269
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
11mm Size Metal Shaft Type
Compact and highly reliable type available in
many varieties
EC11
■Typical Specifications
Items Specifications
Output signal　　
Two phase of A, B
Self-return switch
(EC111 / EC11E0B)
Rating
10mA 5V DC
Operating life
15,000 cycles
100,000 cycles （EC11K / EC11J）
Operating temperature range
−40℃ to ＋85℃
Refer to P.275 for product specications.
Refer to P.276 for attached parts.
Refer to P.278 for product varieties.
Refer to P.307 for soldering conditions.
Other varieties are also available. Please inquire.
Note
Product Line
Vertical
Horizontal
Flat 20
25
20
Serrated
Flat
Without
Without
With
With
ー
ー
0.5
0.5
1. 5
1. 5
0.5
1. 5
12±7
10±7
10±7
10±7
7
＋ 3
− 4
10±7
7
＋ 3
− 4
10±7
7
＋ 3
− 4
10±7
12±7
8.5±5
12±7
12±5
7
＋ 3
− 4
1
2
3
4
5
700 1, 4 0 0
1, 2 0 0 2,400
1530
9
15
18
9
15
18
9
15
18
18
30
36
18
30
Without
36
Without
18
30
Without
36
Without
EC11B15202AA
EC11B15242AE
EC11B15242AF
EC11E09204A4
EC11E15204A3
EC11E1820402
EC11E09244BS
EC11E15244G1
EC11E153440D
EC11E18244AU
EC11E183440C
EC11E09244AQ
EC11E15244B2
EC11E1534408
EC11E18244A5
EC11E1834403
EC11G1560414
EC11G1574402
EC11G1564411
Product No.
Drawing
No.
Minimum order uni t（pcs.）
Japan Export
15,000
Operating life
（cycles）
Number
of detent
Number
of pulse
Shaft
onfiguration
Structure
Length of
the shaft L1 (mm)
Push-on
switch
Travel of push-
on switch（mm）
Torque
（mN・m）
Without
With
Without
With
ー
1. 5
ー9
6
7
8
10
1,000 2,000
15
9
15
9
15
9
15
30
Without
30
18
30
18
30
18
30
EC11K0920401
EC11K1520401
EC11K0924401
EC11K1524402
EC11K0925401
EC11K1525401
100,000
Less shaft
wobble
Vertical
270
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
11mm Size Metal Shaft Type
EC11
Product Line
Other varieties are also available. Please inquire.
Note
Push lock
Reflow
Self-return
switch Flat
Slotted
25
20
26.4
20
15
Inner-
shaft=25
Outer-
s h a f t =15
Without
Without
With
With
Without
With
Without
ー
ー
8
0.5
1. 5
ー
0.5
1. 5
ー
10±7
12±5
3 to 30
3 to 30
13
11
14
15
16
18
800
300
1, 6 0 0
600
1, 2 0 0 2,400
700 1, 4 0 0
Self-
return
switch
Self-return
switch
Without
Without
EC11E152T409
EC11J0920404
EC11J152040F
EC11J0924411
EC11J1524413
EC11J0925403
EC11J1525402
EC11E152U402
EC1110120005
EC111012010H
EC1110120201
EC11E0B2LB01
20-tooth
Serrated
Flat
9
15
9
15
9
15
18
30
18
30
18
30
10±7 30
Product No.
Drawing
No.
Minimum order unit （pcs.）
Japan Export
15,000
100,000
15,000
Operating life
（cycles）
Number
of detent Number
of pulse
Shaft
configuration
Structure
Length of the shaft
L1,L2 (mm)
Push-on
switch
Travel of push-on
switch（mm）
Torque
（mN・m）
Dual-shaft
Slotted
Inner-
shaft=25
Outer-
s h a f t =15
Without
0.5
ー
17
15 EC11EBB24C03
Flat With 1. 5
12
Packing Specifications
Tray
Product No. Number of packages （pcs.）
Export package measurements
（mm）
1 case /Japan
1 case /export packing
EC11B 700 1, 4 0 0 370×520×201
EC11E09 / 15 / 18 1, 2 0 0 2,400
540×360×250
EC11G / EC11K 1,000 2,000
EC11J 300 600 369×283×263
EC11E152T / U 800 1, 6 0 0 363×507×230
EC111 1, 2 0 0 2,400
3 6 3×5 0 7 ×216
EC11E0B / BB 700 1, 4 0 0
Refer to P.275 for product specications.
Refer to P.276 for attached parts.
Refer to P.278 for product varieties.
Refer to P.307 for soldering conditions.
271
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
EC11／11mm Size Metal Shaft Type
（ ）
G
（Switch01）（Switch02）
G
（Switch01）（Switch02）
Dimensions Unit:mm
No.
3
4
Photo Style
PC board mounting hole dimensions
（Viewed from mounting side）
3.8
2.5 5-ø1 holes
13.5
1.8
5
5
2.1
Mounting
surface
B
C
A
E
D
7
7.5
2.6
A C B
12.5 Dummy
5-ø1 holes
5
5
1.5
EC11B
Horizontal
with push-on switch
（travel 1.5mm）
EC11E
Vertical
（ ）
EC11E
Vertical
with push-on switch
（travel 0.5 / 1.5mm）
5
7
7.5
2.6
A C B
DE
12.5
5-ø1 holes
5
5
1.5
1
2
C1
20
0.8
5.7
M7G0.75
11.7
2
14.1
7.25
6.5
0.8
3.5
6
7
4.5
ø6
12
5.5
（Switch01）
3.8
3-ø1 holes
13.5
1.8
5
3.7
2.1
Mounting
surface
B
C
A
3.8
2.5 5-ø1 holes
13.5
1.8
5
5
2.1
Mounting
surface
B
C
A
E
D
EC11B
Horizontal
EC11B
Horizontal
with push-on switch
（travel 0.5mm）
272
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
EC11 11mm Size Metal Shaft Type
Dimensions Unit:mm
Photo Style
No. PC board mounting hole dimensions
（Viewed from mounting side）
ø5.975
4.45
Switch travel
0.5or1.5
Mounting
surface
ø8.975
4.54.5
1.9
1.6
EC11K15
Type only
EC11K09
Type only
ø2.1hole
2-R0.8
7
10
24.5
(20)
3.5
2.5
4.5
3.5
1.2
C1
C1
(Switch01)
(Switch02)
1.6
1.9
2-R0.8
2.65
1.55
5
7.5 7
5
12.6
6
10
5
12.5
11.7
13.1
66
ED
CB
A
PC board mounting detail
A slant line part hows
the solder land black part:
Do not solder and wiring
for electrical contact
5-ø1.05holes
E
D
B
C
A
DE
6
7
EC11K
Vertical
EC11G
Vertical
EC11G
Vertical
with push-on switch
（travel 1.5mm）
EC11G
Vertical
with push-on switch
（travel 1.5mm）
EC11K
Vertical
with push-on switch
（travel 0.5mm /
1.5mm）
ø5.975
4.45
Mounting
surface
Dummy
terminal
ø8.975
R0.5
4.54.5
1.9
1.6
EC11K15
Type only
EC11K09
Type only
ø2.1hole
2-R0.8
7
10
24.5
(20)
3.5
2.5
4.5
3.5
1.2
C1
C1
(Switch01)
1.6
1.9
2-R0.8
2.65
1.55
5
7.5 7
5
12.6
6
10
5
12.5
11.7
13.1
66
ED
CB
A
Black part : Do not solder and
no wiring for electrical contact.
5-ø1.05 hole
E
D
B
C
A
ø5.975
4.45
Switch travel
0.5or1.5
Mounting
surface
ø8.975
R0.5
4.54.5
1.9
1.6
EC11K15
Type only
EC11K09
Type only
ø2.1hole
2-R0.8
7
10
24.5
(20)
3.5
2.5
4.5
3.5
1.2
C1
C1
(Switch01)
(Switch02)
1.6
1.9
2-R0.8
2.65
1.55
5
7.5 7
5
12.6
6
10
5
12.5
11.7
13.1
66
ED
CB
A
Black part : Do not solder and
no wiring for electrical contact.
5-ø1.05 hole
E
D
B
C
A
8
9
10
Mounting
surface
Mounting
surface
Mounting
surface
Dummy
terminal
Center of shaft
5-ø1
A C
ED
B hole
ø2.05 hole
2-R0.8
5
7.5 7
2.6
12.5
1.5
5
4.5
2.2
1.55
(SW01)
0.5x45°
CHAM BCA
ED
4.5
3.5
3.5
2.5
ø7
7
25
9.2
7.5max.
11.7
13.1
6 6
(20.5)
1.5
ø2
ø1.5
Center of shaft
5-ø1 hole
A C B
ø2.05 hole
2-R0.8
D E
5
7.5 7
2.6
12.5
1.5
5
1.55
2.2
4.5
(SW01) 0.5x45°
CHAM
(SW02)
Switch travel
D E
A C B
4.5
3.5
3.5
2.5
7
ø7
25
1.5
1.5
66
13.1
11.7
7.5max.
9.2
(20.5)
ø1.5
ø2
Center of shaft
5-ø1
A C
ED
B hole
ø2.05 hole
2-R0.8
5
7.5 7
2.6
12.5
1.5
5
1.55
2.2
4.5
(SW01)
0.5x45°
CHAM
(SW02)
Switch travel
D E
A C B
4.5
3.5
3.5
2.5
7
ø7
25
1.5
1.5
66
13.1
11.7
7.5max.
9.2
(20.5)
ø2
ø1.5
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
D E
D E
Mounting
surface
Mounting
surface
Mounting
surface
Dummy
terminal
Center of shaft
5-ø1
A C
ED
B hole
ø2.05 hole
2-R0.8
5
7.5 7
2.6
12.5
1.5
5
4.5
2.2
1.55
(SW01)
0.5x45°
CHAM BCA
ED
4.5
3.5
3.5
2.5
ø7
7
25
9.2
7.5max.
11.7
13.1
6 6
(20.5)
1.5
ø2
ø1.5
Center of shaft
5-ø1 hole
A C B
ø2.05 hole
2-R0.8
D E
5
7.5 7
2.6
12.5
1.5
5
1.55
2.2
4.5
(SW01) 0.5x45°
CHAM
(SW02)
Switch travel
D E
A C B
4.5
3.5
3.5
2.5
7
ø7
25
1.5
1.5
66
13.1
11.7
7.5max.
9.2
(20.5)
ø1.5
ø2
Center of shaft
5-ø1
A C
ED
B hole
ø2.05 hole
2-R0.8
5
7.5 7
2.6
12.5
1.5
5
1.55
2.2
4.5
(SW01)
0.5x45°
CHAM
(SW02)
Switch travel
D E
A C B
4.5
3.5
3.5
2.5
7
ø7
25
1.5
1.5
66
13.1
11.7
7.5max.
9.2
(20.5)
ø2
ø1.5
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
D E
D E
Mounting
surface
Mounting
surface
Mounting
surface
Dummy
terminal
Center of shaft
5-ø1
A C
ED
B hole
ø2.05 hole
2-R0.8
5
7.5 7
2.6
12.5
1.5
5
4.5
2.2
1.55
(SW01)
0.5x45°
CHAM BCA
ED
4.5
3.5
3.5
2.5
ø7
7
25
9.2
7.5max.
11.7
13.1
6 6
(20.5)
1.5
ø2
ø1.5
Center of shaft
5-ø1 hole
A C B
ø2.05 hole
2-R0.8
D E
5
7.5 7
2.6
12.5
1.5
5
1.55
2.2
4.5
(SW01) 0.5x45°
CHAM
(SW02)
Switch travel
D E
A C B
4.5
3.5
3.5
2.5
7
ø7
25
1.5
1.5
66
13.1
11.7
7.5max.
9.2
(20.5)
ø1.5
ø2
Center of shaft
5-ø1
A C
ED
B hole
ø2.05 hole
2-R0.8
5
7.5 7
2.6
12.5
1.5
5
1.55
2.2
4.5
(SW01)
0.5x45°
CHAM
(SW02)
Switch travel
D E
A C B
4.5
3.5
3.5
2.5
7
ø7
25
1.5
1.5
66
13.1
11.7
7.5max.
9.2
(20.5)
ø2
ø1.5
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
D E
D E
Mounting
surface
Mounting
surface
Mounting
surface
Dummy
terminal
Center of shaft
5-ø1
A C
ED
B hole
ø2.05 hole
2-R0.8
5
7.5 7
2.6
12.5
1.5
5
4.5
2.2
1.55
(SW01)
0.5x45°
CHAM BCA
ED
4.5
3.5
3.5
2.5
ø7
7
25
9.2
7.5max.
11.7
13.1
6 6
(20.5)
1.5
ø2
ø1.5
Center of shaft
5-ø1 hole
A C B
ø2.05 hole
2-R0.8
D E
5
7.5 7
2.6
12.5
1.5
5
1.55
2.2
4.5
(SW01) 0.5x45°
CHAM
(SW02)
Switch travel
D E
A C B
4.5
3.5
3.5
2.5
7
ø7
25
1.5
1.5
66
13.1
11.7
7.5max.
9.2
(20.5)
ø1.5
ø2
Center of shaft
5-ø1
A C
ED
B hole
ø2.05 hole
2-R0.8
5
7.5 7
2.6
12.5
1.5
5
1.55
2.2
4.5
(SW01)
0.5x45°
CHAM
(SW02)
Switch travel
D E
A C B
4.5
3.5
3.5
2.5
7
ø7
25
1.5
1.5
66
13.1
11.7
7.5max.
9.2
(20.5)
ø2
ø1.5
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
0.1
∅9±0.03
15°
∅8±0.05
8±0.1
90°±2°
D E
D E
ø5.975
4.45
Mounting
surface
ø8.975
4.54.5
1.9
1.6
EC11K15
Type only
EC11K09
Type only
ø2.1hole
2-R0.8
7
10
24.5
(20)
3.5
2.5
4.5
3.5
1.2
C1
C1
(Switch01)
Dummy terminal
1.6
1.9
2-R0.8
2.65
1.55
5
7.5 7
5
12.6
6
10
5
12.5
11.7
13.1
66
ED
CB
A
PC board mounting detail
A slant line part hows
the solder land black part:
Do not solder and wiring
for electrical contact
11.3
5-ø1.05 hole
E
D
B
C
A
273
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
EC11／11mm Size Metal Shaft Type
Dimensions Unit:mm
Photo Style
No. PC board mounting hole dimensions
（Viewed from mounting side）
7.5 max.
6
6
11.7
25
5.1
2.5
9
8
20 teeth Serrated
3.5
(Switch01)
Dummy terminal Lock travel
Total travel
3.5
9.2
A C B
8±0.1
ø9±0.05
ø8±0.05
90˚±2˚
15˚
0.1
20 teeth Serrated
11
12
EC11J
Reow
EC11J
Reow
with push-on switch
（travel 0.5mm / 1.5mm）
13
14
EC11E152T
Push-lock mechanism
EC11E152U
Push-lock
mechanism
with push-lock
switch
EC111
Self-return switch
15
7
7.5
2.6
ø5.4 hole
A C B
12.5
Dummy
5-ø1 holes
5
5
1.5
7
7.5
2.6
A C B
DE
12.5
5-ø1 holes
5
5
1.5
ACB
77.5
2.6
12.5
5
Dummy
1.5
5-ø1 holes
5
（ ）
DE
Total travel
7.5 max.
6
6
11.7
26.4
6.5
2.5
9
8
20 teeth Serrated
3.5
(Switch01)
(Switch02)
Lock travel
3.5
9.2
A C B
DE
8±0.1
ø9±0.05
ø8±0.05
90˚±2˚
15˚
0.1
20 teeth Serrated
1.9
1.6
6.3
4.5
8.2
5-1.3
8.5
4
5-2.4
5
9
10
12.6
12.5
19
16.5
5.5
13
7.5
2-R0.8
E
D
B
C
A
ø2.1Hole
5.05
0.5
1.3
1.8
2-R0.65
EC11J09
Type only
EC11J15
Type only
1.9
1.6
6.3
4.5
8.2
5-1.3
8.5
4
5-2.4
5
9
10
12.6
12.5
19
16.5
5.5
13
7.5
2-R0.8
E
D
B
C
A
ø2.1hole
5.05
0.5
1.3
1.8
2-R0.65
EC11J09
Type only
EC11J15
Type only
3
15
18
8.1
A
D
BC
E
1.45
1.95
(20)
24.5
7
4.5
1.2
C1
(Switch01)
Mounting
surface
10
ø5.975
4.45
C1
ø8.975
(Dummy
terminal)
PC board mounting detail
A slant line part hows
the solder land black part:
Do not solder and wiring
for electrical contact
1.9
1.6
6.3
4.5
8.2
5-1.3
8.5
4
5-2.4
5
9
10
12.6
12.5
19
16.5
5.5
13
7.5
3
11.7
15
18
8.1
2-R0.8
E
D
B
C
A
A
D
BC
E
1.45
1.95
(20)
24.5
7
4.5
1.2
C1
(Switch01)
(Switch02)
Mounting
surface
ø2.1hole
10
ø5.975
4.45
C1
Switch travel
0.5 or 1.5
5.05
0.5 1.3
1.8
2-R0.65
EC11J09
Type only
EC11J15
Type only
ø8.975
D E
A slant line part:The solder land
Black part: Do not solder and wiring for electrical contact
A slant line part:The solder land
Black part: Do not solder and wiring for electrical contact
274
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
EC11 11mm Size Metal Shaft Type
Dimensions Unit:mm
No. Photo Style
PC board mounting hole dimensions
（Viewed from mounting side）
（ ）
16
77.5
2.6
12.5
5
1.5
5-ø1 holes
5
DE
ACB
EC111
Self-return switch
with push-on switch
（travel 0.5mm / 1.5mm）
17
ACB
A' C' B'
72.5
7.5
2.6
12.5
51.5
8-ø1 holes
5
DE
EC11E
Dual-shaft type
with push-on switch
（travel 0.5mm）
Inner shaft: encoder
Outer shaft: encoder
3.5 8.5 25
7
15
7
1.5
5
2.5
C0.5 C0.5
2.5
2
7.5 max. 7
ø6
ø8
ø3.5
11.7
A C B
A' C' B'
9.2
6 6
3.5
Switch travel
D E
(Switch01)
(Switch02)
(Switch03)
18
ACB
A' C' B'
72.5
7.5
2.6
12.5
51.5
8-ø1 holes
5
DE
EC11E
Dual-shaft type
with push-on switch
（travel 1.5mm）
Inner shaft: encoder
Outer shaft: self-return
switch
275
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
EC11／11mm Size Metal Shaft Type
EC11B / EC11E / EC11G EC11E / EC11J / EC11K
Output Wave
×
×
ø12
ø7.2
0.5
EC11B Series
5V DC
RR
Terminal B
Terminal A
Terminal C
Encoder
Test circuit
tt
V1
V2
5V
ON ONOFF
Output waveform
Sliding direction
t : Masking time to avoid chattering
Measurementcondition：Rotationspeed360˚/s
Sliding Noise
EC11B
EC11E / EC11G
EC11J / EC11K
V1=V2=1.5V max.
At R ＝ 5k
Ω
Chattering：2ms max.
Bounce ：2ms max.
V1=V2=1.5V max.
At R ＝ 5k
Ω
Chattering：3ms max.
Bounce ：2ms max.
V1=V2=2.5V max.
At R ＝ 5k
Ω
Chattering：3ms max.
Bounce ：2ms max.
The following parts are included with the product.
11mm Size Metal Shaft Type / Attached Parts
A signal
B signal
Detent stability position
OFF ON
ONOFF
Detent stability position cannot be specified
for B signal.
EC11E 18 detents 9 pulse
EC11E 36 detents 18 pulse
EC11J, EC11K
CW direction
A signal
B signal
Detent stability position
OFF ON
ONOFF
EC11B, EC11E, EC11G
30 detents, 15 pulse
A signal
B signal
Detent stability point
ON OFF
OFF
ON
EC11B 20 detents, 20 pulse
CW direction
CW direction
Circuit Diagram
EC111/EC11EOB
Nut Washer
Unit:mm
276
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
1. Single-shaft Type
1） Serrated Type Unit:mm
● Detailed dimensions
L
1
L
B
S
1
R1R2
20 7 6 1 7
25 10 10 211
Not applicable for EC11E
and EC11G with push-lock
mechanism
EC11
Configuration
（Shaft diameter
：
φ6）
EC11K / EC11J
Configuration
（Shaft diameter
：
φ6）
L1
LB
R
ø6
C1
ø7
Shaft Dimensions
L1
S1
0.5 or 1
LB
ø7 C1
R1
1
R2
ø6
20 teeth Serrated
● Detailed dimensions
L
1
L
B
R1
15 7 5
20 10 6
LB1.6
ø6
C0.5
1
L1
ø7
3） Slotted Type Unit:mm
● Detailed dimensions
L
1
15
20
25
7
7
10
L
B
※ LB=7 for EC11B.
EC11K / EC11J
Configuration
（Shaft diameter
：
φ5.975）
EC11
Configuration
（Shaft diameter
：
φ6）
● Detailed dimensions
L
1
15
20
7
10
L
B
※
2） Flat Type Unit:mm
● Detailed dimensions
L
1
L
B
R
15
15
20
5
7
7
7
5
（6）
10
（12）
25 10 12
※1 Does not comply with EC111
※ 2 LB=7 for EC11B.
EC11
Configuration
（Shaft diameter
：
φ6）
EC11K / EC11J
Configuration
（Shaft diameter
：
φ5.975）● Detailed dimensions
L
1
L
B
R
15
20
7
10
5
7
※1
※2
Values in parentheses apply to products
without push-on switch.
L
1
0.5
LB
ø8.975
C1
ℓ1
ø6
20 teeth Serrated
R
1. The highlighted figures in shaft types refer to Product Specifications in P.269 and P.270.
2. Other varieties are also available. Please inquire.
Notes
11mm Size Metal Shaft Type / Product Varieties
277
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
2. Standard Dimensions and Configuration of Dual-shaft Type
L1
ø3.5
ø6
2.5
C0.5
ø8
2
C0.5
R2
LB
L2
R1
1） Flat Type Unit:mm
Configuration
（Inner-shaft :φ3.5　Outer-shaft :φ6）
● Detailed dimensions
L1R1R2
L2LB
20
25
30
10
15
20
7
10
7
7
7
4
5
5
1. The highlighted figures in shaft types refer to Product Specifications in P.270.
2. Other varieties are also available. Please inquire.
Notes
※⌀7 for type with inner / outer shaft encoders (EC11EBB)
※
11mm Size Metal Shaft Type / Product Varieties
Type of Shaft Length
EC11G
∅7
LB
L
L1
C0.5
9
8
4.5
● Detailed dimensions
L L
1
L
B
18
25
28
13.5
20.5
23.5
5
7
10
Unit:mm
278
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
1. EC11B Series
2. EC11E/EC111 Series
3. EC11G Series
Switch type
Momentary push switch
Contact arrangement
Single pole and single throw （Push-on）
Travel（mm）
0.5
＋ 0.4
− 0.3
1.5±0.5
Operating force
6±3N 5±2N
Operating life
25,000 times 20,000 times
Electrical
performance
Rating
0.1A 5V DC (500μA 5V DC min. ratings）
Contact resistance
100mΩ max. for initial period,　200mΩ max. after operating life.
Insulation resistance
100MΩ min. 250V DC
Voltage proof
300V AC for 1 minute or 360V AC for 2s
Switch type
Momentary push switch
Contact arrangement
Single pole and single throw （Push-on）
Travel（mm）
0.5±0.3 1.5±0.5
Operating force
6 N 4±2N
Operating life
20,000 times
Electrical
performance
Rating
0.1A 5V DC (500μA 5V DC min. ratings）
Contact resistance
100mΩ max. for initial period,　200mΩ max. after operating life.
Insulation resistance
100MΩ min. 250V DC
Voltage proof
300V AC for 1 minute or 360V AC for 2s
Switch type
Momentary push switch
Contact arrangement
Single pole and single throw （Push-on）
Travel（mm）
1.5±0.35
Operating force
5±2N
Operating life
20,000 times
Electrical
performance
Rating
0.15A 5V DC (500μA 5V DC min. ratings）
Contact resistance
100mΩ max. for initial period,　200mΩ max. after operating life.
Insulation resistance
100MΩ min. 250V DC
Voltage proof
300V AC for 1 minute or 360V AC for 2s
＋ 2.5
− 2
11mm Size Metal Shaft Type/Switch Specifications
279
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
4. EC11K/EC11J Series
5. EC11E152U Series
Switch type
Momentary push switch
Contact arrangement
Single pole and single throw （Push-on）
Travel （mm）
0.5±0.3 1.5±0.5
Operating force
5±2N 4±2N
Operating life
1,000,000 times 100,000 times
Electrical
performance
Rating
0.1A 5V DC (0.1mA 5V DC min. ratings）
Contact resistance
100mΩ max. for initial period,　200mΩ max. after operating life.
Insulation resistance
100MΩ min. 250V DC
Voltage proof
300V AC for 1 minute or 360V AC for 1s
Switch type
Push lock mechanism switch
Contact arrangement
Single pole and single throw （Push-on）
Travel （mm）
8±0.8
Operating force
8N max.
Operating life
10,000 times
Electrical
performance
Rating
0.1A 5V DC (500μA 5V DC min. ratings）
Contact resistance
100mΩ max. for initial period,　200mΩ max. after operating life.
Insulation resistance
100MΩ min . 250V DC
Voltage proof
300V AC for 1 minute or 360V AC for 2s
11mm Size Metal Shaft Type
/Switch Specifications
262
Encoders
List of Varieties
Encoders
Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
Type
Metal shaft
9mm size 11mm size
Series
EC09E EC11B EC11E EC11G
Photo
Output
Incremental （Two phase A and B ）
Shaft types
Single-shaft Dual-shaft Single-shaft
Operating direction
Vertical Horizontal Vertical
Number of pulse /
Number of detent
15 / 30
9 / 18
15 / 30 or without
18 / 36 or without
15 / 30 or without
Features
— — Without detent
Push-lock mechanism — Less shaft wobble
Dimensions
（mm）
W
9.5
11.7
D
13.8 12
H
4.5 5.5 4.5 8 / 8.5 4.5
Operating temperature range
−40℃ to＋85℃
Operating life
15,000 cycles
Automotive use
● ● ● ●
Life cycle (availability)
Electrical
performance
Rating
10 m A 5 V D C
Max./min. operating
current（Resistive load）
10mA / 1mA
Insulation resistance
10 0 MΩ mi n . 25 0 V D C
Voltage proof
300V AC for 1 minute or
360V AC for 1s
300V AC for 1 minute or 360V AC for 2s
Mechanical
performance
Rotational torque
（Without detent）
— — 7
＋ 3
− 4
m N・m —8 . 5 ± 5 m N・m
Detent torque
8 ± 5 m N・m 1 2 ± 7 m N・m 1 0 ± 7 m N・m 1 2 ± 7 m N・m
Push-pull strength
10 0 N
Shaft configuration
Flat Flat, Slotted, Serrated　
I n n e r - s h a f t ： F l a t
O u t e r - s h a f t ： S l o t t e d
Serrated
Terminal type
Insertion
Switch
Specifications
Switch type
Push-on switch
Push-lock
mechanism
switch ※
Push-on switch
Contact
arrangement
Single pole and single throw （Push-on）
Travel （mm）
0.5±0.3 1.5±0.5 0.5
＋ 0.4
− 0.3
1.5±0.5 0.5±0.3 1.5±0.5 8±0.8 0.5±0.3 1.5±0.5 1. 5± 0 . 3 5
Operating force （N）
6
＋ 2.5
− 2
4±2 6±3 5±2 6
＋ 2.5
− 2
4±2 8 max. 6
＋ 2.5
− 2
4±2 5±2
Rating
10mA 5V DC
（500μA 5V DC min. ratings）
0.1A 5V DC （500μA 5V DC min. ratings）
Contact resistance
100mΩ max. for initial period; 200mΩ max. after operating life.
Operating life
10,000 times 25,000
times 20,000 times 10,000
times 20,000 times
Page
267 269
Encoders Soldering Conditions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 307
Encoders Cautions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 308
Notes
1. ※marked specification is only applicable to EC11E152U402.
2. ●Indicates applicability to all products in the series.
Type
Metal shaft
11mm size 20mm size
Series
EC111 EC11K
EC11J
EM11B EC20A/RK203 EM20B
Photo
Output
Self-return switch Incremental （Two phase A and B）
Shaft types
Single-shaft
Operating direction
Vertical
Number of pulse /
Number of detent
—9 /18
15 / 3 0 16 /16 18 /18 40/40
Features
— — Surface
Mount type Magnetic type —Magnetic type
Dimensions
（mm）
W
11. 7 10 . 8 20.2 20
D
13 12 14 . 2 11 19 . 2 22.25
H
54.5 7. 5 10 13
Operating temperature range
−40℃ to +85℃ −30℃ to +85℃ −30℃ to +80℃ −10℃ to +70℃
Operating life
15,000 cycles 100,000 cycles
1,000,000 cycles
30,000 cycles 500,000 cycles
Automotive use
●●●●●—
Life cycle (availability)
Electrical
performance
Rating
10 m A 5 V D C
10 m A 5 V±5 % D C
1m A 5 V D C
10 m A 5 V±5 % D C
Max./min. operating current
（Resistive load）
10mA / 1mA 15mA / − —15mA / −
Insulation resistance
10 0 MΩ mi n . 25 0 V D C
10 0 MΩ mi n .10 0 V D C 10 MΩ m in . 5 0 V DC
10 0 MΩ mi n . 25 0 V D C
Voltage proof
300V AC for 1 minute
or 360V AC for 2s
300V AC for 1 minute
or 360V AC for 1s
250V AC for 1 minute
or 300V AC for 2s
50V AC for 1 minute
or 60V AC for 2s
300V AC for 1 minute
or 360V AC for 2s
Mechanical
performance
Rotational torque
（Without detent）
3 to 30mN･m ————7mN･m max.
Detent torque
—12 ±5 m N･m
12±5mN･m （Initial）
12±4mN･m （After reflow）
10 ±5 m N･m 40±20mN･m 8±5mN･m
Push-pull strength
10 0 N
Shaft configuration
Flat, Slotted, Serrated Flat
Terminal type
Insertion Reflow Insertion
Switch
Specifications
Switch type
Push-on switch
Contact
arrangement
Single pole and single throw （Push-on）
Travel （mm） 0.5±0.3
1.5±0.5
0.5±0.3
1.5±0.5
0.5±0.3
1.5±0.5 0.5 1.5±0.5 0.5
Operating force （N）
6　 4±2 5±2 4±2 5±2 4±2 5.5±3 4±2 6±3
Rating
0.1A 5V DC
（500μA 5V DC min. ratings）
0.1A 5V DC
（0.1mA 5V DC min. ratings）
5mA 5V DC
（50mA 12V DC max. ratings）
0.5A 16V DC
（1mA 16V DC min. ratings）
3 A 16 V D C
（10mA 16V DC min. ratings）
Contact resistance
100mΩ max. for initial period,　
200mΩ max. after operating life.
500mΩ max. for initial period,　
5mΩ max. after operating life.
100mΩ max. for initial period,　
200mΩ max. after operating life.
Operating life
20,000 times
1,000,000
times
100,000
times
1,000,000
times
100,000
times
1,000,000 times 20,000 times 25,000 times
Page
269 280 282 285
Encoders Soldering Conditions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 307
Encoders Cautions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 308
Note
●Indicates applicability to all products in the series.
263
Encoders Metal
Shaft Insulated
Shaft Hollow
Shaft Ring
Type
＋ 2.5
− 2
＋ 0.4
− 0.3
＋ 0.3
− 0.2
NEW
307
Encoders Metal
Shaft Insulated
Shaft Ring
Type
Hollow
Shaft
Soldering surfacetemperature
Soldering temperature
Heating time Soldering time No. of solders
EC10E, EC12D, EC12E, EM11B
EC45A
EC40A
EM20B
EC09E, EC11B, EC111, EC11E, EC11G,
EC11K, EC18A, EC21A, EC28A, EC35A,
EC35AH, EC35B, EC50A, EC60B
Series
10 0 ℃ ma x . 260±5℃2 min. max. 5 ±1s 2 time max.
10 0 ℃ ma x .
10 0 ℃ ma x .
110 ℃ m a x .
80℃ max.
260±5℃
260℃ max.
260℃ max.
260℃ max.
1 min. max.
2 min. max.
1 min. max.
1 min. max.
3 ±1s
5s max.
10 s ma x .
3s max.
2 time max.
2 time max.
1 time
2 time max.
Preheating Dip soldering
Reference for Dip Soldering
Example of Reflow Soldering Condition
Reference for Manual Soldering
EC05E
EC21C
EC11J
Series
260℃ 230℃ 18 0 ℃ 15 0 ℃ 2 min. max. 3s 40s 4 min. max. 2 time max.
250℃ min.
230℃ to 245℃
230℃ min.
220℃
18 0 ℃
200℃
15 0 ℃
15 0 ℃
60s to 120s
60s to 120s
ー
ー
30s to 40s
25s to 60s
ー
300 max.
2 time max.
1 time max.
A B C D E F G H No. of reflows
Temperature profile
1. When using an infrared reflow oven, solder may sometimes not be applied. Be sure to use a hot air reflow oven or a
　 type that uses infrared rays in combination with hot air.
2. The temperatures given above are the maximum temperatures at the terminals of the encoder when
employing a hot air reflow method. The temperature of the PC board and the surface temperature of the
　 encoder may vary greatly depending on the PC board material, its size and thickness. Ensure that the surface
　 temperature of the encoder does not rise to 250℃ or greater.
3. Conditions vary to some extent depending on the type of reflow bath used. Be sure to give due consideration to this
　 prior to use.
注記
300
200
100
A
B
C
Time (s)
G max.
F max.
H max.
E max.
Room
temperature
Temperature (˚C )
Pre-heating
D
Encoders Soldering Conditions
3 s
EC11J
EC05E, EC09E, EC10E, EC111, EC11B,
EC11E, EC11G, EC11K, EC12D, EC12E,
EC18A, EC21A, EC28A, EC35A, EC35AH,
EC35B, EC40A, EC45A, EC50A, EC60B,
EM11B, EM20B, EC21C
Series
350℃ max. 3s max. 1 time
3 5 0 ±10 ℃ 2 time
Tip temperature Soldering time No. of solders
＋1
　0