Key Switches
K12
High Performance Key Switches
Features/Benefits Typical Applications
Excellent tactile feel Automotive
Wide choice of LED colors, Off-road transportation
travel and actuator forces
Industrial electronics
High reliability / long life
Computers & network equipment
Sealed version available
Joysticks
Designed for low-level switching
Double stroke version available
Detector version available
Electrical
Construction:
SWITCHING POWER MIN./MAX.: 0.02mW/3 W
FUNCTION: momentary
SWITCHING VOLTAGE MIN./MAX.: 2 V DC / 30 V DC
DISTANCE BETWEEN BUTTON CENTERS:
SWITCHING CURRENT MIN./MAX.: 10 mA /100 mA
min. 11 (0.433) K12C = 13 (0.512)
DIELECTRIC STRENGTH (50 Hz, 1 min): 500 V
TERMINALS: PC pins, tinned
6
MOUNTING: Locating pins; K12G and K12P additionally OPERATING LIFE with max. switching power: 10 operations
4
with snap-in housing K12G & K12GO; operating life of second switch 5 x 10 operations,
operating life K12C and version with more than 6N (7N, 9N 20N)
please consult factory.
Mechanical
CONTACT RESISTANCE: Initial 50 m
TOTAL TRAVEL: 1 mm, 1,5 mm, 2 mm
10
INSULATION RESISTANCE: 10
SWITCHING TRAVEL: 0,6 mm*
BOUNCE TIME: 1 ms
OPERATING FORCE: 1.5 N OD without snap-point as detector
Operating speed 100 mm/s (3.94/s)
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.
Environmental
PROTECTION CLASS: K12C IP 67 (dust tight, protected against
the effects of immersion in water; other versions IP 40) OPERATING TEMPERATURE: -40C to 85C.
STORAGE TEMPERATURE: -40C to 95C.
* Additional switching travel (with pre-travel) available by request.
Packaging Process
Bulk in boxes of 250 pieces (version C or GO) or SOLDERABILITY:
300 pieces (version A, AL, P or PL) Wave soldering, compatible with lead free soldering profile
Hand soldering, 350C
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.
D
Note: Some of the configurations may not be available or could require some development.
K 1 2
Series
K12A No snap-in pegs
K12AL No snap-in pegs with central LED
Standard LED Code
LED Color
K12P With snap-in pegs
NONE No LED
NONE No LED
K12PL With central LED LV306 Green
GN Green
K12C Sealed contact with rubber cap (IP 67)
LV327 Yellow
YE Yellow
K12GO Two-step switch
LV315 Orange
OG Orange
LV352 Red
RD Red
LV302 White
WH White
LV328 Blue
BU Blue
Cap Color
Operating Force***
NONE version with LED, version C
1.5N OD 1.5 N without
BK Black cap No LED
Contact
Travel* snap-point
YE Yellow cap - No LED
1 1 mm (0.039) 2.5N 2.5 N Arrangement
RD Red cap No LED
NONE SPST NO (STD)
1.5 1.5 mm (0.059) 3.5N 3.5 N
GY Gray cap No LED
1R SPST NC
2 2 mm (0.079) 5N 5 N
* K12C 1mm MAX 3.5/7N 3.5/7 N** (Special request)
K12 with LED 1.5 mm MAX 6/12N 6/12 N**
** K12G & K12GO version only
*** Additional operating force: 7N, 9N available on request
Dimensions are shown: mm
Specifications and dimensions subject to change
15 Nov 18
www.ckswitches.com
D912
[.472]
K12
High Performance Key Switches
SERIES
K12A without snap in
total travel 1 or 1.5mm
PCB LAYOUT, MOUNTING SIDE
7,5
[.295]
1
[.0394]
2,6
[.103]
9,8
[.386]
10,9
[.429]
K12AL
3
[.118]
PCB LAYOUT, MOUNTING SIDE
+0,05
2x 1,1
D 2,6 0
ELECTRICAL GRAPH
C
2,5
A
PCB
2
1
2
4x 0,9 0,05
1
A
7,5
C
4,6
A
[.181]
5,6
[.22]
+0,05
2x 2x center hole
1,1
2x LED 0,5 (.020)
Sn
0,05
0,9
2x 2x switch
0,7x0,2 (.028x.081) Sn
A
Without
Hole with LED Description Terminal Section Surface
1
2
C
Dimensions are shown: mm
Specifications and dimensions subject to change
15 Nov 18
www.ckswitches.com
D10
Key Switches
5,5
[.217]
11
[.433]
1,5
[.0591]
9
[.354]
2.9 11
.4334]
[.1141]
3,6
2,5
0,2
2,5
0,2
[.007]
2,5
[.098]
2,5
[.098]
K12