lighted pushbutton switch a3a compact switch unit allows signal and power switching in the same model capable of switching within the range 1ma 5vdc to 6a 125vac. mounting direct to pcb, or panel mounting using appropriate bezel. requires only 14.5mm behind panel depth. options include: round or square momentary or latching illuminated or nonilluminated ordering information a3a 1 9 2 3 100 4 1 pushbutton shape code shape a square t round 2 terminals code type 0 solder 1 pcb 3 action code action k momentary l alternate 4 pushbutton code colour t ype type er red illuminated ey yellow illuminated eg green illuminated l grey nonilluminated r red nonilluminated y yellow nonilluminated g green nonilluminated a blue nonilluminated b black nonilluminated specifications led ratings absolute maximum characteristic unit value reverse v oltage v r 4v forward current i f 25ma permissable loss p d 70mw operating t emp t opr 20 to + 75 c storage t emp t sto 30 to + 100 c contact ratings voltage (v) current (a) (v) resistive lamp inductive motor 125 ac 6 1 2 1 250 ac 2 0.5 1 0.5 8 dc 4 1 2 1 14 dc 4 1 2 1 30 dc 4 1 1.5 1 125 dc 0.4 0.05 0.4 0.05 250 dc 0.4 0.03 0.2 0.03 note: min. permissible load 1ma 5vdc led ratings standard ratings characteristic unit condition typical max forward voltage v f i f = 15ma 2.05v 2.8v reverse current i r v r = 4v 100ma
characteristics insulation resistance 100m w min. (at 500vdc) dielectric strength 600 v ac, 50/60hz for 1 minute between terminals of same polarity 2,000v ac, 50/60hz for 1 minute between terminals of dif ferent polarity and also between each terminal and ground vibration mechanical and malfunction durabiltiy: 10 to 55hz, 1.5mm double amplitude shock mechanical durability: 500 m/s 2 (approx. 50 g) shock mechanical durability: 500 m/s (a rox . 50 g) mechanical durability: 150 m/s 2 (approx. 15 g) ambient temperature operating: 10 c to 55 c humidity 35 to 85% rh life expectancy mechanical: momentary action type: 1,000,000 operations min. alternate action type: 50,000 operations min. electrical: 50,000 operations min. weight approx. 3.2g dimensions panel cutout for separate mounting * recommended panel thickness: 1 to 1.6 mm ** flange dimensions: round: 12.7 dia. square: 12.7 flange panel 11.5 dia. flange 14.5 11.5 +0.2 0 +0.2 0 11.5 +0.2 0 for round pushbutton for square pushbutton horizontal multiple mounting 15.3 min 11.5 dia +0.2 0 11.5 15.3 min +0.2 0 3.8 min 11.5 +0.2 0 vertical multiple mounting 12.7 min 11.5 dia +0.2 0 11.5 15.3 min +0.3 0 12.7 (n1) +11.5 +0.2 0 note: 1. unless otherwise specified, a tolerance of+/ 0.2mm applies to all dimensions. 2. the illustrations below show switches with solder terminals, without flange or leafspring. nonlighted illuminated 15.24 12.7 8.9 dia. round pushbutton type square pushbutton 8.9 round pushbutton type square pushbutton 12.7 8.9 dia. 15.24 8.9 mechanical indication 18 12.5 3.5 1.7 0.8 x 2 (21.5) two 0.4 thick terminals 18 12.5 3.5 1.7 0.8 x 2 two 0.3 thick led terminals two 0.4 thick terminals (21.5) surface illumination (1.5 x 1.5)
type high capacity (spstno) pcb terminals nonlighted model 1 3.5 0.4t 0.6 1.7 lighted model 0.6 1.7 0.3t 3.5 1 led terminals are provided in the lighted models only led terminals 10.16 4.48 10.16 mounting holes mounting holes are provided in the lighted models only. (0.67) (1.87) 10.16 (2.54) (2.54) 4.48 (bottom view) 10.16 four 1. dia. holes type high capacity (spstno) solder terminals nonlighted model lighted model led terminals are provided in the lighted models only led terminals 10.16 1 3.5 0.4t 1.7 0.8 x 2 1.7 0.3t 3.5 1 0.8 x 2 10.16 4.48 accessories (order separately) flange (select according to colour) name shape classification model remarks black a3a251 flange alone light grey a3a252 flange alone black a3a241 light grey a3a242 flange leaf spring a3a200 black a3a221 flange and leaf s p ring light grey a3a222 flange and leaf spring (one each) black a3a211 () light grey a3a212 note: switch units having solder terminals are supplied with a black flange (appropriately round or square) and a metal leaf spring, used when panel mounting.
|
