Carling
Technologies
3S-Series Sub-Miniature Pushbutton Switches
™
3S1-Series
Sub-Miniature
Specifications
Contact Rating . . . . . . . . . refer to ordering scheme
Electrical Life . . . . . . . . . . 50,000 make & break cycles @ full
load
Pushbutton Switch
Contact Resistance. . . . . . 20 mΩ max. initial @ 2-4 VDC
100mA for both silver & gold plated
contacts.
Insulation Resistance . . . 1000 MΩ min.
Dielectric Strength . . . . . . 1500 Volts RMS @ sea level
Operating Temperature . . . -30°C to +85°C
Index of Protection . . . . . . 3SS & 3SM-Series: IP67
Solder Heat Resistance. . . MIL-STD-202, Method 210
Actuator Travel . . . . . . . . . 25°
3SS-Series
Sealed Sub-Miniature
Pushbutton Switch
Materials
Case . . . . . . . . . . . . . . . . UL 94-0
3S1-Series: Dially phthalate (DAP)
3SS-Series: Glass filled nylon 6/6,
flame retardant, heat stabilized
3SM-Series: Glass filled nylon 4/6,
flame retardant, heat stabilized
Plunger. . . . . . . . . . . . . . .3S1-Series: Thermoplastic poly-
ester, black
3SM-Series
Sealed Surface
Mount Sub-Miniature
Pushbutton Switch
3SS -Series: Thermoplastic poly-
ester (UL 94V-0), with internal o-ring
seal
3SM-Series: Glass filled nylon 4/6,
flame retardant, heat stabilized
Bushing . . . . . . . . . . . . . .3S1-Series: Brass, nickel plated
3SS-Series: Glass filled nylon 6/6,
flame retardant, heat stabilized (UL
94V-0)
3SM-Series: Glass filled nylon 4/6,
flame retardant, heat stabilized (UL
94V-0)
Housing. . . . . . . . . . . . . . .Stainless Steel
Switch Support . . . . . . . . . Brass, tin plated
Terminal Seal . . . . . . . . . . Epoxy
3S1-Series Ordering Scheme
-
-
-
M7 R
Termination
-
9
B6
3S1 SP
E
Seal
4
1
2
3
5
6
7
Bushing
Series
Poles
Circuit
Contact
5 TERMINATION
1 SERIES
3S1 Sub-Miniature Pushbutton Switch
M1
Solder Lug
M2
PCB
M6
M61
M7
M71
VS2
VS21
PC Mount, 90° horizontal
Snap-In, 90° horizontal
PC Mount, 90° vertical
Snap-In, 90° vertical
2 POLES
SP single pole
PC Mount, U bracket, .620 mounting x .460 high
Snap-In, U bracket
3 CIRCUIT
(
) - momentary
8
9
ON
OFF
(ON)
(ON)
6 CONTACT
Material Terminal Plating Rating
G
K
P
Q
R
silver1
gold2
gold over silver3 1A@125VAC or 28VDC
tin-lead4
tin-lead4
silver1
0.4VA max. @20V max (AC/DC)
silver1
silver1
gold2
1A@125VAC or 28VDC
4 BUSHING
B5
B6
B7
B8
B9
B0
10-48 Threaded
Unthreaded “D”
Unthreaded
1/4-40 Threaded “D”
Flush Bushing
1/4” Unthreaded “D”
1A@125VAC or 28VDC
0.4VA max. @20V max (AC/DC)
gold2
NOTE:
Tin-lead option available with PC type terminations only.
1
2
3
4
Moveable contact & terminals: copper alloy, silver plate
Moveable contact & terminals: copper alloy with gold plate over nickel plate
Terminals: silver plated with outer layer in gold plating
Outer terminals: copper alloy with tin-lead over nickel plate
7 EPOXY SEAL
epoxy seal
E
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