current Resistive load）
（
Output signal
260±5℃, 5±1s
Please see P.189
–40℃ to
＋85℃
10mA
–30℃ to
＋80℃
1mA
–10℃ to
＋70℃
5mA
–40℃ to
＋85℃
10mA
12
4.5
15/30
Without
With
（1.5）
9/18
15/30
Without
With
（0.5,
1.5）
Incremental
Single-shaft
Vertical
18/18
Without
With
（1.5）
12/12
24/24
Without
15/30
With
（0.5）
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
11.7
14.2
2.0
19.2
10
350℃ max. 3s max.
260±5℃, 5±1s
260℃±5℃, 3±1s
12.4
13.2
5
12.5
11.7
5V
Outline
specifications
Electrical performance
Mechanical Environmental
performance performance
Push-on Switch
Specifications
TACT Switch
TM
Custom-
Products
Output of A and B signals, proportionate to phase difference
A signal OFF
ON
ON
Output wave
Please see P.191
B signal
OFF
Incremental
Type
Absolute
Type
CW direction
Detent stabillity point
（
When the switch is provided
）
V
1
＝V
2
＝1.5V
max.
Test circuit
R
Terminal A
R
Terminal B
5V DC
Output waveform
t
t
V
1
V
2
Sliding noise
Please see P.191
Encoder
Terminal C
ON
OFF ON
Sliding direction
Measurement condition：Rotation speed 360
û/s
t : Masking time to avoid chattering
Insulation resistance
Voltage proof
Rotational torque
Detent torque
Push-pull strength
Cold
Dry heat
Damp heat
Circuit・number of contacts
Travel mm）
（
Rating
Contact esistance
Operating life
Page
Operating force
（N）
6
＋
2.5
−
2
100MΩ min. 250V DC
300V AC for 1minute
・
7
＋
3
mN m
−
4
10±7mN m
・
12±5mN m
・
100N
–40±3℃ for 240h
85±3℃ for 240h
60±2℃, 90 to 95% RH for 240h
Single pole and single throw（Push-on）
0.5±0.3 1.5±0.5 0.5±0.3 1.5±0.5 0.5±0.3
5±2
4±2
0.5A 16V DC
（1mA
16V DC min. ratings）
4±2
5±2
1.5±0.5
At R = 10kΩ
Chattering : 3ms max.
Bounce : 2ms max.
10MΩ min. 50V DC
50V AC for 1minute
10mN m max.
・
25±15mN m
・
40±15mN m
・
At R = 5kΩ
Chattering : 3ms max.
Bounce : 2ms max.
100MΩ min. 250V DC
300V AC for 1minute
or360V
AC for 1s.
40±20mN m
・
3±2mN m
・
3
to
20mN m
・
5±3mN m
・
10±5mN m
・
80N
100N
–40±3℃ for 240h±10h
85±3℃ for 240h±10h
60±2℃, 90 to 95%RH for 240h±10h
Single pole and single throw（Push-on）
0.5
±0.3
3
＋
1.5
−
1.0
0.1A 5V DC
4±2
0.5A 16V DC
（1mA
16V DC min. ratings）
6
＋
2.5
−
2
1mA 5V DC
100mΩfor initial period; 200mΩafter operating life
30,000times min.
192
100m for initial period; 200m after operating life
Ω
Ω
20,000times min.
181
1,000,000 500,000 1,000,000 100,000
times
times
times
times
min.
min.
min.
min.
187
20,000times
min.
190
177
Wireless Connectivity
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