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