Series SK
Toggles
Process Sealed Keylocks
Rockers
General
Specifications
Electrical Capacity (Resistive Load)
Logic Level:
0.4VA maximum @ 28V AC/DC maximum
(Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
See Supplement section to find explanation of operating range
Programmable Illuminated PB
Pushbuttons
Other Ratings
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Nominal Operating Torque:
Contact Timing:
Angle of Throw:
Keylocks
F
80 milliohms maximum
100 megohms minimum @ 500V DC
500V AC minimum for 1 minute minimum
30,000 cycles minimum
10,000 cycles minimum
.026Nm (.234 lb
•
in) for momentary action models
.020Nm (.182 lb
•
in) for maintained action models
Break-before-make
90° for 2-position & 45° for 3-position
Materials & Finishes
Rotaries
Boot:
Key:
Tactiles
Tumbler Barrel:
Bushing:
Bracket:
Base:
Movable Contactor:
Stationary Contacts:
Terminals:
Polyvinyl chloride
Brass alloy with bright nickel plating;
brass alloy with bright nickel plating & ABS resin handle
Polyacetal
Zinc alloy with nickel plating
Steel with tin plating
Glass fiber reinforced polyamide
Beryllium copper with gold plating
Copper with gold plating
Brass with tin plating
Slides
Environmental Data
Tilt
Operating Temperature Range:
Humidity:
Vibration:
Shock:
–25°C through +70°C (–13°F through +158°F)
90 ~ 95% humidity for 240 hours @ 40°C (104°F)
10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range & returning
in 1 minute; 3 right angled directions for 2 hours
50G (490m/s
2
) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
Touch
PCB Processing
Soldering:
Cleaning:
Accessories
Indicators
Wave Soldering recommended: See Profile B in Supplement section.
Manual Soldering: See Profile B in Supplement section.
Automated cleaning. Boot must be on switch during processing.
See Cleaning specifications in Supplement section.
Standards & Certifications
Supplement
These SK Series devices have not been tested for UL recognition or CSA certification.
These switches are designed for use in a low-voltage, low-current, logic-level circuit.
When used as intended in a logic-level circuit, the results do not produce hazardous energy.
F20
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Process Sealed Keylocks
Series SK
Toggles
Short body size for space-saving, behind panel
dimensions.
F
Bifurcated, self-wiping contact mechanism
provides unequalled logic-level reliability
and smoother, positive detent actuation.
.100” x .100” (2.54mm x 2.54mm) terminal
spacing conforms to standard PC board grid
spacing.
Actual Size
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F21
Supplement
Accessories
Indicators
Touch
Tilt
Tactiles
Crimped bracket legs ensure secure PCB
mounting and prevent dislodging during
automated wave soldering.
Slides
Rotaries
Keylocks
Detent mechanism, with its spring-operated
steel ball, gives crisp, positive action for
accurate switch setting.
Programmable Illuminated PB
Molded-in terminals seal out flux, solvents, and
other contaminants.
Pushbuttons
Sealed body construction plus disposable boot protect contacts
and allow automated processing.
Rockers
Distinctive
Characteristics
Series SK
Toggles
Process Sealed Keylocks
TYPICAL SWITCH ORDERING EXAMPLE
Rockers
Programmable Illuminated PB
Pushbuttons
SK
Poles
1
2
SPDT
SP3T
DPDT
DP3T
2
4E
G
Contact Material
G
Gold Rated 0.4VA
@ 28V AC/DC
30
Keylocks
Circuits & Key-Removable Positions
F
PC Terminals
13
30
Straight with Bracket
Right Angle
Code
2A
2B
5B
*4D
*4E
Pos. 1
ON
ON
ON
ON
ON
Pos. 2
NONE
NONE
NONE
ON
ON
Pos. 3
ON
ON
(ON)
ON
ON
Key Removes
Positions 1 and 3
Position 1
Position 1
Positions 1, 2, 3
Position 2
Rotaries
Tactiles
Slides
( ) = Momentary
*Can be used as ON-OFF-ON circuit
Tilt
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
SK24EG30
Touch
Gold Contacts Rated 0.4VA
DP3T ON-ON-ON Circuit
Key Removable in Position 2
Right Angle PC Terminals
Indicators
Supplement
Accessories
2 Keys Supplied with each Switch
F22
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Process Sealed Keylocks
POLES, CIRCUITS & KEY-REMOVABLE POSITIONS
Pole &
Throw
SPDT
SPDT
SPDT
DPDT
DPDT
DPDT
SP3T
SP3T
DP3T
DP3T
Key Positions
Model
SK12A
SK12B
SK15B
SK22A
SK22B
SK25B
SK14D
SK14E
SK24D
SK24E
Pos 1
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
Pos 2
NONE
NONE
NONE
NONE
NONE
NONE
ON
ON
ON
ON
Pos 3
ON
ON
(ON)
ON
ON
(ON)
ON
ON
ON
ON
Connected Terminals
(Terminal numbers are not on switch)
Series SK
Schematic
C1
3
POS 1
•
Pos 1
C1-1
C1-1
C1-1
C2-4
C1-1
C2-4
C1-1
C1-1
C1-1
C2-4
C1-1
C2-4
Pos 2
____
____
____
Pos 3
C1-2
C1-2
C1-2
C2-5
C1-2
C2-5
C1-3
C1-3
C1-3
C2-6
C1-3
C2-6
1
1
POS 1
1
2
POS 1
3
3
POS 1
2
4 5
3
C1
POS 1
2
3
____
C1-2
C1-2
C1-2
C2-5
C1-2
C2-5
2
1
2 3
POS 1
3
C1
C2
POS 1
2
3
F
2 3
4 5 6
POS 1
3
A
Positions 1 & 3
90° Angular Throw
B
Position 1
90° Angular Throw
D
Positions 1, 2 & 3
45° Angular Throw
E
Position 2
45° Angular Throw
CONTACT MATERIAL & RATING
Gold over Copper
Logic Level
0.4VA maximum @ 28V AC/DC maximum
13
Double Throw Model
Three Throw Model
Double Throw Model
Three Throw Model
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F23
Supplement
Accessories
Indicators
Straight PC Terminals with Bracket
30
Right Angle PC Terminals
Touch
TERMINALS
Tilt
G
Tactiles
Slides
KEY REMOVABLE
Rotaries
2
Keylocks
Programmable Illuminated PB
C1
C2
Pushbuttons
Rockers
= Key Removable
= Not Removable
= Maximum Arc
Toggles
Series SK
Toggles
Process Sealed Keylocks
KEYS
Rockers
AT4080 Standard
Antistatic Plastic Handle
Brass Alloy with Bright Nickel Plating
& ABS Resin Handle
2 keys supplied with each switch
(5.0)
.197
(20.0)
.787
Pushbuttons
(1.5)
.059
(14.5)
.571
(10.1)
.398
PCB
Suitable for all Straight PCB mount and for Right Angle
PCB mount where clearance for key is obtainable.
(16.0)
.630
Programmable Illuminated PB
AT4079 for Right Angle Mid-board Mounting
(Optional) All Metal
Brass Alloy with Bright Nickel Plating
Contact factory if metal keys needed
(14.0)
.551
(1.5)
.059
(8.8)
.346
(2.0)
.079
PCB
Disposable Boot
F
Each switch is supplied with a boot that provides protection from
automated soldering and the cleaning process. Attach the boot
without the key installed in the switch.
The boot is not reusable; discard after the washing procedure.
Rotaries
Keylocks
Polyvinyl Chloride
TYPICAL SWITCH DIMENSIONS
Straight PC with Bracket • Double Throw
POS 1
Slides
Single & Double Pole
(0.5) Typ
.020
(2.54)
.100
(1.0)
.039
1
2
(0.7) Dia Typ
.028
4
5
Tactiles
90°
(12.0) Dia
.472
POS 3
(20.0)
.787
(5.08) Typ
.200
(2.54) Typ
.100
(10.5)
.413
(3.5)
.138
(15.74)
.620
C1
C2
(3.0)
.118
(14.5)
.571
(14.8)
.583
(0.3)
.012
(10.5)
.413
(0.7) Typ
.028
(10.16)
.400
Tilt
Touch
SK12AG13
Single Pole models have only terminals 1, 2 & C1
Straight PC with Bracket • Three Throw
Indicators
POS 2
45°
POS 1
(12.0) Dia
.472
45°
POS 3
(1.0)
.039
(20.0)
.787
Single & Double Pole
(0.5) Typ
.020
(2.54)
.100
1
2
(0.7) Dia Typ
.028
4
5
6
C2
Accessories
(5.08) Typ
.200
(2.54) Typ
.100
(10.5)
.413
(3.5)
.138
3
C1
(15.74)
.620
Supplement
(14.5)
.571
(3.0)
.118
(14.8)
.583
(0.3)
.012
(10.5)
.413
(0.7) Typ
.028
(10.16)
.400
SK24DG13
F24
Single Pole models have only terminals 1, 2, 3 & C1
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