Datasheet

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
(3) Color of Pushbutton
Contact
SPST-NO
• Minimum applicable load: 1 mA at 5 VDC
• Standard load models are not available.
• If PCB terminals are required, use the Socket
Symbol
R
Y
G
W
Color
Red
Yellow
Green
White
• All models are illumination only.
Colored-illumination models are not available.
given under Accessories on page 3.
• Non-lighted models are not available.
Momentary operation: Self-resetting
Alternate operation: Self-holding
• 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
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Ordering Information
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
Degree of
protection
Operation
Model number
Momentary
A3DJ-90A1-00E@
Alternate
A3DJ-90B1-00E@
Momentary
A3DA-90A1-00E@
Color symbol for
Pushbutton
Minimum
packing unit
R, Y, G, W
10 pcs
A3DJ (Rectangular)
24.5
9.5
9
14
A3DA (Square)
24.5
9.5
IP40
9
Alternate
A3DA-90B1-00E@
Momentary
A3DT-90A1-00E@
Alternate
A3DT-90B1-00E@
A
3
D
9
A3DT (Round)
24.5
9.5
9 dia.
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
Switch
A3DA-500R
A3DA-500Y
A3DA-500GY
A3DA-500W
Sealing
A3DT-500R
A3DT-500Y
A3DT-500GY
A3DT-500W
10 pcs
IP40
Appearance Rectangle
Square
Round
Minimum
packing
unit
Contact
type
Operating
action
Terminal
type
Momentary
Solder
terminals
A3DJ-7111
A3DA-7111
A3DT-7111
Alternate
Solder
terminals
A3DJ-7121
A3DA-7121
A3DT-7121
SPST-NO
Ordering set combinations: Refer to this page.
10 pcs
■ Specifications: Refer to page 3. ■ Dimensions: Refer to page 6.
■ Accessories: Refer to page 3.
2
A3D
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Ordering Information
Accessories (Order Separately)
Name
Appearance
Model
Remarks
Minimum
packing unit
Wire-wrap terminal
A3D-4101
PCB terminal
A3D-4102
Solder terminal
A3D-4103
Insulation Cover
---
A3D-3002
Cannot be used together with the
Socket.
Tightening Tool
---
A3D-3004
Do not tighten to a torque exceeding
0.29 N·m.
10 pcs
One milky-white Legend Plate is included with standard products.
100 pcs
Socket
A
3
D
Classification
Legend Plate
Rectangular
A3DJ-5201
Square
A3DA-5201
Round
A3DT-5201
Cannot be used together with Insulation Cover.
100 pcs
Specifications
Ratings
Characteristics
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
Built-in LED Lamp
(Ta=25°C)
Electrical
Contact resistance
(initial value)
Insulation resistance
Red
Yellow
(White) *2
Green
Reference
value (V) *1
1.7
2.2
2.1
Maximum value
(V)
2.0
2.5
2.5
Reference
value (mA)
20
20
20
Absolute maximum
value (mA)
50
50
50
Permissible
dissipation,
PD
Absolute maximum
value (mW)
100
125
122
Reverse
voltage, VR
Absolute maximum
value (V)
4
4
4
Color of LED Lamp
Forward
voltage, VF
Forward
current, IF
Operating Mechanical
frequency
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.
Dielectric
strength
Vibration
resistance
Between terminals of
same polarity
Between terminals of
different polarity
Between each terminal
and ground
Between lamp terminals
Malfunction
Destruction
Shock
resistance Malfunction
Durability
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
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/s2 max.
150 m/s2 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)
*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
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Specifications
Operating Characteristics
Contact Form
Operating force
OF max.
2.45 N
Release force
RF min.
0.196 N
Total travel
TT
Contact name
SPST-NO
Approx. 3.5 mm
Locktravel alternate * LTA min.
0.5 mm
Pretravel
2.5 mm
PT max.
Contact form
COM
NO
* Alternate operation models only.
Engineering Data
An external resistor is required. (Refer to page 8.)
LED Characteristics (VF -IF Characteristics)
100
Ta: Ambient Temperature
50
Green LED
100
Ta: Ambient Temperature
50
5
5
Ta=25°C
Ta=0°C
Ta=50°C
100
5
Ta=25°C
Ta=50°C
Ta=50°C
Ta=0°C
1
1
1
0.5
0.5
0.5
0.1
1.2
1.4
1.6
1.8
2.0
2.2
2.4
VF (V)
0.1
1.0
Ta: Ambient Temperature
50
10
10
10
IF (mA)
Yellow or White LED
IF (mA)
IF (mA)
Red LED
A
3
D
1.5
2.0
2.5
3.0
3.5
VF (V)
0.1
1.0
1.5
Ta=25°C
Ta=0°C
2.0
2.5
3.0
3.5
VF (V)
IF (mA)
Forward Current Reduction Curve
60
45mA
25°C
40
25mA
55°C
20
0
-10
0
10
20
30
40
50
60
TA (°C)
4
A3D
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Nomenclature
Model Structure
Color cap
(1) Shape of Pushbutton
(2) Color of Pushbutton
Legend plate
(milky white)
Pushbutton
Reflective
plunger
A
3
D
LED
Switch
(3) Switch
Specifications
Note: The A3DJ model is shown here as a representative example.
Type
(1)
5
Shape of Pushbutton
Rectangular Square
(A3DJ)
(A3DA)
Specifications
Round
(A3DT)
------
(2)
LED-lighted
Red, Yellow, Green, White
The LED lamp is built into the Pushbutton.
(3)
Microload
0.1 A at 30 VDC
(Minimum applicable load: 1 mA at 5 VDC)
A3D
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Dimensions
(Unit: mm)
Rectangular Models
A3DJ
5.8
Panel Cutouts
(TOP VIEW)
18
9.5
0.8
6
8+0.2
0 dia.
4.8
0.4
M8 × 0.75
1.6
9
10 min.
0.3
5.5
7.4
Note: Recommended panel thickness: 1.0 to 3.2 mm.
24.5
12.4
14
Square Models
A3DA
9.5
5.8
0.8
6
M8 × 0.75
A
3
D
Panel Cutouts
(TOP VIEW)
18
4.8
8+0.2
0 dia.
10 min.
0.4
1.6
9
15 min.
0.3
Note: Recommended panel thickness: 1.0 to 3.2 mm.
5.5
7.4
7.4
24.5
9
Round Models
A3DT
9.5
5.8
Panel Cutouts
(TOP VIEW)
18
0.8
6
4.8
8+0.2
0 dia.
10 min.
0.4
M8 × 0.75
1.6
0.3
Note: Recommended panel thickness: 1.0 to 3.2 mm.
5.5
9 dia.7.4 dia.
24.5
If the panel is to be finished (e.g., coated), make sure that
the panel meets the specified dimensions after the coating.
Terminals
Type
SPST-NO Lighted Models
Terminals
Terminal Arrangement
(Bottom View)
0.8
6.5
Solder Terminals
t0.4
L-
0.8×2
LED terminal (t0.3)
1.6
C
NO
L+
2
0.8
0.8
6
A3D
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Dimensions
(Unit: mm)
Accessory Mounting Dimensions
Socket Mounting Dimensions
Wire-wrap Terminal/A3D-4101
PCB Terminal/A3D-4102
Solder Terminal/A3D-4103
1
30.7
3.5
30.7
16.5
1.9
0.3
0.6
1.6
1 9 dia.
5
30.7
16.5
16.5
16.5
6.1 9 dia.
0.3
1.6 6.1 9 dia.
1.9
1
0.3
1.9
0.3
0.6
1.6
6.1
1.6 6.1
1.9
A
3
D
PCB Cutout
(BOTTOM VIEW)
6.5 Four, 0.8 dia.
6.5
Insulation Cover Mounting Dimensions (The illustration shows the rectangular model as a representative example.)
• After securing the Switch to the panel using the mounting nut, pass
A3D-3002
the lead wires through the holes in the Insulation Cover before
performing wiring. Hold the Insulation Cover so that the cylindrical
hole is facing the Switch, and insert the lead wires from the end with
the barriers.
• After wiring is completed, mount the Insulation Cover by pushing it
into the Switch.
31
18
8.9 dia.
Note: Unless specified, there is a tolerance of ± 0.4 mm for dimensions.
Legend Plate Mounting Dimensions
Rectangular/A3DJ-5201
Square/A3DA-5201
Round/A3DT-5201
0.8
5.8
10.7
5.3
5.8
5.8
5.8 dia.
Note: 1. The thickness is 0.8 mm.
2. Since the legend plate is made of polycarbonate, use alcohol-based paints such as melanin, phthalic acid, or acrylic paint when marking the legend.
7
A3D
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Safety Precautions
Refer to Safety Precautions for All Pushbutton Switches/Indicators.
Precautions for Correct Use
Calculation Example for Limiting Resistance
• Always make sure that the power is turned OFF before mounting,
removing, or wiring the Switch, or performing maintenance. Electric
shock or fire may occur.
• Do not tighten the mounting ring excessively using pliers or a
similar tool. Excessive tightening may damage the mounting ring.
(Tightening torque: 0.20 to 0.29 N·m)
Wiring
• When wiring, use wires of a size appropriate for the applied voltage
and carry current. Perform soldering correctly under the conditions
given below. Using the Switch with the wires soldered incorrectly
may cause the terminals to become abnormally hot and cause a
fire.
1. Hand soldering:
Soldering iron tip temperature: 350°C max. within 3 seconds.
2. Dip soldering: At 350°C within 3 seconds.
Wait for one minute after soldering before exerting any external
force on the solder.
• Use a non-corrosive rosin liquid for the flux.
• Perform wiring so that the wire sheaths do not come into contact
with the Switch. If this is unavoidable, use wires that can withstand
temperatures of 100°C min.
After wiring to the Switch has been completed, ensure an
appropriate insulation distance.
LED
• The polarity of the LED is indicated on the back of the Switch. Wire
the LED correctly according to the polarity.
• The built-in LED does not have a limiting resistor. Connect a limiting
resistor.
• Make sure that the limiting resistor satisfies the characteristics of
the built-in LED. The forward current of the built-in LED must be 8
mA minimum.
• The resistance can be calculated by using the following expression.
E-VF (Ω)
E : Operating voltage (V)
R=-----------IF
VF : LED forward voltage (V)
IF : LED forward current (A)
LED lamp illuminating color: Red
E = 24V
IF = 20mA
Ta = 25°C
The VF-IF characteristics (for red) on page 4 yield the following:
VF = 1.7 V when IF = 20 mA.
Therefore, inserting the values into the formula above (R = E − VF/IF(Ω)):
R = 24 (V) − 1.7 (V)/0.02 (A) ≅ 1100 (Ω).
The recommended resistance is 1.1 kΩ at 1 W (2 × IF2R).
Note: Approximately twice this value is appropriate to provide a
margin in the capacity of the resistor.
A
3
D
Operating Environment
• Ensure that dust, metal powder, or oil do not enter the interior of the
Switch.
Using Microloads
• Using a standard load switch for opening and closing a microload
circuit may cause wear on the contacts. Use the switch within the
operating range. (Refer to the diagram below.) Even when using
microload models within the operating range shown below, if inrush
current occurs when the contact is opened or closed, it may cause
the contact surface to become rough, and so decrease life
expectancy. Therefore, insert a contact protection circuit where
necessary.
The minimum applicable load is the N-level reference value. This
value indicates the malfunction reference level for the reliability
level of 60% (λ 60) (conforming to JIS C5003). The equation,
λ 60 = 0.5 x 10−6/times indicates that the estimated malfunction rate
is less than 1/2,000,000 with a reliability level of 60%.
Voltage (V)
Mounting
26mA 100mA
0.15mA
30
24
Standard
load area
Microload area
Recommended Values for Limiting Resistance
Voltage
5 VDC
Red
Yellow (White)
Green
165 Ω
140 Ω
145 Ω
12 VDC
515 Ω
490 Ω
495 Ω
24 VDC
1,100 Ω
1,090 Ω
1,095 Ω
Note: The above values are calculated values that can be used as reference.
12
Invalid
area
5
0
0.1
100mA 150mA
1mA
1
10
100
1,000
Current (mA)
8
A3D
Lighted Pushbutton Switch (Cylindrical 8-dia.)
Application
Mounting and Replacing the Pushbutton
Socket Mounting
(1) Mounting Direction for the Pushbutton and Switch
Curved claw
Projection
(Pushbutton)
(Switch)
A
3
D
• Align the curved claw on the outside of the protruding part of the
Pushbutton with the projection on the upper part of the Switch and
insert.
• Apply a pressure between 9.8 and 24.5 N.
• If the terminals of the LED lamp become bent, it may be impossible
to fit them into the LED lamp terminal holes. Ensure that the
terminals are straight when they are inserted.
Be sure to insert the lamp terminals for round models (A3DT or
M2DT) with the correct orientation. Inserting the terminals with the
reverse orientation will result in damage.
(2) Removing the Pushbutton
Recessed
portions
• Hold the recessed portions on the cap of the Pushbutton and pull.
• Do not use tools such as pliers to remove the Pushbutton as this
may damage the cap.
Panel Mounting
Using the Mounting Nut
• Insert the Switch from the front of the panel. Mount the mounting
nut from the terminal end of the Switch and tighten it.
• Tighten the nut to a torque 0.20 to 0.29 N·m.
• If soldering is used, mount the mounting nut first. Lead wires and
mounds of solder may make it impossible to mount the nut after
soldering.
Mounting nut
Panel
9
• After securing the Switch to the panel using the mounting nut, insert
the Socket into the Switch.
• When inserting the Socket, align the positioning groove of the
Socket with the projecting part of the Switch.
Panel
Projecting part of Switch
Positioning groove of Socket
A3D
Lighted Pushbutton Switch (Cylindrical 8-dia.)
A
3
D
• Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product.
• Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad
systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious
influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or
equipment, and be sure to provide the system or equipment with double safety mechanisms.
Note: Do not use this document to operate the Unit.
OMRON Corporation
Electronic and Mechanical Components Company
Contact: www.omron.com/ecb
Cat. No. A031-E1-07
1014(0207)(O)
10
Similar pages