S O L I D
SNAP ACTION
S T A T E
CUSTOM ASSEMBLIES
Series 48
SS
PUSH BUTTON
SEALED
ROCKER
I N D I C AT O R
SLIDE
VA N D A L R E S I S TA N T
I L L U M I N AT E D
ACTIVE TOUCH
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
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Typical Applications
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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
Communications
Data entry
Hand-held control modules
Outdoor controls
Mass transport controls
Instrumentation
Standards / Agency / Ratings
Patent # 6,965,085
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)
-40°C to + 85°C
Supply voltage
4.2V to 24V, 26.5V Max.
Supply current
B<Brp, Vcc=12V:
3mA Typ. To 8mA Max.
B>Bop, 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
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Ø
PC Terminals
Ø3.32 Lightpipe
Illuminated
Switches Only
Free Position:
7.62 (Illuminated)
8.00 (Non Illuminated)
Maintained Position:
6.10 (Illuminated)
6.48 (Non Illuminated)
1
12.70
10.49
0.51(3) Switch
Terminals (P.C.)
2.54 Switch
Terminal (P.C.)
0.41(2)
Lamp
Terminals
5.59 Switch
Terminals, Centres
Ground Terminal
Output Terminal
2.92 Lamp Terminal
Ø12.19 Button
Ø17.45 Bezel
5.20
9.14
Ø3.32 Lightpipe
Illuminated
Switches Only
Input Terminal
4.50(2)
Lamp
Terminals
Positive(+)
Lamp Terminal
1.02(3) Switch
Terminals (P.C.)
2.54 Lamp
Terminals
Negative(-)
Lamp Terminal
0.51(2)
Lamp Terminals
5.59
±
0.076
2.80
±
0.076
C
2.54
C
+
–
0.89
±
0.076
(2) Lamp
1.27
±
0.076
(3) Switch
2.92
±
0.076
12.19 sq
Button
17.45 sq Bezel
M12 x 1-6g
ISO Metric Thread
Hex Nut
Sealing Washer
2.54
±
0.076
Recommended PCB
Hole Pattern
(Solder Side)
Hall Effect Device
.170
.160
12.93
±
.030
Ø15.11
±
0.13
Recommended
Panel Cut-out
Bushing Mount
15.62
15.49
Recommended
Panel Cut-out
Snap-in Mount
Ø13.61
±
.030
Input
0.1µF
Ground
Suggested Circuitry
Output
Solder Tab Terminals
Free Position:
7.62 (Illuminated)
8.00 (Non Illuminated)
Maintained Position:
6.10 (Illuminated)
F
6.48 (Non Illuminated)
12.70 (3)
0.41 sq.(2)
Lamp Terminals
2.80 x 0.50 (3)
Switch Terminals
0
5.20
9.14
4.50 (2) Lamp
Terminals
M12 x 1-6g
ISO Metric Thread
Hex Nut
Sealing Washer
Ordering Information
Switch
Function
Momentary
Maintained
Momentary
Maintained
Switch
Termination
Solder Tabs
Solder Tabs
PC
PC
Module
Type
48-3
48-4
48-7
48-8
Bezel Type
RB - Round, Black
SB - Square, Black
RC, Round Chrome
SC, Square Chrome
LED Colour
N - None
R - Red
G - Green
Y - Yellow
A - Amber
B - Blue
W - White
Button Colour
RD - Red
GR - Green
BK - Black
BL - Blue
Y - Yellow
OR - Orange
CR - Chrome
WH - White
Mounting
Type
B - Bushing
S - Snap Fit
48-X
-XX
-X
-XX
-X
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
DBD/3M/10.07
Analog electronics
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