261
Encoders Metal
Shaft Insulated
Shaft Through
Shaft Type 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.267 for attached parts.
Refer to P.268 for product varieties.
Refer to P.270 for switch specications.
Refer to P.299 for soldering conditions.
Other varieties are also available. Please inquire.
Note
Product Line
Vertical
Less shaft
wobble
Vertical
Horizontal
Flat
20
15
20
25
20
Serrated
Flat
Without
Without
With
Without
Without
With
With
Without
With
—
—
0.5
0.5
1. 5
1. 5
—
0.5
1. 5
—
0.5
1. 5
—
0.5
1. 5
12±7
10±7
7
＋ 3
− 4
10±7
7
＋ 3
− 4
10±7
7
＋ 3
− 4
10±7
8.5±5
12±7
8.5±5
12±7
12±5
7
＋ 3
− 4
10±7
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
15
18
30
36
18
30
Without
36
Without
18
30
Without
36
Without
30
Without
30
EC11B15202AN
EC11B15242AZ
EC11B15242B1
EC11E09204A4
EC11E15204A3
EC11E1820402
EC11E09244BS
EC11E15244G1
EC11E153440D
EC11E18244AU
EC11E183440C
EC11N1520401
EC11E09244AQ
EC11N1524402
EC11E15244B2
EC11N1525404
EC11E1534408
EC11N1520402
EC11E18244A5
EC11N1524403
EC11E1834403
EC11N1525405
EC11G1560414
EC11M1565403
EC11G1574402
EC11M1575403
EC11G1564411
Product No.
Drawing
No.
Minimum order uni t（pcs.）
Japan Export
15,000
Operating life
（cycles）
Number
of detent
Number
of pulse
Shaft
configuration
Structure
Length of
the shaft
(mm)
Push-on
switch
Travel of push-
on switch（mm）
Torque
（mN・m）
Without
With
1. 5
—11
8
9
7
7
6
6
9
10
10
12
1,000 2,000
9
15
9
15
9
15
Without
18
30
18
30
18
30
EC11K0920404
EC11K1520406
EC11K0924404
EC11K1524406
EC11K0925416
EC11K1525413
100,000
With
262
Encoders Metal
Shaft Insulated
Shaft Through
Shaft Type Ring
Type
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
（Initial）
10±4
（After reflow）
3 to 30
3 to 30
15
13
16
17
18
20
800
600
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
(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
19
15 EC11EBB24C03
Flat With 1. 5
14
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 0 524×374×201
EC11E09/15/18/EC11N 1, 2 0 0 2,400
540×360×250
EC11G/EC11K/EC11M 1,000 2,000
EC11J 600 600 369×283×263
EC11E152T/U 800 1, 6 0 0 507×363×230
EC111 1, 2 0 0 2,400
5 0 7 ×3 6 3 ×216
EC11E0B/BB 700 1, 4 0 0
Refer to P.267 for attached parts.
Refer to P.268 for product varieties.
Refer to P.270 for switch specications.
Refer to P.299 for soldering conditions.
EC11 11mm Size Metal Shaft Type
263
Encoders Metal
Shaft Insulated
Shaft Through
Shaft Type 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 0.5mm / 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）
DE
DE
264
Encoders Metal
Shaft Insulated
Shaft Through
Shaft Type Ring
Type
4.5
2.5
L
B
4.5
ø6
3.5 (L
1
)
L
0.5 or 1.5
R0.5
C1
(Switch01)
(Switch02)
3.5
ℓ
9.2
7.5 max.
11.7
6 6
B
5-ø1 holes
C
12.5
2.6
7
7.5
5
5
1.5
A
E
D
BCA
ED
D E
Switch travel
4.5
2.5
L
B
4.5
ø6
3.5 (L
1
)
L
0.5 or 1.5
R0.5
C1
(Switch01)
(Switch02)
3.5
ℓ
9.2
7.5 max.
11.7
6 6
B
5-ø1 holes
C
12.5
2.6
7
7.5
5
5
1.5
A
E
D
BCA
ED
D E
Switch travel
EC11 11mm Size Metal Shaft Type
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
Dummy
terminal
4.5
2.5
L
B
4.5
ø6
3.5 (L
1
)
L
R0.5
C1
(Switch01)
3.5
ℓ
9.2
7.5 max.
11.7
6 6
B
5-ø1 holes
C
Dummy
12.5
2.6
7
7.5
5
5
1.5
A
BCA
Dummy
terminal
4.5
2.5
L
B
4.5
ø6
3.5 (L
1
)
L
R0.5
C1
(Switch01)
3.5
ℓ
9.2
7.5 max.
11.7
6 6
B
5-ø1 holes
C
Dummy
12.5
2.6
7
7.5
5
5
1.5
A
BCA
L L
1
L
B
R
19.5 15 7 5
24.5 20 10 7
L L
1
L
B
R
19.5 15 7 5
24.5 20 10 7
Dimensions Unit:mm
No. Photo Style
PC board mounting hole dimensions
（Viewed from mounting side）
6
EC11N
Vertical
7
EC11N
Vertical
with push-on switch
（travel 0.5mm / 1.5mm）
8
EC11G
Vertical
9
EC11G, EC11M
Vertical
with push-on switch
（travel 1.5mm）
10
EC11G, EC11M
Vertical
with push-on switch
（travel 1.5mm）
EC11G EC11M
EC11G EC11M
265
Encoders Metal
Shaft Insulated
Shaft Through
Shaft Type Ring
Type
1.9
1.6
6.3
4.5
5-1.3
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
R0.5
C1
Switch travel
0.5or1.5
5.05
0.5
1.3
1.8
2-R0.65
EC11J09
Type only
EC11J15
Type only
ø8.975
斜線部：はんだランド
黒塗り部：配線禁止エリア
8.28.5
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
斜線部：はんだランド
黒塗り部：配線禁止エリア
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
EC11／11mm Size Metal Shaft Type
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
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)
Mounting
surface
ø2.1Hole
10
ø5.975
4.45
C1
5.05
0.5 1.3
1.8
2-R0.65
EC11J09
Type only
EC11J15
Type only
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
0.5or1.5
5.05
0.5 1.3
1.8
2-R0.65
EC11J09
Type only
EC11J15
Type only
ø8.975
D E
8±0.1
ø9±0.05
ø8±0.05
90˚±2˚
15˚
0.1
20 teeth Serrated
7
7.5
2.6
ø5.4 hole
A C B
12.5
Dummy
5-ø1 hole
5
5
1.5
Dimensions Unit:mm
No. Photo 形状
PC board mounting hole dimensions
（Viewed from mounting side）
11
EC11K
Vertical
12
EC11K
Vertical
with push-on switch
（travel 0.5mm / 1.5mm）
13
EC11J
Reflow
14
EC11J
Reflow
with push-on switch
（travel 0.5mm / 1.5mm）
15
EC11E152T
Push-lock mechanism
with push-lock switch
ø5.975
4.45
Switch travel
0.5or1.5
Mounting
surface
ø8.975
7
10
24.5
(20)
3.5
2.5
4.5
3.5
1.2
C1
C1
(Switch01)
(Switch02) 11.7
13.1
66
ED
CB
A
ø5.975
4.45
Mounting
surface
Dummy
terminal
ø8.975
7
10
24.5
(20)
3.5
2.5
4.5
3.5
1.2
C1
C1
(Switch01)
11.7
13.1
66
ED
CB
A
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
黒塗り部：配線禁止エリア
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
黒塗り部：配線禁止エリア
5-ø1.05 hole
E
D
B
C
A
Black part : Do not solder and
no wiring for electrical contact.
Black part : Do not solder and
no wiring for electrical contact.
266
Encoders Metal
Shaft Insulated
Shaft Through
Shaft Type Ring
Type
EC11 11mm Size Metal Shaft Type
D E
Total travel
7.5 max.
6
6
11.7
26.4
6.5
2.5
9
8
3.5
(Switch01)
(Switch02)
Lock travel
3.5
9.2
A C B
D E
20 teeth Serrated
8±0.1
ø9±0.05
ø8±0.05
90˚±2˚
15˚
0.1
20 teeth Serrated
7
7.5
2.6
A C B
DE
12.5
5-ø1 hole
5
5
1.5
Dimensions Unit:mm
No. Photo Style
PC board mounting hole dimensions
（Viewed from mounting side）
16
EC11E152U
Push-lock mechanism
with push-lock switch
17
EC111
Self-return switch
18
EC111
Self-return switch
with push-on switch
（travel 0.5mm / 1.5mm）
19
EC11E
Dual-shaft type
with push-on switch
（travel 0.5mm）
Inner shaft: encoder
Outer shaft: encoder
20
EC11E
Dual-shaft type
with push-on switch
（travel 1.5mm）
Inner shaft: encoder
Outer shaft: self-return switch
ACB
77.5
2.6
12.5
5
Dummy
1.5
5-ø1 hole
5
（ ）
（ ）
77.5
2.6
12.5
5
1.5
5-ø1 hole
5
DE
ACB
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)
ACB
A' C' B'
72.5
7.5
2.6
12.5
51.5
8-ø1 hole
5
DE
ACB
A' C' B'
72.5
7.5
2.6
12.5
51.5
8-ø1 hole
5
DE
267
Encoders Metal
Shaft Insulated
Shaft Through
Shaft Type Ring
Type
EC11B / EC11E / EC11G / EC11N / EC11M 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/
EC11N/EC11M
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,
EC11N, EC11M 30 detents, 15 pulse
CW direction
Circuit Diagram
EC111/EC11E0B
Nut Washer
Unit:mm
EC11／11mm Size Metal Shaft Type
268
Encoders Metal
Shaft Insulated
Shaft Through
Shaft Type Ring
Type
2） Flat Type Unit:mm
● Detailed dimensions
L
1
L
B
ℓ
15
20
7
10
5
7
※1 Does not comply with EC111
※2 LB=7 for EC11B.
1） Serrated Type Unit:mm
● Detailed dimensions
● Detailed dimensions
L
1
L
1
L
B
ℓ
1
L
B
S
1
ℓ
1
ℓ
2
20
15 7 5
7 6 1 7
25
20 10 6
10 10 2 11
R
25 10 12
● Detailed dimensions
L
1
L
B
ℓ
15
15
20
5
7
7
7
5
（6）
10
（12）
1. Single-shaft Type
Shaft Dimensions
EC11
Style
（Shaft diameter
：φ6）
Not applicable for EC11E and EC11G
with push-lock mechanism
EC11
Style
（Shaft diameter
：φ6）
EC11K / EC11J
Style
（Shaft diameter
：φ5.975）
EC11K / EC11J
Style
（Shaft diameter
：φ6）
EC11G
Style
（Shaft diameter
：φ9）
1. The highlighted figures in shaft types refer to Product Specifications in P.261 and P.262.
2. Other varieties are also available. Please inquire.
Notes
∅7
LB
L
L1
C0.5
9
8
4.5
R
※1
Values in parentheses apply to products
without push-on switch.
※2
● Detailed dimensions
L L
1
L
B
18
25
28
13.5
20.5
23.5
5
7
10
L1
S1
0.5 or 1
LB
ø7 C1
1
ø6
18 teeth Serrated
ℓ
1
ℓ
2
11mm Size Metal Shaft Type / Product Varieties11mm Size Metal Shaft Type / Product Varieties
※
L1
0.5
1.6
LB
ø8.975 C1
ℓ1
ø6
1
18 teeth Serrated
※M7 for EC11B.
※M7 for EC11B.
※LB=7 for EC11B.
※
269
Encoders Metal
Shaft Insulated
Shaft Through
Shaft Type Ring
Type
Values in parentheses apply to products
without push-on switch.
11mm Size Metal Shaft Type / Product Varieties
※LB=7forEC11B
3） Slotted Type Unit:mm
● Detailed dimensions
L
1
15
20
25
7
7
10
L
B
● Detailed dimensions
L
1
15
20
7
10
L
B
EC11
Style
（Shaft diameter
：φ6）
EC11K / EC11J
Style
（Shaft diameter
：φ5.975）
※
※⌀7 for type with inner / outer shaft encoders (EC11EBB)
EC11E
Style
（Inner-shaft :φ3.5　Outer-shaft :φ6）
2. Standard Dimensions and Configuration of Dual-shaft Type
Flat Type Unit:mm
● Detailed dimensions
L1
ℓ
1
ℓ
2
L2LB
20
25
30
10
15
20
5
7
10
7
7
7
4
5
5
1. The highlighted figures in shaft types refer to Product Specifications in P.261 and P.262.
2. Other varieties are also available. Please inquire.
Notes
1. Single-shaft Type
Shaft Dimensions
L1
ø3.5
ø6
2.5
C0.5
ø8※
2
C0.5
LB
L2
※M7 for EC11B.
※
270
Encoders Metal
Shaft Insulated
Shaft Through
Shaft Type Ring
Type
11mm Size Metal Shaft Type / Switch Specifications
1. EC11B 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 2 second
2. EC11E/EC11N/EC111 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
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 2 second
3. EC11G/EC11M Series
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 2 second
4. EC11K/EC11J 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 1 second
5. EC11E152U Series
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 2 second
＋ 2.5
− 2
Type
Metal shaft
9mm size 11mm size
Series
EC09E EC11B EC11E EC11N
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 / 3 0
9/18
15/30 or without
18/36 or without
15 / 3 0
Features
— — Without detent
Push-lock mechanism — —
Dimensions
（mm）
W
9.5
11. 7
D
13 .7 5 12
H
4.5 5.5/6.7/7.75 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 — —
Detent torque
8 ± 5 m N・m 1 2 ± 7 m N・m 1 0 ± 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
Flat
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 0.5±0.3 1.5±0.5
Operating force （N）
　 6　　 4±2 6±3 5±2 　 6 4±2 8 max. 　 6 4±2 　 6 4±2
Rating
10 m A 5 V D C
（1mA 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
259 2 61
Encoders Soldering Conditions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 299
Encoders Cautions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 300
Notes
1. ※marked specification is only applicable to EC11E152U402.
2. ●Indicates applicability to all products in the series.
253
Encoders
List of Varieties
Encoders
Metal
Shaft Insulated
Shaft Through
Shaft Type Ring
Type
Encoders
● Metal Shaft Type
● Insulated Shaft Type
● Through Shaft Type
● Ring Type
259
276
282
285
＋ 2.5
− 2
＋ 2.5
− 2
＋ 2.5
− 2
＋ 2.5
− 2
Type
Metal shaft
11mm size
Series
EC11G EC11M
EC111 EC11K
EC11J
EM11B
Photo
Output
Incremental （Two phase A and B） Self-return switch Incremental （Two phase A and B）
Shaft types
Single-shaft
Operating direction
Vertical
Number of pulse /
Number of detent
15/30
15/without —9 / 18
15 / 3 0 16 /16
Features
Less shaft wobble — — Surface
Mount type Magnetic type
Dimensions
（mm）
W
11. 7 10 . 8
D
12 13 12 15.3 11
H
4.5 54.5 7. 5
Operating temperature range
−40℃ to +85℃ −30℃ to +85℃
Operating life
15,000 cycles 100,000 cycles
1,000,000 cycles
Automotive use
●●●●●●
Life cycle (availability)
Electrical
performance
Rating
10 m A 5 V D C
10 m A 5 V±5 % D C
Max./min. operating
current（Resistive load）
10mA /1mA 15mA / −
Insulation resistance
10 0 MΩ mi n . 25 0 V D C
10 0 MΩ mi n .10 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
Mechanical
performance
Rotational torque
（Without detent）
8 . 5 ± 5 m N・m 3 to 30mN･m — — —
Detent torque
1 2 ± 7 m N・m —12 ±5 m N･m
12±5mN･m （Initial）
10±4mN･m （After reflow）
10 ±5 m N･m
Push-pull strength
10 0 N
Shaft configuration
Serrated 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）
1. 5± 0 . 3 5
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
Operating force （N）
5±2 6　 4±2 5±2 4±2 5±2 4±2 5.5±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）
Contact resistance
100mΩ max. for initial period,　
200mΩ max. after operating life.
500mΩ max. for initial period,　
5mΩ 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
Page
261 271
Encoders Soldering Conditions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 299
Encoders Cautions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 300
Note
●Indicates applicability to all products in the series.
254
Encoders
List of Varieties
Encoders
Metal
Shaft Insulated
Shaft Through
Shaft Type Ring
Type
＋ 2.5
− 2
＋ 0.3
− 0.2
299
Encoders Metal
Shaft Insulated
Shaft Ring
Type
Through
Shaft Type
Soldering surfacetemperature
Soldering temperature
Heating time Soldering time No. of solders
EC10E, EC12D, EC12E
EM11B
EC45A
EC40A
EC09E, EC11B, EC111, EC11E, EC11G, EC11K,
EC11M, EC11N, EC18A, EC21A, EC28A, EC35A,
EC35AH, EC50A, EC60B
Series
10 0 ℃ ma x . 260±5℃2 min. max. 5 ±1s 2 times max.
10 0 ℃ ma x .
10 0 ℃ ma x .
10 0 ℃ ma x .
110 ℃ m a x .
260±5℃
260℃ max.
260℃ max.
260℃ max.
1 min. max.
1 min. max.
2 min. max.
1 min. max.
3 ±1s
3s max.
5s max.
10 s ma x .
2 times max.
2 times max.
2 times max.
1 time
Preheating Dip soldering
Reference for Dip Soldering
Example of Reflow Soldering Condition
Reference for Manual Soldering
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.
Notes
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, EC11M, EC11N, EC12D, EC12E,
EC18A, EC21A, EC28A, EC35A, EC35AH, EC40A,
EC45A, EC50A, EC60B, EM11B, EC21C, EC28C,
EC35CH
Series
350℃ max. 3s max. 1 time
3 5 0 ±10 ℃ 2 times
Tip temperature Soldering time No. of solders
＋1
　0
EC05E
EC21C
EC28C, EC35CH
EC11J
Series
260℃ 230℃ 18 0 ℃ 15 0 ℃ 2 min. max. 3s 40s 4 min. max. 2 times max.
250℃ min.
230℃ to 245℃
260℃
230℃ min.
220℃
230℃
18 0 ℃
200℃
18 0 ℃
15 0 ℃
15 0 ℃
15 0 ℃
60s to 120s
60s to 120s
2 min. min.
ー
ー
3s
30s to 40s
25s to 60s
40s
ー
300s max.
230s max.
2 times max.
1 time max.
1 time max.
A B C D E F G H No. of reflows