SK Series Process Sealed Keylocks Datasheet by NKK Switches

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F
Series SK
Process Sealed Keylocks
F19
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries PushbuttonsIlluminated PBSlides Programmable
Touch Tilt Toggles
Rockers
www.nkkswitches.com
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
Other Ratings
Contact Resistance: 80 milliohms maximum
Insulation Resistance: 100 megohms minimum @ 500V DC
Dielectric Strength: 500V AC minimum for 1 minute minimum
Mechanical Life: 30,000 cycles minimum
Electrical Life: 10,000 cycles minimum
Nominal Operating Torque: .026Nm (.234 lbin) for momentary action models
.020Nm (.182 lbin) for maintained action models
Contact Timing: Break-before-make
Angle of Throw: 90° for 2-position & 45° for 3-position
Materials & Finishes
Boot: Polyvinyl chloride
Key: Brass alloy with bright nickel plating;
brass alloy with bright nickel plating & ABS resin handle
Tumbler Barrel: Polyacetal
Bushing: Zinc alloy with nickel plating
Bracket: Steel with tin plating
Base: Glass fiber reinforced polyamide
Movable Contactor: Beryllium copper with gold plating
Stationary Contacts: Copper with gold plating
Terminals: Brass with tin plating
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/s2) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
PCB Processing
Soldering: Wave Soldering recommended: See Profile B in Supplement section.
Manual Soldering: See Profile B in Supplement section.
Cleaning: Automated cleaning. Boot must be on switch during processing.
See Cleaning specifications in Supplement section.
Standards & Certifications
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.
General Specifications
D. L955
F
Series SK Process Sealed Keylocks
F20
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
Illuminated PB
Slides Programmable
Touch Tilt Rockers Toggles
www.nkkswitches.com
Actual Size
Sealed body construction plus disposable boot protect contacts
and allow automated processing.
Molded-in terminals seal out flux, solvents, and
other contaminants.
Short body size for space-saving, behind panel
dimensions.
Detent mechanism, with its spring-operated
steel ball, gives crisp, positive action for
accurate switch setting.
Bifurcated, self-wiping contact mechanism
provides unequalled logic-level reliability
and smoother, positive detent actuation.
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.
Distinctive Characteristics
4E 3O
F
Series SK
Process Sealed Keylocks
F21
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries PushbuttonsIlluminated PBSlides Programmable
Touch Tilt Toggles
Rockers
www.nkkswitches.com
TYPICAL SWITCH ORDERING EXAMPLE
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
SK24EG30
PC Terminals
13 Straight with Bracket
30 Right Angle
Circuits & Key-Removable Positions
Code Pos. 1 Pos. 2 Pos. 3 Key Removes
2A ON NONE ON Positions 1 and 3
2B ON NONE ON Position 1
5B ON NONE (ON) Position 1
*4D ON ON ON Positions 1, 2, 3
*4E ON ON ON Position 2
( ) = Momentary
*Can be used as ON-OFF-ON circuit
Contact Material
GGold Rated 0.4VA
@ 28V AC/DC
SK 4E2 G 30
Poles
1SPDT
SP3T
2DPDT
DP3T
Gold Contacts Rated 0.4VA
DP3T ON-ON-ON Circuit
Key Removable in Position 2 Right Angle PC Terminals
2 Keys Supplied with each Switch
2 a V “<32: 21/.“="" (1="" c1="" 1234m="" d.="" k]:="">
F
Series SK Process Sealed Keylocks
F22
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
Illuminated PB
Slides Programmable
Touch Tilt Rockers Toggles
www.nkkswitches.com
KEY REMOVABLE
Pole &
Throw Model
Key Positions
Pos 1 Pos 2 Pos 3
Connected Terminals
(Terminal numbers are not on switch)
Pos 1 Pos 2 Pos 3 Schematic
= Key Removable
= Not Removable
= Maximum Arc
SPDT SK12A ON NONE ON C1-1 ____ C1-2
SPDT
SPDT
SK12B
SK15B
ON
ON
NONE
NONE
ON
(ON) C1-1 ____ C1-2
DPDT SK22A ON NONE ON C1-1
C2-4
____ C1-2
C2-5
DPDT
DPDT
SK22B
SK25B
ON
ON
NONE
NONE
ON
(ON)
C1-1
C2-4
____ C1-2
C2-5
SP3T SK14D ON ON ON C1-1 C1-2 C1-3
SP3T SK14E ON ON ON C1-1 C1-2 C1-3
DP3T SK24D ON ON ON C1-1
C2-4
C1-2
C2-5
C1-3
C2-6
DP3T SK24E ON ON ON C1-1
C2-4
C1-2
C2-5
C1-3
C2-6
Positions 1 & 3
90° Angular Throw
POLES, CIRCUITS & KEY-REMOVABLE POSITIONS
A
POS 1
3
POS 1
3
POS
1
2
3
POS
1
2
3
Position 1
90° Angular Throw
BPositions 1, 2 & 3
45° Angular Throw
DPosition 2
45° Angular Throw
E
TERMINALS
Straight PC Terminals with Bracket
13
Right Angle PC Terminals
30
12
C1
12 45
C1 C2
12
C1
3
POS 1
3
POS 1
3
POS
1
2
3
POS
1
2
3
CONTACT MATERIAL & RATING
Gold over Copper Logic Level 0.4VA maximum @ 28V AC/DC maximum
G
Double Throw Model Three Throw Model Double Throw Model Three Throw Model
F
Series SK
Process Sealed Keylocks
F23
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries PushbuttonsIlluminated PBSlides Programmable
Touch Tilt Toggles
Rockers
www.nkkswitches.com
TYPICAL SWITCH DIMENSIONS
Single & Double Pole Straight PC with Bracket • Double Throw
Single & Double Pole Straight PC with Bracket • Three Throw
Single Pole models have only terminals 1, 2 & C1 SK12AG13
Single Pole models have only terminals 1, 2, 3 & C1 SK24DG13
KEYS
Suitable for all Straight PCB mount and for Right Angle
PCB mount where clearance for key is obtainable.
AT4080 Standard
Antistatic Plastic Handle
Brass Alloy with Bright Nickel Plating
& ABS Resin Handle
2 keys supplied with each switch
(5.0)
.197
(1.5)
.059
(10.1)
.398
(14.5)
.571
(20.0)
.787
PCB
PCB
(2.0)
.079
(16.0)
.630
(14.0)
.551
(8.8)
.346
(1.5)
.059
(12.0) Dia
.472
90°
POS 1
POS
3
(14.5)
.571
(20.0)
.787
(1.0)
.039
(3.0)
.118
(14.8)
.583
(0.3)
.012
(10.5)
.413
(10.5)
.413
(3.5)
.138
(2.54) Typ
.100
(5.08) Ty
p
.200
(2.54)
.100
(0.5) Typ
.020
(15.74)
.620
1
2
C1 C2
5
4
(0.7) Typ
.028
(10.16)
.400
(0.7) Dia Typ
.028
45° 45°
POS 2
POS 1 POS
3
(12.0) Dia
.472
(14.5)
.571
(20.0)
.787
(1.0)
.039
(3.0)
.118
(14.8)
.583
(0.3)
.012
(10.5)
.413
(10.5)
.413
(3.5)
.138
(2.54) Typ
.100
(5.08) Ty
p
.200
(2.54)
.100
(0.5) Typ
.020
(15.74)
.620
1
2
C1 C2
5
4
(0.7) Typ
.028
(10.16)
.400
(0.7) Dia Typ
.028
36
AT4079 for Right Angle Mid-board Mounting
(Optional) All Metal
Brass Alloy with Bright Nickel Plating
Contact factory if metal keys needed
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
nl(l(
F
Series SK Process Sealed Keylocks
F24
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
Illuminated PB
Slides Programmable
Touch Tilt Rockers Toggles
www.nkkswitches.com
(16.3)
.642
(9.0)
.354
(2.54)
Typ
.100
(2.54)
.100
(5.08)
.200
(3.5)
.138
C1123
TYPICAL SWITCH DIMENSIONS
SK15BG30 Key in Position 3 Double Pole
SK24EG30 Key in Position 1 Double Pole
Straight PC Footprints
Right Angle PC Footprints
(2.54) Typ
.100
(0.8) Dia Ty
p
.031
(5.08)
.200
(10.16)
.400
1
2
C1
3
(2.54) Typ
.100
(0.8) Dia Ty
p
.031
(5.08)
.200
(10.16)
.400
4
5
C2
1
2
C1
3
6
SPDT DPDT SP3T DP3T
SPDT DPDT SP3T DP3T
(7.62)
.300
(2.54)
.100
(5.08)
.200
(0.8) Dia Ty
p
.031
(2.54)
.100
(2.54) Typ
.100
1
2
C
L
C1
(7.62)
.300
(2.54)
.100
(5.08)
.200
(0.8) Dia Ty
p
.031
(2.54)
.100
(2.54) Typ
.100
1
2
C
L
C1
C2 4
5
(7.62)
.300
(2.54)
.100
(5.08)
.200
(0.8) Dia Ty
p
.031
(2.54)
.100
(2.54) Typ
.100
1
2
C
L
C1
C2 4
5
3
6
(12.0) Dia
.472
90°
(0.5) Typ
.020
(15.24)
.600
POS
1
POS 3
(14.8)
.583
(5.0)
.197
(12.4)
.488
(10.5)
.413
(0.7) Typ
.028
(7.62)
.300
(0.7) Dia
.028
(2.54)
.100
(1.0)
.039
(3.0)
.118
(20.0)
.787
(16.3)
.642
(9.0)
.354
(2.54)
Typ
.100
(2.54)
.100
(5.08)
.200
(3.5)
.138
C11 2
(9.0)
.354
(16.3)
.642
(2.54)
Typ
.100
(2.54)
.100
(5.08)
.200
(3.5)
.138
C1
12
(0.7) Dia Typ
.028
C2
5
4
(12.0) Dia
.472
45°
(0.5) Typ
.020
(15.24)
.600
45°
POS 1
POS
2
POS 3
(3.0)
.118
(12.4)
.488
(14.8)
.583
(5.0)
.197
(10.5)
.413
(0.7) Typ
.028
(7.62)
.300
(0.7) Dia
.028
(2.54)
.100
(9.0)
.354
(16.3)
.642
(2.54)
Typ
.100
(2.54)
.100
(5.08)
.200
(3.5)
.138
C1
12
(0.7) Dia Typ
.028
C2
5
4
3
6
(7.62)
.300
(2.54)
.100
(5.08)
.200
(0.8) Dia Ty
p
.031
(2.54)
.100
(2.54) Typ
.100
1
2
C
L
C1 3
(2.54) Typ
.100
(0.8) Dia Ty
p
.031
(5.08)
.200
(10.16)
.400
1
2
C1
(15.24)
.600
(2.54) Typ
.100
(0.8) Dia Ty
p
.031
(5.08)
.200
(10.16)
.400
4
5
C2
1
2
C1
(15.24)
.600
Right Angle Key in Position 1 Single Pole
PC Terminals
Double Throw
Right Angle Key in Position 2 Single Pole
PC Terminals
Three Throw

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