www.ck-components.com
E–10
Dimensions are shown: mm (inch)
Specifications and dimensions subject to change
Key Switches
E
K12
High Performance Key Switches
How To Order
Our easy build-a-switch concept allows you to mix and match options to create the switch you need. To order, select
desired option from each category and place it in the appropriate box.
Features/Benefits
•Excellent tactile feel
•Wide choice of LED colors,
travel and actuator forces
•High reliability / long life
•Sealed version available
•Designed for low-level switching
•Double stroke version available
•Detector version available
Series
K12A No snap-in pegs
K12AL No snap-in pegs with central LED
K12P With snap-in pegs
K12PL With central LED
K12C Sealed contact with rubber cap (IP 67)
K12GO Two-step switch without side LED holder
K12GOL K12GO with central LED
LED Color
NONE No LED
GN Green
YE Yellow
OG Orange
RD Red
WH White
BU Blue
Travel*
11 mm (0.039)
1.5 1.5 mm (0.059)
22 mm (0.079)
Operating Force***
1.5N OD 1.5 N without
snap-point
2.5N 2.5 N
3.5N 3.5 N
5N 5 N
3.5/7N 3.5/7 N**
6/12N 6/12 N**
2K 1 L
Standard LED Code
NONE No LED
L306 Green
L327 Yellow
L315 Orange
L352 Red
L302 White
L328 Blue
* K12C – 1mm MAX
K12 with LED – 1.5 mm MAX
** K12G & K12GO version only
*** Additional operating force: 7N, 9N, 20N available on request
Cap Color
NONE version with LED, version C
BK Black cap – No LED
Typical Applications
•Automotive
•Off-road transportation
•Industrial electronics
•Computers & network equipment
Electrical
SWITCHING POWER MIN./MAX.: 0.02mW/3 W
SWITCHING VOLTAGE MIN./MAX.: 2 V DC / 30 V DC
SWITCHING CURRENT MIN./MAX.: 10 µA /100 mA
DIELECTRIC STRENGTH (50 Hz, 1 min): ≥500 V
OPERATING LIFE with max. switching power: ≥106operations
K12G & K12GO; operating life of second switch 5 x 104operations,
operating life K12C and version with more than 6N (7N, 9N 20N)
please consult factory.
CONTACT RESISTANCE: Initial ≤50 mΩ
INSULATION RESISTANCE: ≥1010 Ω
BOUNCE TIME: ≤1 ms
Operating speed 400 mm/s (15.75/s)
Environmental
OPERATING TEMPERATURE: -40˚C to 85˚C.
STORAGE TEMPERATURE: -40˚C to 95˚C.
Process
SOLDERABILITY:
Max. soldering time and temperature: 5 s at 260˚C
Construction:
FUNCTION: momentary
DISTANCE BETWEEN BUTTON CENTERS:
min. 11 (0.433) K12C = 13 (0.512)
TERMINALS: PC pins, tinned
MOUNTING: Locating pins; K12D, K12G and K12P additionally
with snap-in housing
Mechanical
TOTAL TRAVEL: 1 mm, 1,5 mm, 2 mm
SWITCHING TRAVEL: 0,6 mm*
OPERATING FORCE: 1.5 N OD without snap-point as detector
switch, 2.5 N, 3.5 N, 5 N, 3.5/7 N, 6/12 N. Additional
operating force 7N, 9N and 20N, available on request.
PROTECTION CLASS: K12C IP 67 (dust tight, protected against
the effects of immersion in water; other versions IP 40)
* Additional switching travel (with pre-travel) available by request.
Contact
Arrangement
NONE SPST NO (STD)
1R SPST NC
(Special request)
www.ck-components.com
E–11
Dimensions are shown: mm (inch)
Specifications and dimensions subject to change
Key Switches
E
K12
High Performance Key Switches
SERIES
K12A
K12AL
[.295]
[.103]
[.098]
[.098]
[.007]
0,2
2,5
2,5
2,6
7,5
total travel 1 or 1.5mm
K12
[.386]
[.429]
[.472]
[.0394]
[.354]
.4334]
[.1141]
9,8ø
10,9
11
9
12
1
ø
2.9
[.007]
[.098]
[.098]
[.098]
[.103]
[.295]
2,5
2,6
7,5
0,2
2,5
2,5
3,6
[.181]
[.22]
[.433]
[.0591]
[.217]
[.118]
PCB
K12
K
(LED)
K
4,6ø
3ø
5,5
11
1,5
5,6ø
ø
Terminal Section
Discription
with LED
WithoutSurface
Hole
Sn
switch
LED
2x
center hole
±0,05
Sn
2x
2x
2x
2x
ø0,5 (.020)
0,7x0,2 (.028x.081)
0,9
1,1+0,05
PCB LAYOUT, MOUNTING SIDE
PCB LAYOUT, MOUNTING SIDE
www.ck-components.com
E–12
Dimensions are shown: mm (inch)
Specifications and dimensions subject to change
Key Switches
E
K12
High Performance Key Switches
SERIES
center of actuation area (notice LED)
7,5
(.295)
2,6
(.103)
2,5
(.098)
3,75
(.148)
9,6
(.378)
0,2
(.007)
2,5
(.098)
K12P
PCB LAYOUT, MOUNTING SIDE
K12
1,5
(.059)
3,5
(.138)
total travel 1, 1,5 or 2
(.0394, .0591 or .0787)
12,5
(.492)
9,8
(.386)
10,9 SQ.
(.429)
12,0
(.472)
1,2
(.047)
1,5
(.059)
9,0
(.354)
11,0
(.433)
2,9
(.1141)
ø1,0
(.0394)
K12PL
K LED
coding pin L
center of actuation area (notice LED)
7,5
(.295)
2,6
(.103)
2,5
(.098)
2,6
(.098)
9,6
(.378)
3,75
(.148)
2,5
(.098)
0,2
(.007)
2,5
(.098)
3,6
(.141)
K12
K12
K
ø3,0
(.118)
PCB
pin ø 1.1 (.0433)
for coding of LED color
total travel 1 or 1,5
(.0394 or .0591)
ø4,6
(.181)
5,6
(.22)
11,0
(.433)
1,5
(.0591)
5,5
(.217)
PCB LAYOUT, MOUNTING SIDE
1,7 (.069) 2x snap-in
1,6 (.062) 1x coding hole
(L,M,N)
1,1 (.043) 2x center hole Sn
0,9 (.035) LED m0.5 (.020) Sn
2x switch 0.7 x 0.2 (.028 x .081)
1,7 (.069) 2x snap-in
1,6 (.062) 1x coding hole
(L,M,N)
1,1 (.043) 2x center hole Sn
0,9 (.035) 2x LED m0.5 (.020) Sn
2x switch 0.7 x 0.2 (.028 x .081)
Hole Ø Without LED Description Terminal Section Surface
Hole ØWithout LED Description Terminal Section Surface
www.ck-components.com
E–13
Dimensions are shown: mm (inch)
Specifications and dimensions subject to change
Key Switches
E
SCHEMATIC
A R 1,1 (.043) 2x 2x center hole
0,9 (.035) 2x LED m0.5 (.0204) Sn
2x 2x switch 0.7 x 0.2(.0275 x .0787) Sn
K12
High Performance Key Switches
SERIES
7,5
(.295)
2,3
(.090)
2,5
(.098)
2,5
(.098)
0,2
(.0078)
K12C SEALED CONTACT WITH RUBBER CAP (IP 67)
PCB LAYOUT, MOUNTING SIDE
K12
total travel 1,0
(.0394)
actuation area
ø12,8
(.504)
1,8
(.0709)
12,0
(.472)
10,9
(.429)
12,0
(.472)
5,0
(.197)
5,5
(.217)
2,9
(.114)
1,2
(.047)
2,9
(.114)
10,9
(.429)
Hole ØWithout LED With LED Description Terminal Section Surface
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E–14
Dimensions are shown: mm (inch)
Specifications and dimensions subject to change
Key Switches
E
K12
High Performance Key Switches
SERIES
K12GO
K12GOL
PCB LAYOUT, MOUNTING SIDE
K(LED)
total travel 1,5mm
2/2
1/2
1/1
2/1
K12
K12
PCB
code pin ø1,1
=
3ø
6
1,3
11
3,5
2,9 9
1,5
5,5<
9,8ø
10,9SQ.
12
1,5
5,6
4,6ø
actuation area
(0.118)
(0.0591)
(0.138)
(0.059)
(0.354)
(0.433)
(0.114)
(0.217)
(0.0591)
(0.043)
(0.472)
(0.386)
(0.428)
(0.187)
(0.228)
(0.244)
(0.053)
SCHEMATIC
K12G K12GL
1/2
2/22/1
1/1
2/2
1/2
2/1
1/1
K
1,7 2x 2x snap-in
(.069)
1,6 1x 1x code
(.062)
2x 2 LED Sn
0,9 2x LED m0.5 (.020) Sn
(.035) 2x 2x switch 2 0.7 x 0.3 (.028 x .012) Sn
2x 2x switch 1 0.7 x 0.2 (.028 x .081) Sn
Hole Ø Without LED With LED Description Terminal Section Surface
K12G0 K12GOL
K12G0
K12GOL
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E–15
Dimensions are shown: mm (inch)
Specifications and dimensions subject to change
Key Switches
E
OPTION
CODE OPERATING FORCE
1.5N OD 1.5 N,150g without snap-point
2.5N 2.5 N, 250g
3.5N 3.5 N, 350g
5N 5 N, 500g
3.5/7N 3.5/7 N, 350/700g
6/12N 6/12 N, 600-1200g
OPTION
CODE COLOR
NONE Version with LED
BK Black
K12
High Performance Key Switches
STANDARD
LED CODE COLOR
NONE Models without LED
L306 Green
L327 Yellow
L315 Orange
L352 Red
L302 White
L328 Blue
11 mm
1.5 1.5 mm
22 mm
CAP COLOR
TRAVEL
OPTION
CODE COLOR
NONE Models without LED
GN Green
YE Yellow
OG Orange
RD Red
WH White
BU Blue
LED COLOR
OPERATING FORCE