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B–2 Dimensions are shown: mm (inches) Specifications and dimensions subject to change www.ck-components.com Tactile Switches B 24 aug 16 Force Operating life Travel Type (N) (operations) (mm) KSF0M211LFTR 1.5 ± 0.5 100,000 0.25 ± 0.1 KSF0M311LFTR 1.9 ± 0.5 1,000,000 0.25 ± 0.1 KSF0M411LFTR 3.0 ± 0.75 100,000 0.25 ± 0.1 KSF0M511LFTR 5.2 ± 1.0 100,000 0.25 ± 0.1 KSFI0V91170SH LFTR 3.4 ± 0.8 100,000 0.65 ± 0.25 KSF0M212 LFT 1.6 ± 0.4 300,000 0.25 ± 0.1 KSFI0M412 70SHLFT 3.2 ± 0.8 100,000 0.75 ± 0.25 KSF & KSFI Series Soft Actuated Tact Switch Features/Benefits

  • Soft actuated switch
  • Sealed front end
  • Top and side actuated Typical Applications
  • Low profile keyboards
  • Automotive interfaces
  • Industrial control 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. Insertion M Manual (bulk packaging) V Vertical (bulk packaging)** K S L F T0 Contact Material

1 Silver

3 Gold

2 1.5 N (150 grams)* 3 1.9 N (190 grams)* 4 3 N (300 grams)* 5 5.2 N (520 grams)* 9 3.4 N (340 grams)** Sealing

1 IP60

2 IP67 *** note: when selecting this option, part number will end with LFT

RoHS compliant and compatible. Tin plated. Specification FUNCTION: momentary action CONTACT ARRANGEMENT: 1 make contact = SPST, N.O. TERMINALS: THT pins Overload resistance: 40N, 1 time Sealing: IP60 or IP67 NOTE: Other configurations of haptics and terminals are available upon demand. This product is designed and manufactured for general electronic devices. For systems where reliability and safety are required, please contact your sales representative to secure product integration and function to secure usage. Mechanical Electrical Silver Gold MAXIMUM POWER: 1 VA 0.2 VA MAXIMUM VOLTAGE: 32 VDC 32 VDC MINIMUM VOLTAGE: 20 mV 20 mV MAXIMUM CURRENT: 50 mA 10 mA MINIMUM CURRENT: 1 mA 1 mA DIELECTRIC STRENGTH (50 Hz, 1 min.): > 250 Vrms CONTACT RESISTANCE: < 100 m Ω INSULATION RESISTANCE (100 V, initial stage): > 109 Ω BOUNCE TIME: < 1 ms Environmental Silver Gold OPERATING TEMPERATURE: -40˚C to 85˚C -40˚C to 125˚C STORAGE TEMPERATURE: -55˚C to 85˚C -40˚C to 125˚C Process Wave soldering compatible with lead free soldering profile. Packaging In boxes of 250 pieces (V type) or 500 pieces (M type). In tubes of 65 pieces (A type). * valid for KSFI only ** valid for KSFI MK1 series only *NOTE: Products must be checked according to customers soldering parameters especially in terms of flux resistance. R Ground Terminal

0 Without

1 With

B–3 Dimensions are shown: mm (inches) Specifications and dimensions subject to change www.ck-components.com Tactile Switches B 24 aug 16 KSF & KSFI Series Soft Actuated Tact Switch B B X Y 1 0,15 1 0,15 0,44 7,3 7,4 4,2 0,3 (9) (7,65) ( 5,08 ) ( 0,53 ) 1,04 2,6 A 3,5 R0,2 4 maxi 7,62 5,080,1 XY 0,9+0,1 0,2 A 2 0,1 L mini : 1,5 Recommended PCB (component side) Recommended shape for actuator COUPE B-B VerticaleActuation direction Smooth surface KSF X Y (0,4) (2,57) 3,3 0,3 3,2 0,2 (8,03) (0,53) (9,02) (0,8)(5,08) 3,67 0,2 6,24 0,3 7,66 0,3 4,87 0,2 2,6 0,1 7,7 0,15 2,54 2 8,82 7,62 0,1 XY 2 holes 1,2+0,1 0,1 XY 2 holes Forbidden area free of electrical run 0,9+0,1 05,08 6,5 1,2 1.6 mm thick PCB Recommended PCB (component side) KSFI 0V