A3AT-91L1-00J

A3A OMRON | Alldatasheet

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Lighted Pushbutton Switch A3A Compact Switch Unit Allows Signal and Power Switching with the Same Model Compact, high-capacity push-button switch that has contacts with a 3-mm gap and is ideal as a power switch. Capable of switching within the range of 1 mA, 5V D Ct o6A ,1 2 5V A C . Requires only 14.5 mm behind the panel. Options include the following: ! Round or square ! Momentary or alternating ! Surface illumination or non-lighted

Ordering Information

Appearance Terminal Action Illumination Model Color Square Solder Momentary Non-lighted A3AA-90K1-00j R (red) A3AA-9jj1-00j Surface illumination A3AA-90K1-00Ej Y (yellow) Alternating Non-lighted A3AA-90L1-00j G (green) Surface illumination A3AA-90L1-00Ej L (light gray) (see note) A3AA-9jj1-00Ej PCB Momentary Non-lighted A3AA-91K1-00j A (Blue) (see note) Surface illumination A3AA-91K1-00Ej B (black) (see note) Alternating Non-lighted A3AA-91L1-00j D (dark gray) (see note) Surface illumination A3AA-91L1-00Ej H (gray) (see note) Round Solder Momentary Non-lighted A3AT-90K1-00j A3AT-9jj1-00j Surface illumination A3AT-90K1-00Ej Alternating Non-lighted A3AT-90L1-00j Surface illumination A3AT-90L1-00Ej A3AT-9jj1-00Ej PCB Momentary Non-lighted A3AT-91K1-00j A3AT-9jj1-00Ej Surface illumination A3AT-91K1-00Ej Alternating Non-lighted A3AT-91L1-00j Surface illumination A3AT-91L1-00Ej Note: The above models each have a SPST-NO contact that can switch 6 A at 125 VAC, 2 A at 250 VAC, and 4 A at 30 VDC. When ordering any of the above models, replacejof the model number with a code to indicate the pushbutton color of the model (i.e., replacejwith R, Y, G, L, A, B, D, H, and L). The pushbutton of an A3A does not illuminate if the color of the pushbutton is dark gray, gray, light gray, blue, or black.

Appearance Terminal Action Illumination Model Color Square A3AA 9jj1 00j Solder Momentary Non-lighted A3AA-90A1-00j R (red) Y (yellow) q A3AA-9jj1-00j Surface illumination A3AA-90A1-00Ej Y (yellow) G (green) Alternating Non-lighted A3AA-90B1-00j G (green) L (light gray) (see note) A (blue) (see note) Surface illumination A3AA-90B1-00Ej A (blue) (see note) B (black) (see note) D (d k ) ( t ) A3AA-9jj1-00Ej PCB Momentary Non-lighted A3AA-91A1-00j ( ) ( ) D (dark gray) (see note) H (gray) (see note) A3AA-9jj1-00Ej Surface illumination A3AA-91A1-00Ej H (gray) (see note) Alternating Non-lighted A3AA-91B1-00j Surface illumination A3AA-91B1-00Ej Round A3AT 9jj1 00j Solder Momentary Non-lighted A3AT-90A1-00j A3AT-9jj1-00j Surface illumination A3AT-90A1-00Ej Alternating Non-lighted A3AT-90B1-00j Surface illumination A3AT-90B1-00Ej A3AT-9jj1-00Ej PCB Momentary Non-lighted A3AT-91A1-00j A3AT-9jj1-00Ej Surface illumination A3AT-91A1-00Ej Alternating Non-lighted A3AT-91B1-00j Surface illumination A3AT-91B1-00Ej Note: The above models each have a SPDT contact that can switch 3 A at 125 VAC and 2 A at 30 VDC. When ordering any of the above models, replacejof the model number with a code to indicate the pushbutton color of the model (i.e., replacejwith R, Y, G, L, A, B, D, H, and L). The pushbutton of an A3A does not illuminate if the color of the pushbutton is dark gray, gray, light gray, blue, or black. Model Number Legend A3Aj-9jj1-jj 12 34 5 1. Shape A: Square T: Round 2. Terminal 0: Solder 1: PCB 3. Switch

6 A at 125 VAC, 2 A at 250 VAC, 4 A at 30 VDC

A: Momentary (SPDT) B: Alternating (SPDT) K: Momentary (SPST-NO) L: Alternating (SPST-NO) 4. Illumination 00: Non-lighted 00E: Surface illumination 5. Color Switch (Non-lighted Models) L: Light gray R: Red Y: Yellow G: Green A: Blue B: Black D: Dark gray H: Gray LED (Surface Illumination Models) R: Red Y: Yellow G: Green

Accessories (Order Separately) Flange Select according to panel color. Name Shape Classification Model Flange Square, 12.7 x 12.7 Flange alone Black A3A-241 Light gray A3A-242 Round, 12.7 dia. Black A3A-251 Light gray A3A-252 Leaf spring A3A-200 Square, 12.7 x 12.7 Flange and leaf spring (one each) Black A3A-211 (one each) Light gray A3A-212 Round, 12.7 dia. Black A3A-221 Light gray A3A-222 Note: An A3A with solder terminals is provided with a round or square black flange and flat spring for the switching mechanism of the A3A. A round black flange is provided with each A3A having solder terminals and a round pushbutton. A square black flange is provided with each A3A having solder terminals and a square pushbutton. Specifications Contact Ratings Type Contact form Resistive load High capacity SPST-NO 6 A at 125 VAC

2 A at 250 VAC

4 A at 30 VDC

Note: Minimum allowable load: 5 VDC 1 mA (Resistive) LED Ratings Item Surface illumination Red Yellow Green Forward voltage VF Standard value 2.1 V (2.2 V) 2.2 V Maximum value 2.8 V Forward current IF Standard value 15 mA Maximum value 25 mA Permissible loss PD Absolute max. value 70 mW Reverse voltage VR Absolute max. value 3V Note: The above built-in LEDs do not have a resistor. Connect to each of the above built-in LEDs a resistor that satisfies the above conditions.

Operating frequency Mechanical: Momentary action: 120 operations/min max. Alternating action: 60 operations/min max. (see note 1) Electrical:20 operations/min max. Insulation resistance 100 M" min. (at 500 VDC) Contact resistance 100 m" max. (initial value) for high-capacity Dielectric strength 600 VAC, 50/60 Hz for 1 min between terminals of same polarity 2,000 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

600 VAC, 50/60 Hz for 1 min between LED terminal (see note 2)

Vibration resistance Malfunction: 10 to 55 Hz, 1.5-mm double amplitude Shock resistance Destruction: 500 m/s2 (approx. 50G) Malfunction: 150 m/s2 (approx. 15G) Life expectancy Mechanical: Momentary action: 1,000,000 operations min. Alternating action: 50,000 operations min. Electrical:50,000 operations min. Ambient temperature Operating: - -10#Ct o5 5#C (with no icing) Storage: - -25 #Ct o6 5#C Ambient humidity Operating: 35% to 85% Weight Approx. 3.2 g Note: 1. A setting and resetting is regarded as one operation. 2. A dielectric strength of 600 VAC at 50 or 60 Hz for one minute is ensured for the A3A without a built-in LED. 3. An A3A alternating-operation model and an A3A with standard ratings have an electrical life of 100,000 times minimum. An A3A with a 10-mA resistive load at 6 VDC has an electrical life of 1,000,000 times. Approved Standards UL (File No. E41515)/CSA (File No. LR45258) OF max. 250 gf (2.45 N) RF min. 15 gf (0.15 N) TT Approx. 2 mm PT max. 1.5 mm LTA min. (see note) 0.5 mm Note: The above lock stroke figure applies to the A3A Alternating Operation model only. Type Contact form Resistive load High capacity SPST-NO 6 A at 125 VAC General purpose SPDT 3 A at 125 VAC 2 A at 30 VAC

Square (A3AA) Round (A3AT) Illumination Color Non-lighted Model Red, yellow, light gray, gray, dark gray, green blue, black Surface Illumination Model Red, yellow, green Flange Leaf springSwitch Unit Ratings (Standard load)

6 A at 125 VAC

Minimum applicable load: 1 mA at 5 VDC (resistive load) Terminals Solder terminal PCB terminal Diffusion sheet (milky white) Contact Type Type Contact form Contact type Double-break type SPST-NO NO NO Double-throw type SPDT COM NC NO Note: 1. The above is for the A3AA. 2. An A3A with solder terminals is provided with a black flange and flat spring for the switching mechanism, however an A3A with PCB terminals is not provided with them. If a black flange and flat spring are required for an A3A with PCB terminals, order them from your OMRON representative.

Note: 1. All units are in millimeters unless otherwise indicated. 2. The illustrations below show switches with solder terminals, without a flange or leaf spring. Non-lighted Model Square Pushbutton Round Pushbutton Surface Illumination Model Square Pushbutton Round Pushbutton Square push-button 8.9 $ 8.9 Round push-button 8.9 dia. 8.9 $ 8.9 Square push-button Round push-button Two, t0.4 terminals Surface illumination Surface illumination Two, t0.3 LED terminals 8.9 dia. Two, t0.4 terminals Three, t0.4 terminals SPST-NO SPDT SPST-NO SPDT Three, t0.4 terminals Two, t0.3 LED terminals Accessories (Order Separately) Note: Unless otherwise specified, a tolerance of%0.4 mm applies to all dimensions. A3A-200 Leaf Spring A3A-24j Flange (Square) A3A-25j Flange (Round) 12.7 $ 12.7 9.1 $ 9.1 t=0 . 3 12.7 dia. 9.1 dia. 1.0 1.0

11.5+0.2 11.5+0.2 11.5+0.2 0 dia. 14.5 max. Flange Panel (see note) Leaf spring Note: Recommended panel thickness: 1 to 1.6 mm For Side-by-side Mounting Mounting Square pushbutton Round pushbutton Horizontal multiple mounting 3.8 min 15.3 min. 15.3 min. 11.5+0.2 0 dia. Vertical multiple mounting 11.5+0.2 0 dia. 12.7 min.

Solder terminal PCB terminal SPST- NO Non-lighted Models Lighted Models Terminal Arrangement (Bottom View) Terminals LED terminal Terminal for models with an illuminating push-button 0.8 0.8 x 2 Non-lighted Models Lighted Models Terminal Arrangement (Bottom View) PCB Dimensions (Bottom View) t0.4 terminal LED terminal Terminal for models with an illuminating push-button Four, 1d i a . holes Holes for models with illuminating push-button t0.3 terminal 10.16 4.48 SPDT Non-lighted Models Lighted Models Terminal Arrangement (Bottom View) LED terminal Switch terminal: t0.4 Lamp terminal: t0.3 Switch terminal: t0.4 Non-lighted Models Lighted Models Terminal Arrangement (Bottom View) PCB Dimensions (Bottom View) LED terminal Five, 1-dia. holes Holes for models with illuminating push-button Switch terminal: t0.4 Switch terminal: t0.4 LED terminal: t0.3

Mounting Switch Unit on a Panel Mount Leaf Spring Press the leaf spring into the fitted groove on the upper surface of the switch unit. For an easier fitting, first fit one side of the leaf spring, then press the other side into the fitting groove. Leaf spring Leaf spring fitting groove Switch unit Note: Be sure to fit the leaf spring exactly into the groove, and do not allow it to slip out of the groove. Mount Flange on Panel Insert the flange from the front surface of the panel. Panel Flange Guide The flange has two opposing guides to facilitate its insertion into the panel cutout hole. Be sure the flange does not remain tilted with re- spect to the panel surface after being installed. Cross Section Flange Panel (t = 1 to 1.6 mm) Note: The mounting direction of the flange determines the orientation of the switch unit. Fit Flange with Switch Unit While holding the flange, insert the opposing supports into the gaps between the leaf spring and switch unit on the longer sides of the housing, and fit the rectangular hole of the flange with the projec- tions of the switch housing. Support Panel Projection Note: Completely remove any burrs on the panel cutout surface; otherwise, the flange and switch unit will not attach solidly. Removing Switch Unit Insert a small flat-bladed screwdriver or tweezers into the flange support exposed on the rear of the panel. Pry up on each side to pull out the switch unit. Panel Flat-bladed screwdriver or tweezers Note: Do not pry up the flange support more than necessary or the switch holding portions may be damaged.

When operating an A3A, make sure that the A3A has a pushbutton. Do not operate the A3A with a screwdriver or tweezers without mounting a pushbutton to the A3A, otherwise the A3A may malfunc- tion. Mounting When opening a hole on a panel to mount an A3A to the panel, make sure that the hole has no burr. When mounting a flange to the switching mechanism of an A3A, make sure that the flange and the casing of the switching mecha- nism are engaged securely. Wiring When soldering the terminals of an A3A, refer to the following. 1. For manual soldering: Use a soldering iron with an input of

30 W to solder the terminals at a temperature of 280#C

maximum within five seconds. 2. For automatic soldering: Solder the terminals at a temperature of 240#C within three seconds. Do not impose any external force on the terminals for one minute after the terminals are soldered. Do not solder the terminals at a temperature of 300#C or more, otherwise the resin casing of the A3A will deform and the location of the terminals will change. Do not pull the terminals of any A3A with a force exceeding 0.6 kgf (5.34 N), otherwise the joint part of the A3A may be damaged. When soldering the terminals of an A3A, apply non-corrosive rosin flux to the terminals. After soldering the terminals of an A3A, do not wash the A3A with any solvent. When mounting an A3A to a PCB and soldering the terminals of the A3A to the PCB, make sure that the flux will not rise above the sur- face of the PCB. Operating Environment When using an A3A, make sure that dust, metal powder, or oil will not penetrate into the interior of the A3A. LED The back of an A3A with an LED indicates the polarity of the LED. Wire the LED correctly according to the polarity. An A3A with a built-in LED does not have a limiting resistor. Connect a limiting resistor to the build-in LED. The resistance can be calculated by using the following expression. R=( E- - VF)/IF (") E: Applied voltage (V) VF: LED forward voltage (V) IF: LED forward current (A) Note: Make sure that the limiting resistor connected to the built-in LED of an A3A satisfies the characteristics of the built-in LED. The mean forward current of the built-in LED must be 8 mA minimum. Example Conditions: Red LED with an IF of - -10 mA at 24 V and a Ta of 25#C. From the red LED characteristic below, VF will be 2 V when IF is 10 mA. Therefore, R = (24 V - - 2 V)/0.01 A = 2,200". Thus the recommended resistance is 2.2 k" at 0.5 W (2 x IF2R). The permissible wattage of the resistor must be twice as large as the required wattage. LED Characteristics (VF -- IF Characteristics) Ta: Ambient Temperature Red Green Yellow I( m A )F VF (V) I( m A )F VF (V) I( m A )F VF (V) Ta = 50#C Ta = 50#C Ta = 50#C Ta = 25#C Ta = 25#C Ta = 25#C Ta = 0#C Ta = 0#C Ta = 0#C Pushbutton When exchanging the pushbutton unit (except the ones for the me- chanical indicator models) with a new one, pull out the pushbutton unit from the switch unit, holding the pushbutton unit in the longitudi- nal direction. Do not remove the pushbutton unit of the mechanical indicator mod- el. Engraving of Pushbutton Depth of engraving: 0.3 mm max. for illuminating pushbutton 0.5 mm max. for non-illuminating pushbutton Since the pushbutton unit is made of polycarbonate, use an alcohol- based solvent when cleaning the unit. Pressing of Pushbutton Apply firm pressure to the pushbutton unit when operating it. In do- ing so, however, do not apply a pressure greater than 1.2 kgf (11.8 N). ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. A025-E1-4