Process Sealed Keylocks
Series SK
Toggles
Electrical Capacity (Resistive Load)
Logic Level:
Other Ratings
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Nominal Operating Torque:
Contact Timing:
Angle of Throw:
F
Materials & Finishes
Environmental Data
Operating Temperature Range:
–25°C through +70°C (–13°F through +158°F)
Humidity:
90 ~ 95% humidity for 240 hours @ 40°C (104°F)
Vibration:
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
Shock:
50G (490m/s
2
) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
PCB Processing
Soldering:
Cleaning:
Standards & Certifications
www.nkkswitches.com
F19
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.
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.
Touch
Tilt
Tactiles
Tumbler Barrel:
Bushing:
Bracket:
Base:
Movable Contactor:
Stationary Contacts:
Terminals:
Slides
Rotaries
Boot:
Key:
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
Keylocks
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
Programmable Illuminated PB
Pushbuttons
0.4VA maximum @ 28V AC/DC maximum
(Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
See Supplement section to find explanation of operating range
Rockers
General
Specifications
Series SK
Toggles
Process Sealed Keylocks
Rockers
Distinctive
Characteristics
Sealed body construction plus disposable boot protect contacts
and allow automated processing.
Molded-in terminals seal out flux, solvents, and
other contaminants.
Programmable Illuminated PB
Pushbuttons
Short body size for space-saving, behind panel
dimensions.
Keylocks
F
Detent mechanism, with its spring-operated
steel ball, gives crisp, positive action for
accurate switch setting.
Rotaries
Bifurcated, self-wiping contact mechanism
provides unequalled logic-level reliability
and smoother, positive detent actuation.
Slides
Tactiles
Crimped bracket legs ensure secure PCB
mounting and prevent dislodging during
automated wave soldering.
.100” x .100” (2.54mm x 2.54mm) terminal
spacing conforms to standard PC board grid
spacing.
Actual Size
Supplement
Accessories
Indicators
Touch
Tilt
F20
www.nkkswitches.com
Process Sealed Keylocks
TYPICAL SWITCH ORDERING EXAMPLE
Series SK
Toggles
Poles
1
2
SPDT
SP3T
DPDT
DP3T
G
Contact Material
Gold Rated 0.4VA
@ 28V AC/DC
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
13
30
Straight with Bracket
Right Angle
F
SK24EG30
Gold Contacts Rated 0.4VA
DP3T ON-ON-ON Circuit
Key Removable in Position 2
Right Angle PC Terminals
www.nkkswitches.com
F21
Supplement
Accessories
2 Keys Supplied with each Switch
Indicators
Touch
Tilt
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
Tactiles
Slides
( ) = Momentary
*Can be used as ON-OFF-ON circuit
Rotaries
Keylocks
Circuits & Key-Removable Positions
PC Terminals
Programmable Illuminated PB
Pushbuttons
SK
2
4E
G
30
Rockers
Series SK
Toggles
Process Sealed Keylocks
POLES, CIRCUITS & KEY-REMOVABLE POSITIONS
Rockers
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)
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
Schematic
C1
•
= Key Removable
= Not Removable
= Maximum Arc
POS 1
3
POS 1
Pushbuttons
1
2
POS 1
3
Programmable Illuminated PB
C1
C2
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
Keylocks
F
C1
C2
POS 1
2
3
Rotaries
2
2 3
4 5 6
POS 1
3
Slides
KEY REMOVABLE
A
Tactiles
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
Tilt
G
Gold over Copper
Logic Level
0.4VA maximum @ 28V AC/DC maximum
Touch
TERMINALS
13
Indicators
Straight PC Terminals with Bracket
Double Throw Model
Three Throw Model
30
Right Angle PC Terminals
Double Throw Model
Three Throw Model
Supplement
Accessories
F22
www.nkkswitches.com
Process Sealed Keylocks
KEYS
AT4080 Standard
Antistatic Plastic Handle
Brass Alloy with Bright Nickel Plating
& ABS Resin Handle
2 keys supplied with each switch
(1.5)
.059
(10.1)
.398
(20.0)
.787
Series SK
(5.0)
.197
PCB
Suitable for all Straight PCB mount and for Right Angle
PCB mount where clearance for key is obtainable.
(16.0)
.630
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
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.
Polyvinyl Chloride
F
TYPICAL SWITCH DIMENSIONS
Single & Double Pole
POS 1
90°
(12.0) Dia
.472
(1.0)
.039
POS 3
(20.0)
.787
(5.08) Typ
.200
(2.54) Typ
.100
(10.5)
.413
(3.5)
.138
(10.16)
.400
(0.5) Typ
.020
(2.54)
.100
1
2
(0.7) Dia Typ
.028
4
5
(15.74)
.620
C1
C2
(3.0)
.118
(14.5)
.571
(14.8)
.583
(0.3)
.012
(10.5)
.413
(0.7) Typ
.028
Single & Double Pole
POS 2
45°
POS 1
(12.0) Dia
.472
45°
POS 3
(1.0)
.039
(20.0)
.787
(5.08) Typ
.200
(2.54) Typ
.100
(10.5)
.413
(3.5)
.138
(0.5) Typ
.020
(2.54)
.100
Straight PC with Bracket • Three Throw
(0.7) Dia Typ
.028
4
5
6
C2
1
2
3
C1
Single Pole models have only terminals 1, 2, 3 & C1
www.nkkswitches.com
SK24DG13
F23
Supplement
(14.5)
.571
(3.0)
.118
(14.8)
.583
(0.3)
.012
(10.5)
.413
(0.7) Typ
.028
(10.16)
.400
Accessories
(15.74)
.620
Indicators
Touch
Single Pole models have only terminals 1, 2 & C1
SK12AG13
Tilt
Tactiles
Slides
Straight PC with Bracket • Double Throw
Rotaries
Keylocks
Programmable Illuminated PB
Pushbuttons
(14.5)
.571
Rockers
Toggles
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