Tactile Switches KSR Series Subminiature Tact Switch for SMT Features/Benefits Typical Applications 4 actuation forces Automotive G terminations Medical equipment N.O. and N.C. Industrial electronics Detect type available Smart meters Rubber actuator RoHS compliant and compatible B Specification Electrical Silver Gold MAXIMUM POWER: 1 VA 0.2 VA FUNCTION: momentary action CONTACT ARRANGEMENT: MAXIMUM VOLTAGE: 32 VDC 32 VDC Normally Open (standard versions) MINIMUM VOLTAGE: 20 mV 20 mV Normally Closed (NC versions) MAXIMUM CURRENT DC: 50 mA 10 mA TERMINALS: Gullwing type for SMT MINIMUM CURRENT DC: 1 mA 1 mA CONTACT RESISTANCE: 100 m Mechanical INSULATION RESISTANCE: (100 V): 1G (between terminals) Operating force Operating life Travel BOUNCE TIME: 1 ms max. Type Newtons (grams) (operations) (mm) KSR211G LFS / KSR213G LFG 1,5 < 1,85 (185) < 2,2 100,000 0,25 0,15 Environmental Silver Gold KSR221G LFS / KSR223G LFG 1,9 < 2,25 (225) < 2,6 100,000 0,3 0,15 OPERATING TEMPERATURE: -40C to 85C -40C to 125C KSR231G LFS /KSR233G LFG 2,25 < 3,00 (300)< 3,75 100,000 0,35 0,15 STORAGE TEMPERATURE: -55C to 85C -55C to 125C KSR251G LFS / KSR253G LFG 3,4 < 4,50 (450) < 5,6 100,000 0,5 0,15 KSR221G NC LFS 1,5 < 2,25 (225) < 3 30,000 0,3 0,15 KSR223G NC LFG 1,5 < 2 (200) < 2,5 30,000 0,3 0,15 Process SOLDERING: Lead free reflow soldering process in accordance Overload: 20 Newtons with IEC 61760-1. Detect switch versions are available. Please see Detect chapter NOTE: Specifications listed above are for switches with standard options. KSR2D/M series. For information on specific and custom switches, consult Customer Service Center. Packaging Switches are delivered on continuous tape, in reels of 2,500 pieces. 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. However, please note that all the combinations of these options are not feasible. For any part number different from those listed above, please consult your local representative. K S R 2 G Actuator 2 Soft actuator LFS RoHS compliant and compatible. Silver plated. Operating Force LFG RoHS compliant and compatible. Gold plated. 1 1.8 N (180 grams) Switch Function 2 2.0 N (200 grams) (NONE) Normally open 3 3.0 N (300 grams) NC Normally closed* 5 4.5 N (450 grams) Termination Contact Material G Gull wing 1 Silver 3 Gold *Available on KSR22xG only. Dimensions are shown: mm Specifications and dimensions subject to change 23 Jun 21 www.ckswitches.com B66Tactile Switches KSR Series Subminiature Tact Switch for SMT KSR 1,9 7,3 B 6 Recommended PCB layout 6 8 TAPE & REEL 2,8 8 A 0,25 22 4 1,5 2,1 1,5 A 4 DIRECTION OF FEED Dimensions are shown: mm Specifications and dimensions subject to change www.ckswitches.com B67 23 Jun 21 6,25 7,65 12 5,5 1,75 1,4 1 1,75 2,5 3,8