A3D
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Lighted Pushbutton Switch with
Cylindrical 18-mm
×
8-dia. Body
• Excellent illumination with even surface brightness.
• Cylindrical body means panel cutouts can be made easily.
• Combines miniature design with excellent operating sensitivity.
RoHS Compliant
A
3
D
Refer to
Safety Precautions for All Pushbutton Switches/Indicators
and
Safety Precautions
on page 8.
List of Models
Appearance
Model
Rectangular
A3DJ
Square
A3DA
Round
A3DT
Model Number Legend
..... The model numbers used to order sets of Units are illustrated below. One set comprises the Pushbutton (LED
lamp built-in) and Switch.
For information on combinations, refer to
Ordering Information.
(1)
(2)
(3)
A3D J -90 A 1-00E R
(1) Shape of Pushbutton (2) Switch Specifications
Microload (30 VDC, 0.1 A)
Symbol
Shape
J
A
T
Rectangular
Square
Round
Symbol
A
B
Terminals
Solder
Operation
Momentary
Alternate
Contact
SPST-NO
(3) Color of Pushbutton
Symbol
R
Y
G
W
Color
Red
Yellow
Green
White
• Minimum applicable load: 1 mA at 5 VDC
• Standard load models are not available.
• If PCB terminals are required, use the Socket
given under Accessories on page 3.
Momentary operation: Self-resetting
Alternate operation: Self-holding
• All models are illumination only.
Colored-illumination models are not available.
• Non-lighted models are not available.
• An external resistor is required. (Refer to page 8.)
■
Specifications: Refer to page 3.
■
Dimensions: Refer to page 6.
■
Accessories: Refer to page 3.
■
Precautions for correct use and safety precautions: Refer to page 8.
1
A3D
Ordering Information
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Ordering as a Set
................................. The model numbers used to order sets of Units are given in the following table. One set comprises
the Pushbutton (LED lamp built-in), and Switch.
Appearance
A3DJ (Rectangular)
24.5
9.5
Degree of
protection
Operation
Model number
Color symbol for
Pushbutton
Minimum
packing unit
Momentary
A3DJ-90A1-00E@
9
14
Alternate
A3DJ-90B1-00E@
A3DA (Square)
24.5
9.5
Momentary
IP40
Alternate
A3DA-90A1-00E@
R, Y, G, W
A3DA-90B1-00E@
10 pcs
A
3
D
9
9
A3DT (Round)
24.5
9.5
Momentary
A3DT-90A1-00E@
9
dia.
Alternate
A3DT-90B1-00E@
Note: 1. Enter the desired color symbol for the Pushbutton in
@.
2. All the above are solder-terminal, microload, SPST-NO, LED lamp-lighted models.
Ordering Individually
......................... Pushbuttons and Switches can be ordered separately. Combinations that are not available as sets
can be created using individual Units.
Ordering: Specify a model number from the following table.
Pushbutton
(LED built-in)
Appearance Rectangular
Square
Round
Minimum
packing unit
Color of
pushbutton
Red
Yellow
Green
White
A3DJ-500R
A3DJ-500Y
A3DJ-500GY
A3DJ-500W
A3DA-500R
A3DA-500Y
A3DA-500GY
A3DA-500W
A3DT-500R
A3DT-500Y
A3DT-500GY
A3DT-500W
10 pcs
Switch
Sealing
Appearance Rectangle
Square
IP40
Round
Minimum
packing
unit
Contact
type
Operating
action
Momentary
Terminal
type
Solder
terminals
Solder
terminals
A3DJ-7111
A3DJ-7121
A3DA-7111
A3DA-7121
A3DT-7111
10 pcs
A3DT-7121
SPST-NO
Alternate
Ordering set combinations: Refer to this page.
■
Specifications: Refer to page 3.
■
Dimensions: Refer to page 6.
■
Accessories: Refer to page 3.
2
A3D
Ordering Information
Accessories (Order Separately)
Name
Appearance
Classification
Wire-wrap terminal
Socket
PCB terminal
Solder terminal
Insulation Cover
---
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Model
A3D-4101
A3D-4102
A3D-4103
A3D-3002
Remarks
Minimum
packing unit
Cannot be used together with Insula-
tion Cover.
100 pcs
Cannot be used together with the
Socket.
A
3
D
Tightening Tool
---
A3D-3004
Do not tighten to a torque exceeding
0.29 N·m.
10 pcs
Rectangular
Legend Plate
Square
Round
A3DJ-5201
A3DA-5201
A3DT-5201
One milky-white Legend Plate is in-
cluded with standard products.
100 pcs
Specifications
Ratings
Contact Rating: 30 VDC, 0.1 A (Minimum Applicable Load: 5 VDC, 1 mA)
Note: Minimum allowable load: 5 VDC 1 mA (Resistive)
The ratings given above are for testing under the following conditions:
(1) Ambient temperature: 20
±
2°C
(2) Ambient humidity: 65
±
5%RH
(3) Operating frequency: 20 times/minute
Characteristics
Operating Mechanical
frequency
Electrical
Contact resistance
(initial value)
Insulation resistance
Between terminals of
same polarity
Between terminals of
different polarity
Between each terminal
and ground
Between lamp ter-
minals
Malfunction
Momentary operation models:
120 operations/minute max.
Alternate operation models:
60 operations/minute max.
*1
20 operations/minute max.
100mΩ max.
100 MΩ min.
(at 500 VDC with insulation tester)
1,000 VAC, 50/60 Hz for 1 min
2,000 VAC, 50/60 Hz for 1 min
2,000 VAC, 50/60 Hz for 1 min
1,000 VAC, 50/60 Hz for 1 min
*2
10 to 55 Hz, 1.5 mm double
amplitude
*3
500 m/s
2
max.
150 m/s
2
max.
*3
Momentary operation models:
1,000,000 operations min.
Alternate operation models:
100,000 operations min.
*1
100,000 operations min.
−10°C
to +55°C
(with no icing or condensation)
35% to 85%RH
−25°C
to +65°C
(with no icing or condensation)
IEC IP40
Approx. 3 g
Class II
175
3 (IEC60947-5-1)
Built-in LED Lamp
Color of LED Lamp
Reference
value (V)
*1
Maximum value
(V)
Reference
value (mA)
Absolute maximum
value (mA)
Absolute maximum
value (mW)
Absolute maximum
value (V)
Red
1.7
2.0
20
50
100
4
Yellow
(White)
*2
2.2
2.5
20
50
125
4
(Ta=25°C)
Green
2.1
2.5
20
50
122
4
Forward
voltage, V
F
Dielectric
strength
Forward
current, I
F
Permissible
dissipation,
PD
Reverse
voltage, V
R
Vibration
resistance
Destruction
Shock
resistance Malfunction
Mechanical
Electrical
Ambient operating temperature
Ambient operating humidity
Ambient storage temperature
Degree of protection
Weight
Electric shock protection class
PTI (proof tracking index)
Pollution degree
Note: The built-in LED lamp has no limiting resistor and so it is necessary to
connect an external resistor within the range shown in the above table.
(For details of calculation formulas, refer to page 8.)
*1. Refer to Engineering Data on page 4.
*2. The same LED lamp is used for both yellow illumination and white
illumination and so the ratings are the same.
Durability
*1. With alternate operation models, one operation cycle consists of set and
reset operations.
*2. The figure is for when the LED lamp is not mounted.
*3. Indicates malfunctions of less than 1 ms.
3
A3D
Specifications
Operating Characteristics
Operating force
Release force
Total travel
Pretravel
OF max.
RF min.
TT
PT max.
2.45 N
0.196 N
Approx. 3.5 mm
0.5 mm
2.5 mm
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Contact Form
Contact name
SPST-NO
Contact form
COM
NO
Locktravel alternate
*
LTA min.
* Alternate operation models only.
Engineering Data
An external resistor is required. (Refer to page 8.)
LED Characteristics (VF -IF Characteristics)
Red LED
I
F
(mA)
100
Ta: Ambient Temperature
50
Yellow or White LED
I
F
(mA)
100
Ta: Ambient Temperature
50
Green LED
I
F
(mA)
100
50
Ta: Ambient Temperature
A
3
D
10
5
Ta=50°C
1
0.5
Ta=25°C
Ta=0°C
10
5
Ta=50°C
1
0.5
Ta=25°C
Ta=0°C
10
5
Ta=50°C
1
0.5
Ta=25°C
Ta=0°C
0.1
1.2
1.4
1.6
1.8
2.0
2.2
2.4
V
F
(V)
0.1
1.0
1.5
2.0
2.5
3.0
3.5
V
F
(V)
0.1
1.0
1.5
2.0
2.5
3.0
3.5
V
F
(V)
Forward Current Reduction Curve
I
F
(mA)
60
45mA
25°C
40
25mA
55°C
20
0
-10
0
10
20
30
40
50
60
T
A
(°C)
4
A3D
Nomenclature
Model Structure
Lighted Pushbutton Switch (Cylindrical 8-dia.)
(1) Shape of Pushbutton
(2) Color of Pushbutton
Color cap
Pushbutton
A
3
D
Legend plate
(milky white)
Reflective
plunger
LED
Switch
(3) Switch
Specifications
Note: The A3DJ model is shown here as a representative example.
Type
Shape of Pushbutton
Rectangular Square
(A3DJ)
(A3DA)
Round
(A3DT)
Specifications
(1)
------
(2)
(3)
LED-lighted
Red, Yellow, Green, White
Microload
The LED lamp is built into the Pushbutton.
0.1 A at 30 VDC
(Minimum applicable load: 1 mA at 5 VDC)
5
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