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EC28A1870401 Datasheet(PDF) 1 Page - ALPS ELECTRIC CO.,LTD.

Part # EC28A1870401
Description  28mm Size Ring Type
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Manufacturer  ALPS [ALPS ELECTRIC CO.,LTD.]
Direct Link  http://www.alps.com
Logo ALPS - ALPS ELECTRIC CO.,LTD.

EC28A1870401 Datasheet(HTML) 1 Page - ALPS ELECTRIC CO.,LTD.

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298
EC28A 28mm Size Ring Type
A low-profile unit with 4mm height and
good operation feel
■ Typical Specifications
Items
Specifications
Rating
10mA 5V DC
Operating life
50,000 cycles
Operating temperature range
−40℃ to ＋85℃
Refer to P.307 for soldering conditions.
Product Line
30
18
15
18
Product No.
Actuator length
（mm）
Number of
detent
Number of
pulse
400
800
15
Detent torque
（mN・m）
12±7
20±10
12±7
20±10
EC28A1550401
EC28A1850402
7±5
EC28A1520401
EC28A1560401
EC28A1870401
Minimum order unit（pcs.）
Japan
Export
Dimensions
Unit:mm
Style
3-7.5
3-4
ø28
3.5
15
4
1.5
10.75
A
B
C
120$
ø17
PC board mounting hole dimensions
(Viewed from mounting side)
1.6
28.9
5
3-ø1 hole
2-ø1.5 hole
C B
A
5V DC
RR
Terminal B
Terminal A
Terminal C
Encoder
Test circuit
tt
V1
V2
ON
ON
OFF
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
A signal
B signal
ON
ON
OFF
OFF
Detent stability position
CW direction
Sliding Noise
V1=V2=2.5V max.
At R = 5kΩ
Chattering : 5ms max. Bounce : 5ms max.
Output Wave
EC28A15
*Signal A and signal B output
at detent positions cannot be
specified.
EC28A18
Number of packages（pcs.）
Export package measurements
（mm）
1 case /Japan
1 case /export packing
400
800
366×509×287
Packing Specifications
Tray


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