Incremental
Type
Absolute
Type
202
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
Multi Control
Devices
TACT SwitchTM
Custom-
Products
21mm Size Hollow Shaft Type
EC21A Series
Hollow-center shaft encoder with 4mm height contribute to space saving and multifunctioning.
Contributes to add flexibility in set design
Excellent operation feel when rotating.
●
●
Features
For various types of controlling in DVD players/recorders, car AV
equipment and home audio equipment
For level controlling in telephones, facsimile machines, industrial
wireless radios and various communication devices
●
●
Applications
Encoder
No.
10mA 5V DC
50,000cycles
Rating
Items Specifications
Operating life
Without load
With load 50,000cycles
Typical Specifications
Product Line
Vertical
9
16±7
30
18
15
9
Without
EC21A1520401
EC21A0920401
Product No.
1
2
No.
Push-on
switch
Operating
direction
Actuator
length
（mm）
Detent torque
（mN・m）
Number of
detent
Number of
pulse
600
Minimum packing
unit（pcs.）
1.5
2
90°
C
AB
22.316
2.6
1.8
2
2.6
23.6
16.6
23.2
3–ø1 holes
ø1.5 hole
90°
5
Dimensions Unit:mm
PC board mounting hole dimensions
（Do not wire the shaded area）
1.5
90°
C
AB
22.3
2.6
2.6
23.6
16.6
23.2
3–ø1 holes
90°
5
Style
1
2
Refer to P.213 for product specifications.
°
°
°
°
°
°
°
°
Incremental
Type
Absolute
Type
213
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
Multi Control
Devices
TACT SwitchTM
Custom-
Products
Reflow
soldering
Type
Items
Operating temperature range
Rating
Electrical
performance
Mechanical
performance
Durability
Environmental
performance
Output voltage
Insulation resistance
Voltage proof
Detent torque
Terminal strength
Vibration
Operating life without load
Operating life with load
Cold
Dry heat
Damp heat
Resistance
to
soldering
heat
Manual
soldering
Dip
soldering
Actuator
strength
Pushing
direction
Pulling
direction
Product Specifications
–10℃to＋60℃
10mA 5V DC 1mA 5V DC
–40℃to＋85℃
SRGP20
SRGPWJ
EC28A
10mA 5V DC
7±3mN･m
13±4mN･m
6.5±4mN･m
40N
40N
40N
40N
10 to 55 to 10Hz/min., the amplitude is 1.5mm for all the frequencies,
in the 3 direction of X, Y and Z for 2 hours respectively
–20±2℃
for 96h
–20±2℃
for 96h
85±2℃
for 96h
40±2℃,
90 to 95%RH
for 96h
50,000cycles
50,000cycles
85±2℃
for 96h
40±2℃,
90 to 95% RH
for 96h
85±2℃
for 96h
40±2℃,
90 to 95% RH
for 96h
5±2.5mN･m
2±1mN･m
3.5±1mN･m
20N
20N
–40±2℃
for 96h
50,000cycles
50,000cycles
–20±2℃
for 96h
100,000cycles
100,000cycles
350±5℃,
3s max.
Please see P.215
SRGP30FSRGP40
EC21A
100MΩmin.
250V DC
100MΩmin.
250V DC
100MΩmin. 100V DC 100MΩmin.
100V DC
100MΩmin.
100V DC
100V AC for 1minute 300V AC
for 1minute
100V AC
for 1minute
300V AC
for 1minute
100V AC
for 1minute
16±7mN･m
12±7mN･m
20±10mN･m
5N for 1minute
100N
100N
100N
100N
–40±2℃
for 240h
–40±2℃
for 240h
85±2℃
for 240h
60±2℃,
90 to 95% RH
for 240h
85±2℃
for 240h
60±2℃,
90 to 95% RH
for 240h
350±10℃,
3s
＋1
0
350℃max,
3s max
350±10℃,
3s
＋1
0
350℃max,
3s max
350±10℃,
3s
＋1
0
260±5℃, 5±1s
1V max.
at 5V DC,
1mA
（resistive load）
2.5V max.
at 5V DC,
1mA
（resistive load）
2.5V max.
at 5V DC,
1mA
（resistive load）
Measuring
terminal
Measuring
circuit
5V
5KΩ
1V max.
at 5V DC,
1mA
（resistive load）
Measuring
terminal
Measuring
circuit
5V
5KΩ
Measuring
terminal
Measuring
circuit
5V
5KΩ
F
The operating temperature range for automotive applications can be raised upon request. Please contact us for
requirements of this kind.
Note
1V max.
at 5V DC,
1mA
（resistive load）
Hollow Shaft Type Encoders
