E L E C T R O
SNAP ACTION
-
M E C H A N I C A L
CUSTOM ASSEMBLIES
Series 48
EM
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
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
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Typical Applications
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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
Office equipment
Medical equipment
Industrial machinery
Outdoor controls
Mass transportation
Food processing equipment
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)
-40°C to +85°C
Current ratings
10mA, 12 VDC Res.
Dielectric strength
1,000 VAC
Insulation resistance
1G OHM
Contact resistance
50m OHMS
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Torque (max) (Fixing Nut)
1-2 Newton Metre
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Solder Tab Terminals
Ø3.32 Lightpipe
Illuminated Switches Only
Ø
Free Position:
7.62 (Illuminated)
8.00 (Non Illuminated)
Maintained Position:
6.10 (Illuminated)
6.48 (Non Illuminated)
12.70
5.59 Switch
Terminals,
Centres
17.45
12.19
0.41 (2)
Lamp
Terminals
5.20
9.14
Ø3.32 Lightpipe
Illuminated Switches Only
C
4.50 Lamp
Terminals
Positive(+)
Lamp Terminal
2.79 x 0.51
Switch Terminals
Negative (-)
Lamp Terminal
2.54 Lamp
Terminals
0.51 (2) Lamp
Terminals
Coloured Button
See Table
12.19 sq
Button
17.45 sq Bezel
M12 x 1-6g
ISO Metric Thread
Hex Nut
Sealing Washer
4.32
4.06
12.93±0.03
15.11±.0.13
13.61±0.03
Recommended
Panel Cut-out
Bushing Mount
15.62
15.49
Recommended
Panel Cut-out
Snap-in Mount
Schematic
Form X
SPST-NO-DB
PC Terminals
Free Position:
7.62 (Illuminated)
8.00 (Non Illuminated)
Maintained Position:
6.10 (Illuminated)
6.48 (Non Illuminated)
F
12.70
10.49
0.41 sq.(2)
Lamp
Terminals
1.27
±
0.076
Switch
5.59
±
0.076
C
1.02 sq.(2)
Switch
Terminals
(PC)
2.92
±
0.076
0
4.50 (2)
Lamp
Terminals
9.14
5.20
M12 x 1-6g
ISO Metric Thread
Hex Nut
Sealing Washer
0.889
±
0.076
Lamp
Recommended PCB
Hole Pattern
(Solder Side)
Ordering Information
Switch
Function
Momentary
Maintained
Momentary
Maintained
Switch
Termination
Solder Tabs
Solder Tabs
PC
PC
Module
Type
48-1
48-2
48-5
48-6
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
DIY/Open Source Hardware
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