series 48 em e l e c t r o - m e c h a n i c a l flex-tech miniature sealed pushbutton switches this multi-option sealed pushbutton series offers the utmost in choices of mounting style, button colours, terminations, bezels, lighting and momentary or maintained switching. the series 48 offers all these options in one compact package size. key features momentary or maintained action gold contacts large choice of button colours choice of led colours (or non-illuminated versions) long life solder or pc terminals panel sealed to ip67 square and round bezel versions available typical applications office equipment medical equipment industrial machinery outdoor controls mass transportation food processing equipment s n a p a c t i o n c u s t o m a s s e m b l i e s p u s h b u t t o n s e a l e d r o c k e r i n d i c at o r s l i d e va n d a l r e s i s ta n t i l l u m i n at e d a c t i v e t o u c h standards / agency / ratings patent # 6,965,085
series 48 em flex-tech miniature sealed pushbutton mechanical/electrical characteristics: circuit spst-no-db button travel (nominal) 2.3mm life (mechanical): 1,000,000 cycles max (momentary) 100,000 cycles max (maintained) operating force (nominal) 3n/306g contact bounce (nominal) 1 ms panel thickness 0.5-3mm temperature (operating) -40c to +85c current ratings 10ma, 12 vdc res. dielectric strength 1,000 vac insulation resistance 1g ohm contact resistance 50m ohms torque (max) (fixing nut) 1-2 newton metre solder tab terminals pc terminal s ordering information switch switch module mounting function termination type bezel type led colour button colour type momentary solder tabs 48-1 rb - round, black n - none rd - red b - bushing maintained solder tabs 48-2 sb - square, black r - red gr - green s - snap fit momentary pc 48-5 rc, round chrome g - green bk - black maintained pc 48-6 sc, square chrome y - yellow bl - blue a - amber y - yellow b - blue or - orange w - white cr - chrome wh - white itw switches limited norway road, portsmouth, hampshire po3 5ht united kingdom tel: 023 9265 6200 fax: 023 9266 6352 email: info@itwswitches.co.uk www.itwswitches.co.uk 48-x -xx -x -xx -x dbd/3m/10.07 1 2.70 5 .20 9 .14 0 .41 (2)
l amp
t erminals 5.59 switch
t erminals,
c entres free position:
7.62 (illuminated)
8.00 (non illuminated)
maintained position:
6.10 (illuminated)
6 .48 (non illuminated) f ? 3.32 lightpipe
i lluminated switches only 12.19 sq
b utton 4.32
4.06 1 5.62
15.49 sealing washer h ex nut m 12 x 1-6g
i so metric thread 2 .79 x 0.51
switch terminals p ositive(+)
l amp terminal n egative (-)
lamp terminal 2 .54 lamp
t erminals 0.51 (2) lamp
terminals 17.45 sq bezel ?3.32 lightpipe
illuminated switches only 4.50 lamp
terminals 15.11 .0.13 1 2.93 0.03 1 3.61 0.03 recommended
panel cut-out
b ushing mount recommended
panel cut-out
s nap-in mount 0 c oloured button
s ee table 1 7 . 4 5 1 2 . 1 9 s chematic
f orm x
spst-no-db
c free position:
7.62 (illuminated)
8.00 (non illuminated)
m aintained position:
6 .10 (illuminated)
6.48 (non illuminated) 12.70 10.49 9.14 5 .20 ? 0.41 sq.(2)
lamp t erminals 1.02 sq.(2) switch
terminals (pc) 5.59
0.076 2.92
0.076 0 .889 0.076
lamp recommended pcb
hole pattern
(solder side) 1 .27 0.076
switch 4.50 (2) lamp
terminals sealing washer hex nut m 12 x 1-6g iso metric thread c
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