Encoder
20mm Size Metal Shaft Magnetic Type
EM20B
Series
Highly reliable non-contact structure applicable to 31-point LED level indicator mounting.
Detector
Push
Rating
Slide
Operating life
Rotary
Encoders
Power
Dual-in-line
Package Type
TACT Switch
TM
Typical Specifications
Items
Specifications
5V±5% DC
500,000rotations
Product Line
Actuator
length
（mm）
15.5
40
16
10
8±5
40
Vertical
With
（Switch
operating
With
force 6±3）
（Color：
orange）
Torque
（mN
m） Number of
・
Rotational
torque
Detent
torque
detent
Without
Number Operating Push switch Display Response Minimum
order unit
of pulse direction
（N）
function
time
（pcs.）
Product No.
EM20B4000000
Drawing
No.
Custom-
Products
7 max.
Without
Without
1.3μsec.
（TYP）
480
EM20B4014000
EM20B4014A01
EM20B4010000
1
2
3
Incremental
Type
Absolute
Type
Notes
1. This product uses a Hall IC. Be aware of ESD damages.
2. Custom design for shaft configuration and mount height are available upon request.
Dimensions
No.
without switch type
20
C0.5
ø9
2.6
11.1
15.5
5.5
13
3.9 Snap-in
Unit:mm
Style
PC board mounting hole dimensions
（Viewed
from mounting side）
ø21.5
9.5
11.5
1 0 .2
1
1.5
2.4
ø4
3
7.5
1
3.5
1.8
B
6-ø0.6 holes
A G
A
V
A
G
B
V
B
2.5 4
VA, VB
MMM
Power supply
GA, GB
MMM
Ground
A, B
MMMMMMMM
Out put
29. 25˚
200
ALPS [ ALPS ELECTRIC CO.,LTD. ]
