series 48 ss s o l i d s t a t e miniature hall-effect sealed pushbutton switches this rugged sealed pushbutton switch uses a hall-effect sensor to achieve extremely long life, up to 1,000,000 cycles momentary. this switch is suited for harsh environments where long life and reliability are needed, and offers a wide choice of mounting style, colours, terminations, lighting and momentary or maintained switching. key features 1,000,000 cycles momentary momentary and maintained action hall-effect technology panel sealed to ip67 square and round bezel versions available large choice of button colours solder or pc terminals choice of led colours or non- illuminated versions typical applications communications data entry hand-held control modules outdoor controls mass transport controls instrumentation standards / agency / ratings patent # 6,965,085 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
series 48 ss miniature hall-effect sealed pushbutton mechanical/electrical characteristics: circuit spst-no button travel (nominal) 2.3mm life (mechanical): 1,000,000 cycles a 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 supply voltage 4.2v to 24v, 26.5v max. supply current bbop, vcc=12v: 4ma typ. to 8ma max output current 30 to 50 ma reverse battery voltage -30v max. reverse battery current -50ma torque (max) (fixing nut) 1-2 newton metre pc terminals solder tab terminals ordering information switch switch module mounting function termination type bezel type led colour button colour type momentary solder tabs 48-3 rb - round, black n - none rd - red b - bushing maintained solder tabs 48-4 sb - square, black r - red gr - green s - snap fit momentary pc 48-7 rc, round chrome g - green bk - black maintained pc 48-8 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)
lamp
terminals 5.59 switch
terminals, centres ground terminal input terminal output terminal f ree position:
7.62 (illuminated)
8.00 (non illuminated)
maintained position:
6.10 (illuminated)
6.48 (non illuminated) f ?3.32 lightpipe
illuminated
s witches only 12.19 sq
b utton .170
.160 1 5.62
15.49 s ealing washer h ex nut m 12 x 1-6g
i so metric thread 1 .02(3) switch
t erminals (p.c.) positive(+)
l amp terminal n egative(-)
l amp terminal 2.54 lamp t erminals 0.51(2)
lamp terminals 17.45 sq bezel ? 3.32 lightpipe
i lluminated
switches only ? 12.19 button ? 17.45 bezel 4 .50(2) l amp
t erminals ?15.11
0.13 1 2.93 .030 ? 13.61 .030 recommended
panel cut-out
b ushing mount recommended
panel cut-out
s nap-in mount 0 1 0.49 2.54 switch
terminal (p.c.) 2.92 lamp terminal 5 .59 0.076 2.80 0.076 1.27 0.076 (3) switch 2.92 0.076 0 .89 0.076
( 2) lamp
hall effect device
output i nput 0.1 f ground suggested circuitry recommended pcb
hole pattern
(solder side)
2 .54 2 .54 0.076 + C c c 0.51(3) switch
terminals (p.c.) f ree position:
7 .62 (illuminated)
8.00 (non illuminated)
maintained position:
6.10 (illuminated)
6.48 (non illuminated) 12.70 (3) 9.14 5 .20 ? 0.41 sq.(2)
lamp terminals 2 .80 x 0.50 (3) switch terminals 4.50 (2) lamp
terminals sealing washer h ex nut m 12 x 1-6g
i so metric thread 1
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