KS Single Pole Key Switches Features/Benefits • Positive tactile feel • Variety of cap colors • LED support available • SPST and SPDT configurations • RoHS compliant Typical Applications • Telecommunications • Industrial • Instrumentation Specifications Materials CONTACT RATING: Q contact material: 25mA @ 50V AC .or DC max. ELECTRICAL LIFE: 100,000 actuations. CONTACT RESISTANCE: Below 100 mΩ initial @ 2-4 V DC, 100 mA INSULATION RESISTANCE: 109 Ω min. DIELECTRIC STRENGTH: 1,000 Vrms min. @ sea level. OPERATING TEMPERATURE: -30˚C to 65˚C. SOLDERABILITY: Per MIL-STD-202F method 208D, or EIA RS-186E method 9 (1 hour steam aging). CASE: Glass filled nylon (UL 94V-0). ACTUATOR: Nylon 6/6 or ABS, matte finish, black standard. MOVABLE CONTACT: Q contact material: Stainless steel, silver plated. STATIONARY CONTACTS AND TERMINALS: Q contact material: copper alloy, silver plated. TERMINAL SEAL: Epoxy Note: Specifications and materials listed above are for switches with standard options. For information on specific and custom switches, consult Customer Service Center. 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. K Series KS11 KS12 S C D SPST Off-Mom. SPDT On-Mom. Key Switches Cap R2 Round depression Cap 2 1 3 9 Color Black White Red Gray Terminations C PC Thru-hole Contact Material Silver Q B Gold Seal D No epoxy E Epoxy Dimensions are shown: mm Specifications and dimensions subject to change D–23 www.ck-components.com KS Single Pole Key Switches SERIES KS11 / KS12 2,29 (.090) 7,57 (.298) 3,91 (.154) 0,71 TRAVEL (.028) 12,40 SQ. (.488) 1,50 TYP. (.059) 10,29 SQ. (.405) CAP ø1,57 TYP. (.062) ø0,99 TYP. (.039) FINGER RECESS SWITCH FUNCTION POS. 1 NO. POLES POS. 2 CONNECTED TERMINALS POS. 2 POS. 1 MODEL NO. KS11 SCHEMATIC OFF MOM. OPEN 1 1–3 3 SPST SP KS12 ON MOM. 1–4 1 (COMM) 1–3 SPDT NC 4 3 NO CAP R2 CAP WITH ROUND DEPRESSION 2,29 (.090) OPTION CODE Key Switches D 10,29 SQ. (.405) CAP CAP COLOR 2 1 3 9 BLACK WHITE RED GRAY FINGER RECESS Dimensions are shown: mm Specifications and dimensions subject to change D–24 www.ck-components.com KS Single Pole Key Switches TERMINATION C PC THRU-HOLE PC MOUNTING 1,14 STANDOFF (.045) 1,02 TYP. (.040) 4,04 (.159) 0,41 THK. (.016) 2,54 (.100) 2,39 (.094) 2,39 (.094) MULTIPLE SWITCH SPACING 2,39 (.094) 2,39 (.094) 5,08 (.200) 5,08 (.200) .500 (12,70) .500 (12,70) 2,54 (.100) 2,54 (.100) 2,54 ø1,22 TYP. (.100) (.048) 2,54 (.100) 2,54 (.100) 2,54 (.100) 2,54 (.100) ø1,22 TYP. (.048) KS12 KS11 CONTACT MATERIAL OPTION CODE Q B CONTACT MATERIAL TERMINAL PLATING SILVER2 SILVER2 POWER 25 mA MAX. @ 50 V AC OR DC MAX. GOLD1 GOLD1 LOW LEVEL/DRY CIRCUIT 0.4 VA MAX. @ 20 V AC OR DC MAX. RATINGS 1) MOVABLE CONTACT: Stainless steel, with gold plate over nickel plate. STATIONARY CONTACTS & ALL TERMINALS: Copper alloy, with gold plate over nickel plate. NOTE: Any models supplied with Q or B contact material are RoHS compliant. 2) MOVABLE CONTACT: Stainless steel, silver plated. STATIONARY CONTACTS & ALL TERMINALS: Copper alloy, silver plated. SEAL D NO EPOXY SEAL E D EPOXY SEAL Key Switches EPOXY Dimensions are shown: mm Specifications and dimensions subject to change D–25 www.ck-components.com