KM1202A05BE

KM Series Subminiature Pushbutton Switches Features/Benefits • Reliable contact design • Available with pretravel and overtravel Typical Applications • Alarm systems • Computers • Detector switch application A Pushbutton • Extended overtravel option • RoHS compliant Models Available Specifications CONTACT RATING: Q contact material (KM11, KM12 Models): 0.25 AMPS @ 125 V AC or DC (UL); (KM33 Model): 1 AMP @ 125 V AC or 28 V DC. See page A-69 for additional ratings. ELECTRICAL LIFE: 10,000 actuations min. at full load. CONTACT RESISTANCE: Below 30 mΩ typ. initial @ 2-4 V DC, 100 mA, for both silver and gold plated contacts. INSULATION RESISTANCE: 109Ω min. DIELECTRIC STRENGTH: 1,000 Vrms min. @ sea level. OPERATING TEMPERATURE: –30ºC to 85ºC. CAP INSTALLATION FORCE: 10 lbs. max. permissible. NOTE: Any models supplied with Q or B contact material are RoHS compliant. NOTE: Specifications and materials listed above are for switches with standard options. For information on specific and custom switches, consult Customer Service Center. Materials HOUSING & BUSHING: 6/6 nylon (UL94V-2), black. ACTUATOR: 6/6 nylon (UL 94V-2), natural. Internal o-ring seal, available on KM11 & KM33 models. MOVABLE CONTACT: B contact material: Bronze or copper, with gold plate over nickel plate. See page A-69 for additional contact materials. STATIONARY CONTACTS & TERMINALS: B contact material: Copper, with gold plate over nickel plate. See page A-69 for additional contact materials. RETURN SPRING: Music wire, phosphor coated. MOUNTING NUT: Brass, nickel plated. TERMINAL SEAL: Epoxy. Build-A-Switch To order, simply select desired option from each category and place in the appropriate box. Available options are shown and described on pages A-68 and A-70. For additional options not shown in catalog, consult Customer Service Center. Switch Function KM12 On-Mom., SPDT KM11 Off-Mom., SPST, N.O. KM33 On-Mom., SPST, N.C. Actuator 02 .398" high, .122" dia. KM12 01 .122" dia. KM11, Stepped, .108” dia. KM33 Bushing/Mounting Style A Right angle RR 1/4-40 thread, .225" high Terminations 05 .110" quick connect 08 Right angle, PC thru-hole 02 PC Thru-hole Contact Material B Gold Q Silver Seal NONE No seal E Epoxy Dimensions are shown: Inches (mm) Specifications and dimensions subject to change A-67 www.ck-components.com KM Series Subminiature Pushbutton Switches A SWITCH FUNCTION SWITCH FUNCTION POS. 1 POS. 2 CONNECTED TERMINALS POS. 1 POS. 2 Pushbutton NO. POLES MODEL NO. SCHEMATIC KM11 SP OFF MOM. OPEN 2-1 SPST N.O. KM33 ON MOM. 2-1 OPEN SPST N.C. SPST Part number shown: KM1101RR05BE SP KM12 ON MOM. 2-1 4-3 SPDT SPDT Part number shown: KM1202A08BE ACTUATOR 02 .398" HIGH, .122" DIA. 01 .122" DIA. KM12 models only. KM11 models only. KM33 models only. NOTE: Caps available for plunger options, see page A-70. Third Angle Projection Dimensions are shown: Inches (mm) Specifications and dimensions subject to change A-68 www.ck-components.com KM Series Subminiature Pushbutton Switches BUSHING/ MOUNTING STYLE A RIGHT ANGLE A 1/4-40 THREAD, .225" HIGH RR Pushbutton KM12 models only. PANEL MOUNTING KM11 & KM33 models only. PC MOUNTING KM11 & KM33 models. KM11 models only. KM12 models only. TERMINATIONS 05 .110" QUICK CONNECT 08 RIGHT ANGLE, PC THRU-HOLE 02 PC THRU-HOLE KM12 models only. KM11 models only. CONTACT MATERIAL OPTION CODE RoHS COMPLIANT * YES RoHS COMPATIBLE * YES CONTACT AND TERMINAL MATERIAL RATINGS B Q GOLD 1 SILVER 2 LOW LEVEL/DRY CIRCUIT 0.4 VA MAX. @ 20 V AC OR DC MAX. 0.25 AMPS @ 125 V AC OR DC (KM11, KM12) (UL) 1 AMP @ 125 V AC OR 28 V DC (KM33). YES YES POWER * Note: See Technical Data section of this catalog for RoHS compliant and compatible definitions and specifications. 1 STATIONARY CONTACTS & TERMINALS: Copper, with gold plate over nickel plate. MOVABLE CONTACT: Phosphor bronze or beryllium copper, with gold plate over nickel plate. 2 STATIONARY CONTACTS & TERMINALS: Copper, silver plated (standard with all termination options). MOVABLE CONTACT: Phosphor bronze or beryllium copper, silver plated. 3 STATIONARY CONTACTS & TERMINALS: Copper, with gold plate over nickel plate over silver plate. MOVABLE CONTACT: Phosphor bronze or beryllium copper, with gold plate over nickel plate over silver plate. NOTE: Any models supplied with Q or B contact material are RoHS compliant. KM11, KM12 models when ordered with ‘Q’ contact material. SEAL NONE NO SEAL E EPOXY SEAL Third Angle Projection Dimensions are shown: Inches (mm) Specifications and dimensions subject to change A-69 www.ck-components.com KM Series Subminiature Pushbutton Switches A AVAILABLE HARDWARE Cap, KM33 models Cap, KM11 models Cap, KM11 models Pushbutton .245 DIA. (6,22 ) .187 (4,75) .120 (3,05) .200 DIA. (5,08 ) .375 DIA. (9,53 ) .250 (6,35) .081 (2,03) .155 (3,94) .120 (3,05) PART NO. PART NO. WHITE BLACK RED PART NO. WHITE BLACK RED 785101000 785102000 785103000 Material: Nylon Finish: Gloss 708901000 708902000 708903000 Material: Nylon Finish: Gloss 752701000 752702000 752703000 Material: Nylon Finish: Gloss WHITE BLACK RED Cap, KM11 models Cap, KM11 models .310 DIA. (7,87 ) .138 (3,51) .250 (6,35) .195 (4,95) .450 SQ. (11,43) .240 (6,10) PART NO. PART NO. PART NO. WHITE BLACK RED 801801000 801802000 801803000 Material: Nylon Finish: Gloss WHITE BLACK RED 484601000 484602000 484603000 Material: Nylon Finish: Gloss 798201000 798202263 798203000 Material: Nylon Finish: Matte WHITE BLACK RED NOTE: Other cap colors available, consult Customer Service Center. Third Angle Projection Dimensions are shown: Inches (mm) Specifications and dimensions subject to change A-70 www.ck-components.com