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A D 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. List of Models lamp built-in) and Switch. For information on combinations, refer to Ordering Information. RoHS Compliant Refer to Safety Precautions for All Pushbutton Switches/Indicators and Safety Precautions on page 8. Appearance Model Rectangular A3DJ Square A3DA Round A3DT A3D J -90 A 1-00E R (2) Switch Specifications Microload (30 VDC, 0.1 A)  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 (3) Color of Pushbutton  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.) Symbol Terminals Operation Contact A Solder Momentary SPST-NOB Alternate Symbol Color RR e d Y Yellow G Green WW h i t e (1) Shape of Pushbutton Symbol Shape J Rectangular A Square T Round (3)(2)(1) ■ 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.

A3D Lighted Pushbutton Switch (Cylindrical 8-dia.) A D

Ordering Information

the Pushbutton (LED lamp built-in), and Switch. 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. can be created using individual Units. Ordering: Specify a model number from the following table. Appearance Degree of protection Operation Model number Color symbol for Pushbutton Minimum packing unit A3DJ (Rectangular) IP40 Momentary A3DJ-90A1-00E@ R, Y, G, W 10 pcs Alternate A3DJ-90B1-00E@ A3DA (Square) Momentary A3DA-90A1-00E@ Alternate A3DA-90B1-00E@ A3DT (Round) Momentary A3DT-90A1-00E@ Alternate A3DT-90B1-00E@ Pushbutton (LED built-in) Appearance Color of pushbutton Rectangular Square Round Minimum packing unit Red A3DJ-500R A3DA-500R A3DT-500R 10 pcsYellow A3DJ-500Y A3DA-500Y A3DT-500Y Green A3DJ-500GY A3DA-500GY A3DT-500GY White A3DJ-500W A3DA-500W A3DT-500W Switch Sealing IP40 Minimum packing unit Appearance Rectangle Square Round Contact type Operating action Terminal type SPST-NO Momentary Solder terminals A3DJ-7111 A3DA-7111 A3DT-7111 10 pcs Alternate Solder terminals A3DJ-7121 A3DA-7121 A3DT-7121 24.5 9.5 24.5 9.5 24.5 9.5 9 dia. Ordering set combinations: Refer to this page. ■ Specifications: Refer to page 3. ■ Dimensions: Refer to page 6. ■ Accessories: Refer to page 3.

A3D Lighted Pushbutton Switch (Cylindrical 8-dia.) A D Accessories (Order Separately) 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 Built-in LED Lamp (Ta=25°C) 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. Characteristics *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. Name Appearance Classification Model Remarks Minimum packing unit Socket Wire-wrap terminal A3D-4101 Cannot be used together with Insula- tion Cover. 100 pcs 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 Legend Plate Rectangular A3DJ-5201 One milky-white Legend Plate is in- cluded with standard products. 100 pcsSquare A3DA-5201 Round A3DT-5201 Color of LED Lamp Red Yellow (White) *2 Green Forward voltage, V F Reference value (V) *1 1.7 2.2 2.1 Maximum value (V) 2.0 2.5 2.5 Forward current, I F 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, V R Absolute maximum value (V) 444 Operating frequency Mechanical Momentary operation models: 120 operations/minute max. Alternate operation models: 60 operations/minute max. *1 Electrical 20 operations/minute max. Contact resistance (initial value) 100mΩ max. Insulation resistance 100 MΩ min. (at 500 VDC with insulation tester) Dielectric strength Between terminals of same polarity 1,000 VAC, 50/60 Hz for 1 min Between terminals of different polarity 2,000 VAC, 50/60 Hz for 1 min Between each terminal and ground 2,000 VAC, 50/60 Hz for 1 min Between lamp ter- minals 1,000 VAC, 50/60 Hz for 1 min *2 Vibration resistance Malfunction 10 to 55 Hz, 1.5 mm double amplitude *3 Shock resistance Destruction 500 m/s2 max. Malfunction 150 m/s2 max. *3 Durability Mechanical Momentary operation models: 1,000,000 operations min. Alternate operation models: 100,000 operations min. *1 Electrical 100,000 operations min. Ambient operating temperature −10°C to +55°C (with no icing or condensation) Ambient operating humidity 35% to 85%RH Ambient storage temperature −25°C to +65°C (with no icing or condensation) Degree of protection IEC IP40 Weight Approx. 3 g Electric shock protection class Class II PTI (proof tracking index) 175 Pollution degree 3 (IEC60947-5-1)

A3D Lighted Pushbutton Switch (Cylindrical 8-dia.) A D Specifications Operating Characteristics * Alternate operation models only. Contact Form Engineering Data An external resistor is required. (Refer to page 8.) Operating force OF max. 2.45 N Release force RF min. 0.196 N Total travel TT Approx. 3.5 mm Locktravel alternate * LTA min. 0.5 mm Pretravel PT max. 2.5 mm Contact name Contact form SPST-NO COM NO LED Characteristics (VF -IF Characteristics) Red LED Yellow or White LED Green LED Forward Current Reduction Curve 0.5 100 Ta=50°C Ta=0°C Ta=25°C Ta: Ambient Temperature VF (V) IF (mA) Ta: Ambient Temperature Ta=50°C Ta=0°C Ta=25°C 0.1 0.5 100 VF (V) IF (mA) 0.5 100 VF (V) IF (mA) Ta=50°C Ta=0°C Ta=25°C Ta: Ambient Temperature 45mA 25°C 55°C 25mA 10-10 20 30 40 50 60 TA (°C) IF (mA)

A3D Lighted Pushbutton Switch (Cylindrical 8-dia.) A D Nomenclature Model Structure Type Specifications (1) Shape of Pushbutton Rectangular Square Round (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) (2) Color of Pushbutton (1) Shape of Pushbutton (3) Switch Specifications Note: The A3DJ model is shown here as a representative example. Switch Color cap Legend plate (milky white) Reflective plunger LED Pushbutton

A3D Lighted Pushbutton Switch (Cylindrical 8-dia.) A D Dimensions (Unit: mm) Terminals Type Terminals SPST-NO Lighted Models Solder Terminals 4.8 0.4 M8 × 0.75 5.8 6 0.8 1.6 0.3 5.5 24.5 7.4 12.4 9.5 Rectangular Models A3DJ 10 min. 15 min.8+0.2 0 dia. Note: Recommended panel thickness: 1.0 to 3.2 mm. Panel Cutouts (TOP VIEW) 4.8 0.4 M8 × 0.75 5.8 9.5 0.8 1.6 0.3 5.59 7.4 7.4 24.5 Square Models A3DA 10 min. 8+0.2 0 dia. Note: Recommended panel thickness: 1.0 to 3.2 mm. Panel Cutouts (TOP VIEW) 4.8 0.4 M8 × 0.75 5.8 9.5 0.8 1.6 0.3 5.5 24.5 9 dia.7.4 dia. Round Models A3DT 10 min. 8+0.2 0 dia. Panel Cutouts (TOP VIEW) Note: Recommended panel thickness: 1.0 to 3.2 mm. If the panel is to be finished (e.g., coated), make sure that the panel meets the specified dimensions after the coating. 1.6 LED terminal (t0.3) t0.4 0.8×2 0.8 0.80.8 6.5 CN O Terminal Arrangement (Bottom View)

A3D Lighted Pushbutton Switch (Cylindrical 8-dia.) A D Dimensions (Unit: mm) Accessory Mounting Dimensions Socket Mounting Dimensions Insulation Cover Mounting Dimensions (The illustration shows the rectangular model as a representative example.) A3D-3002 • After securing the Switch to the panel using the mounting nut, pass 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. Note: Unless specified, there is a tolerance of ± 0.4 mm for dimensions. Legend Plate Mounting Dimensions 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 wh en marking the legend. Wire-wrap Terminal/A3D-4101 PCB Terminal/A3D-4102 Solder Terminal/A3D-4103 16.5 1.9 1.9 1.9 1.9 16.5 30.7 9 dia. 0.3 0.6 6.1 0.3 1.6 16.5 6.5 6.5 30.7 6.11.6 0.6 3.5 9 dia. Four, 0.8 dia. PCB Cutout (BOTTOM VIEW) 0.3 6.1 0.3 1.6 16.5 30.7 6.11.6 9 dia. 8.9 dia. 5.8 10.7 5.8 5.8 5.3 0.8 5.8 dia. Rectangular/A3DJ-5201 Square/A3DA-5201 Round/A3DT-5201

A3D Lighted Pushbutton Switch (Cylindrical 8-dia.) A D Safety Precautions Refer to Safety Precautions for All Pushbutton Switches/Indicators. Mounting

  • 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 : Operating voltage (V) V F : LED forward voltage (V) IF : LED forward current (A) Recommended Values for Limiting Resistance Note: The above values are calculated va lues that can be used as reference. Calculation Example for Limiting Resistance LED lamp illuminating color: Red E = 24V I F = 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)): 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. 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%. Precautions for Correct Use Voltage Red Yellow (White) Green

5 VDC 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

0.1 1 10 100 1,000 100mA 150mA1mA 0.15mA 26mA 100mA Current (mA) Voltage (V)

A3D Lighted Pushbutton Switch (Cylindrical 8-dia.) A D Application Mounting and Replacing the Pushbutton (1) Mounting Direction for the Pushbutton and Switch

  • 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
  • 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. Socket Mounting
  • 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. Projection (Switch) (Pushbutton) Curved claw Recessed portions Panel Mounting nut Panel Projecting part of Switch Positioning groove of Socket

A3D Lighted Pushbutton Switch (Cylindrical 8-dia.) A 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 prod uct provide a margin of safety for the system or equipment, and be sure to provide the system or equipment with double safety mechanisms. Cat. No. A031-E1-07 1014(0207)(O) Note: Do not use this document to operate the Unit. OMRON Corporation Electronic and Mechanical Components Company Contact: www.omron.com/ecb