310
Encoders Metal
Shaft Insulated
Shaft Ring
Type
Hollow
Shaft
Composite operation device that
integrates both ring encoder and self return switch
35mm Size Composite Operation Type
EC35B
Product Line
30 15 Self-return
switch
Product No.
Switch
Actuator length（mm） Number of
detent
Number of
pulse
300 60021. 3 5
Detent torque
（mN・m）
2 0 ±10 EC35B154H401
Minimum order unit （pcs.）
Japan Export
3-3.1
ø19.6
C
【Switch 02】
E
F
D
BA
9.9
12
3535
12
ø35
ø15.1
19.5
【Switch 01】
4.8
2-3.45
3-6.5
3-6
3-3
12.1
6-3.5
21.35
37.25
Shaft travel
2.8
Clockwise rotation
Normal case:(SW01)ENCODER output signal
B-C
Between terminals
A-C
Between terminals
15ø pulse／30 detent
OFF
ON
OFF
ON
From 15° past the center to the CCW end
From 15° past the center to the CW end
CCW direction:ON between F and D
CW direction:ON between F and E
Self-return case:(SW02)circuit
E
F
D
Total rotation angle 48°
center
Dimensions Unit:mm
Style
PC board mounting hole dimensions
(Viewed from mounting side)
■Typical Specifications
Items Specifications
Rating
10mA 5V DC
Operating life
Encoder
30,000 cycles
Self-return switch
15,000 cycles
Operating temperature range
−40℃ to ＋85℃
Output Wave （Switch 01） Sliding Noise （Switch 01） Circuit Diagram
（Switch 02）
V1=V2=2.5V max. Self-return switch
D F
Total rotation angle 48°
Center
E
At R = 5kΩ
Chattering
: 5ms max.　
Bounce
: 5ms max.
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
A signal
B signal ON
ON
OFF
OFF
Detent stability position
CW direction
Refer to P.315 for soldering conditions.
Number of packages （pcs.）Export package measurements
（mm）
1 case /Japan
1 case /export packing
300 600 54 0×360×380
Packing Specifications
Tray
Type
Ring type
35mm size 40mm size 45mm size 50mm size 60mm size
Series
EC35CH EC35B EC40A EC45A EC50A EC60B
Photo
Output
Incremental
（ Three phase A, B and C）
Incremental
（Two phase A and B ）
/Self-return switch
Incremental
（Two phase A and B ）
Absolute type Incremental
（Two phase A and B ）
Shaft types
Ring type
Number of pulse /
Number of detent
6×A B C / 18 15 / 3 0 15 / 3 0 31 positions 9 /18 15 / 3 0
Dimensions
（mm）
W
35.2 35 40.4 44.5 50.8 62.4
D
36 37 43 45 50 60
H
4.5 12 .1 96.5 7. 5
Operating temperature range
−40℃ to ＋90℃ −40℃ to ＋85℃
Operating life
50,000 cycles 30,000 cycles 40,000 cycles
Automotive use
●●●●●●
Life cycle (availability)
Electrical
performance
Rating
10 m A 5 V D C 0.5mA 5V DC 1m A 5 V D C 10 m A 5 V D C
Max./min. operating
current （Resistive load）
10mA / 1mA ————
Insulation resistance
10 0MΩ m in. 2 5 0 V DC 10 MΩ mi n . 5 0 V D C 10 MΩ mi n .
250V DC
10 0MΩ mi n .
250V DC
Voltage proof
3 0 0V A C f or 1m i nu t e
or 360V AC for 1s
50V AC for
1 minute
50V AC for 1 minute
or 60V AC for 2s
300V AC for 1 minute
or 360V AC for 1s
Mechanical
performance
Detent torque
2 2 ±11m N ･ m
（Initial）
18±7mN･m
（After reflow）
2 0 ±10 m N ･ m 2 0 ±11m N ･ m
40±16mN･m 36±16mN･m 4 0 ±1 4 m N ･ m 4 0 ±10 m N ･ m
Push-pull
strength
Push
10 0 N
Pull
10 0 N 50N 10 0 N
Shaft configuration
Ring type
Terminal type
Insertion
Switch
Specifications
Switch type
—Self-return switch ————
Contact
arrangement
—Single pole and
double throw ————
Travel （mm）
—2.8±0.5 ————
Operating force （N）
—3 . 8 ±1. 5 ————
Switch ON position
—15°±5° ————
Rotational torque
—4 0 ± 2 5 m N・m ————
Rating
—10 m A 5 V D C ————
Contact resistance
—200mΩ max. ————
Operating life
—15,000 cycles ————
Page
308 310 3 11 312 313 314
Encoders Soldering Conditions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 315
Encoders Cautions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 316
Note
●Indicates applicability to all products in the series.
273
Encoders Metal
Shaft Ring
Type
Insulated
Shaft Hollow
Shaft
NEW
315
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 times 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 m a x .
3s max.
2 times max.
2 times max.
1 time
2 times max.
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.
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, 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