KT Series
Sealed Tactile Switches
Features/Benefits
S Internal actuator seal and insert molded terminals—
permit soldering and cleaning
S Tin-lead plated terminals—improves solderability
S Tape and reel packaging available
S Right angle surface mount models available
Typical Applications
S Telecommunications
S Computer Products
S Instrumentation
How To Order
Complete part numbers for KT Series Sealed Tactile Switches are shown on pages C-3 thru C-5.
Specifications
Materials
CONTACT RATING: 1.0 VA max. @ 50 V AC or DC max.
HOUSING: Stainless steel.
MECHANICAL & ELECTRICAL LIFE: 100,000 make-and-break
cycles at full load.
CONTACT RESISTANCE: Below 50 milliohms typ. initial @
2-4 V DC, 100 mA.
BASE: LCP or PPA (UL 94V-0).
ACTUATOR: B0, B1, B2 actuators: Silicone rubber.
P2, P3, P4 actuators: Nylon (UL 94V-0).
MOVABLE CONTACT: Stainless steel, silver plated.
STATIONARY CONTACTS: Copper alloy, silver plate over nickel.
C
9
INSULATION RESISTANCE: 10 ohms min.
DIELECTRIC STRENGTH: 250 V RMS min. @ sea level.
TERMINALS: Copper alloy, with tin-lead alloy over nickel plate.
All terminals insert molded.
SEAL: Silicone rubber (UL 94V-0).
OPERATING TEMPERATURE: –40_C to 90_C.
SOLDERABILITY: Per MIL-STD-202F method 208D, or
EIA RS-186E method 9 (1 hour steam aging).
NOTE: Specifications and materials listed above are general specifications for switches
with standard options. For information on specific and custom switches, consult Customer
Service Center.
DEGREE OF PROTECTION: IP57; Protection against harmful dust
deposit, full-scale voltage protection, temporary immersion.
CAUTION: PC mounting layouts and pads as shown are designed to be compatible with the
latest equipment and reflow techniques. Care should be taken in the design and location of
PC lands to suit individual needs. Orientation relative to reflow direction may significantly
impact solder joint integrity.
PACKAGING: Switches supplied in rigid dispensing tubes
or anti-static tape and reels per EIA 481-2, see pages
L-36 and L-37 for drawings and reel information. Tape and
cover strip are conductive for use near statically sensitive
components, consult Customer Service Center.
6.22 x 6.38mm Models
SWITCH FUNCTION
POS. 1
POS. 2
ACTUATOR
HEIGHT
PART NUMBER
KT11B0CM
FLUSH
OFF
OFF
OFF
OFF
OFF
OFF
MOM.
MOM.
MOM.
MOM.
MOM.
MOM.
KT11B0CM
KT11B1CM
KT11B2CM
KT11P2CM
KT11P3CM
KT11P4CM
Conn. Terms
SPST
.025 (0,64)
.088 (2,24)
.093 (2,36)
.044 (1,12)
.156 (3,96)
PC MOUNTING
OPEN
1,2 - 3,4
Schematic
SPST
MOM. = Momentary
With B1 Silicone
Rubber Actuator
With B2 Silicone
Rubber Actuator
With P2 Hard
Plastic Actuator
With P3 Hard
Plastic Actuator
With P4 Hard
Plastic Actuator
C&K Components, Inc. Web Site: www.ckcorp.com Americas Sales Tel: 800-635-5936 Fax: 617-926-6846
Europe Sales Tel: +44-1536-521147 Fax: +44-1536-411602 S Asia Sales Tel: +852-2798-6393 Fax: +852-2751-9926
Rev. A 8/99
C-3