Tactile Switches KMR 7 Series Microminiature SMT Top Actuated IP67 Features/Benefits Typical Applications Automotive Watertight IP67 Medical Standard and long life versions Consumer No ground pin Ultra low current capabilities Industrial Excellent tactile feel B Electrical Silver Gold Specification FUNCTION: momentary action MAXIMUM POWER: 1 VA 0.2 VA CONTACT ARRANGEMENT: 1 make contact = SPST, N.O. MAXIMUM VOLTAGE: 32 VDC 32 VDC TERMINALS: Gullwing type for SMT MINIMUM VOLTAGE: 20 mVDC 20 mVDC MAXIMUM CURRENT: 50 mA 10 mA MINIMUM CURRENT: 1 mA* 1 mA* Mechanical DIELECTRIC STRENGTH: 250 Vrms Type NG Operating Operating CONTACT RESISTANCE: 100 m Travel (mm) force See description life INSULATION RESISTANCE: 1G N (grs) (cycles) below BOUNCE TIME: 3 ms KMR711NG LFS 1.2 (120) 0.30 100,000 0.20 mm 0.1 *For ULC version minimum current is 1A at 1.8 VDC KMR711NG ULC LFS 1.2 (120) 0.30 100,000 0.20 mm 0.1 KMR713NG LFG 1.2 (120) 0.30 100,000 0.20 mm 0.1 KMR713NG ULC LFG 1.2 (120) 0.30 100,000 0.20 mm 0.1 Environmental Silver Gold KMR721NG LFS 2.0 (200) 0.50 100,000 0.25 mm 0.1 OPERATING TEMPERATURE: -40C to 85C -40C to 125C KMR721NG ULC LFS 2.0 (200) 0.50 100,000 0.25 mm 0.1 STORAGE TEMPERATURE: -55C to 85C -55C to 125C KMR723NG LFG 2.0 (200) 0.50 100,000 0.25 mm 0.1 KMR723NG ULC LFG 2.0 (200) 0.50 100,000 0.25 mm 0.1 KMR731NG LFS 3.0 (300) 0.75 100,000 0.25 mm 0.1 Process KMR731NG ULC LFS 3.0 (300) 0.75 100,000 0.25 mm 0.1 KMR732NG LFS 3.0 (300) 0.75 300,000 0.25 mm 0.1 Soldering: Lead free reflow soldering process in accordance with KMR732NG ULC LFS 3.0 (300) 0.75 300,000 0.25 mm 0.1 IEC 61760-1. KMR733NG LFG 3.0 (300) 0.75 100,000 0.25 mm 0.1 KMR733NG ULC LFG 3.0 (300) 0.75 100,000 0.25 mm 0.1 Packaging KMR741NG LFS 4.0 (400) 1.00 100,000 0.30 mm 0.1 KMR741NG ULC LFS 4.0 (400) 1.00 100,000 0.30 mm 0.1 In reels of 6,000 pieces KMR742NG LFS 4.0 (400) 1.00 200,000 0.30 mm 0.1 External diameter 330 mm 2 mm KMR742NG ULC LFS 4.0 (400) 1.00 200,000 0.30 mm 0.1 KMR743NG LFG 4.0 (400) 1.00 100,000 0.30 mm 0.1 NOTE: Specifications listed above are for switches with standard options. KMR743NG ULC LFG 4.0 (400) 1.00 100,000 0.30 mm 0.1 For information on specific and custom switches, consult Customer Service Center. TACTILE FEELING: KMR 7 series with actuation force in 2N - 3N - 4N: 25% KMR 7 series with actuation force in 1.2N: 20% Part Number Description For any part number different from those listed above, please consult your local representative. K M R 7 N G Total height 7 2,5 mm LFS Lead free compatible, silver plated LFG Lead free compatible, gold plated Actuation Force 1 1.2 N (120 grams) 2 2 N (200 grams) 3 3 N (300 grams) 4 4 N (400 grams) Low Current capability Void Under standard specification Contact Material Grounding option ULC Low current 1 Silver NG No Ground pin 2 Silver long life 3 Gold * Silver long life is available in 3N and 4N actuation force. For other versions, please contact Customer Service. Dimensions are shown:Dimensions are shown: mmmm Specifications and dimensions subject to changeSpecifications and dimensions subject to change 24 Aug 21 www.ckswitches.comwww.ckswitches.com B23B23KMR 7 Series Microminiature SMT Top Actuated IP67 NG - No Ground Pin ELECTRICAL DIAGRAM 4 1 B 0,1 3 2 4,6 5 4,2 0,2 3,2 RECOMMENDED LAYOUT 4 1 2 3 2,11 TAPE & REEL DE-REELING DIRECTION SECTION A-A OUT OF THE TAPE 0 6 max 2,75 0,1 4 0,1 2 0,05 1,5 0,1 B A A 0 6 max B 0,292 0,02 GROUND TERMINAL 3,03 0,1 Dimensions are shown: mm Specifications and dimensions subject to change 24 Aug 21 www.ckswitches.com B24 Tactile Switches 2,8 0,2 0,6 0,6 +0,3 12 -0,1 5,5 0,05 1,75 1,61 1,4 0,15 2,2 2,5 0,2 2,6 1 0,6 4,95 0,1