Hollow Shaft Type
SRGA
Series
Hollow shaft vertical encoders deliver increased ease of use.
Detector
Push
Slide
Rotary
Encoders
Power
Dual-in-line
Package Type
TACT Switch
TM
Encoder
Typical Specifications
Items
Rating
（max.）
（min.）
/
（Resistive
load）
Contact resistance
（Initial/After
operating life）
Without load
Operating life
With load
10,000cycles 0.1A 12V DC）
（
Specifications
0.1A 12V DC/50BA 3V DC
1Ω max./1Ω max.
10,000cycles
Product Line
Torque
(mN m)
・
Operating
direction
Output
code
Positions
8
20±10
Vertical
Without
detent
Gray
24
15˚
13
Reflow
900
SRGAR10100
12
Changeover
angle
45˚
30˚
Type
Minimum order
unit（pcs.）
Product No.
SRGAV80601
Drawing
No.
Custom-
Products
Standard
（hollow
shaft）
1,680
SRGAVC0301
SRGAVQ1100
1
2
Taping Specification (Taping Packaging)
Incremental
Type
Absolute
Type
Reel Size
Unit:mm
Number of packages pcs.）
（
Series
1 reel
1 case
/Japan
1 case
/export packing
Tape width
（mm）
SRGAR10100
¿380
33.4
300
300
600
32
Notes
1. Products other than those listed in the above chart are also available. Please contact us for details.
2. Please contact us for automotive use products.
3. Please place purchase orders per minimum order unit (integer).
206
Encoder
Metal Shaft Type
SRGA
Series
Dimensions
No.
2.7
8
1.7
0.5
Unit:mm
Style
18
4.8
¿3.1
ø1.55 hole
ø1.5 hole
PC board mounting hole dimensions
（Viewed
from the Direction A）
Detector
Push
Slide
ø1.55 hole
6-ø0.9 holes
2.5
a
1
1
2.1
18
11
A
11
¿7
※
42C 135
2.5
3
2.5 2.5
17.5
8.8
8.8
Rotary
Encoders
Power
Dual-in-line
Package Type
1
3.5
PC board mounting face
hole
17
16.4
ø5
2.05
2
18.2
18
ø3.1
3
.1
ø2
ø1.5
12
c
1
7
5
5
.5
ø1
TACT Switch
TM
Custom-
Products
12
2.05
Deepness 6 min.
ø2
Ground term.
3
5.5
1.5
14
18
11.7
13
17
6-1.6 holes
2
4
7
5
Incremental
Type
Detail of
a
Standard
1.5
1
R0
.5
Unit:mm
Note
※45
of SRGAV80601 and
5
of SRGAVC0301 are dummy terminals.
Absolute
Type
Standard Code Viewed from Direction A
）
（
SRGA
Number of
positions
24
Code
Gray
12
Te
8
rm
Pos
itio
ina
n
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
l
● ●
● ●
1
● ●
● ●
● ●
● ●
● ● ● ●
2
● ● ● ●
● ● ● ●
● ● ● ● ● ● ● ●
3
● ● ● ●
4
5
SRGAR
Number of
positions
● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
● ● ● ● ● ● ● ●
Code
Gray
13
Te
Pos
rm
itio
ina
n
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
l
●
● ●
● ●
1
● ●
2
● ● ●
● ● ● ●
3
4
● ● ● ● ● ●
● ● ● ● ●
● ● ●
●
The marks show the ON position.
※For
terminal alignment, please refer to the illustration.
※Please
note that there might be ON output of the dummy terminal in the circuit design.
207
Encoders
List of Varieties
Type
Series
Absolute type
With Knob
SRRQ
Metal shaft
SRGH
Hollow shaft
SRGA
Jog-shuttle
SRGPHJ
Detector
Photo
Push
Output
Shaft types
Operating
direction
Number of pulse/
Number of detent
Push switch
（Travel
mm）
Optional
functions
Changeover
angle
W
Dimensions
（mm）
D
H
Manual soldering
Soldering
Dip soldering
Reflow soldering
Operating temperature range
Initial contact
resistance
Electrical
performance
Shuttle
part
Jog part
Insulation resistance
Voltage proof
Rotational torque
Terminal strength
Resistance to
direction
soldering
Push
heat
direction
Vibration
Cold
Dry heat
Damp heat
Page
202
Rotational
Absolute type
With knob
Vertical/Horizontal
Single-shaft
Hollow shaft
Vertical
Single-shaft/
Dual-shaft
Slide
Rotary
Encoders
Note
The operating temperature range for automotive applications can be raised upon request. Please contact us for
requirements of this kind.
Outline
specifications
Mechanical performance
Environmental
performance
Without
Power
Shuttle part:All angles rotation 160°
Jog part:All angles rotation 360°
35
22.5°, 36°
14.4
15.6
7.5
300
±
10
℃
, 3
＋1
0
40°, 12.8°
20
15°, 24°, 30°, 45°
Dual-in-line
Package Type
TACT Switch
TM
Custom-
Products
18
19
10.5
s
350
±
10
℃
, 3
260±5℃, 10±1s
Please see P.209
½10℃
to
＋60℃
½40℃
to
＋85℃
1Ω max.
4V min. at 1mA 5V DC
（resistive
load）
Measuring
5K½
circuit
Measuring
terminal
＋1
0
43.7
8
s
8.6
300
±
10
℃
, 3
＋1
0
s
260±5℃, 5±1s
½10℃
to
＋60℃
Incremental
Type
Absolute
Type
Output
voltage
5V
100MΩ min. 100V DC
100V AC for 1minute
Shall be in accordance with individual specifications.
5N for 1minute
0.6 N m
・
5N
100N
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
½20±2℃
for 96h
85±2℃ for 96h
40±2℃, 90 to 95%RH for 96h
204
206
208
179
Encoders
Soldering Conditions
Example of Reflow Soldering Condition
1. Heating method: Double heating method with infrared heater.
2. Temperature measurement: Thermocouple 0.1 to 0.2φ CA
（K）
CC
or
（T）
soldering portion
at
（copper
foil surface） A heat resisting tape
.
should be used for fixed measurement.
3. Temperature profile
300
A max.
B
200
D
E
100
Detector
Push
Slide
Rotary
Encoders
Power
Room
temperature
Pre-heating
F max.
C
Temperature (ûC )
Time (s)
Dual-in-line
Package Type
TACT Switch
TM
Custom-
Products
Series Reflow type）
（
SRGP30
SRGP30
SRGAR10100
A
（℃）
max.
240
260
240
B
（℃）
230
C
（s）
20
40
D
（℃）
150
180
160
E
（℃）
（
F s）
150
120
220
30
Notes
1. The condition mentioned above is the temperature on the mounting surface of a PC board. There are cases where
the PC board's temperature greatly differs from that of the switch, depending on the PC board's material, size,
thickness, etc. The above-stated conditions shall also apply to switch surface temperatures.
2. Soldering conditions differ depending on reflow soldering machines. Prior verification of soldering condition is
highly recommended.
Incremental
Type
Absolute
Type
Attached Parts
The following parts are included with the product.
SRGH Series
Hexagonal nut
11
2
Unit:mm
Flat washer
ø14
ø9.1
0.5
M9×0.75
209
