KMR421LFS

KMR 4 Series Microminiature SMT Top Actuated Features/Benefits • Long Life version • 4 actuation forces • Optional ground pin • Ultra low current capabilities • Excellent tactile feel Typical Applications • Automotive • Cellular phones • Industrial electronics • Medical equipment B Specification FUNCTION: momentary action CONTACT ARRANGEMENT: 1 make contact = SPST, N.O. TERMINALS: Gullwing type for SMT Electrical MAXIMUM POWER: MAXIMUM VOLTAGE: MINIMUM VOLTAGE: MAXIMUM CURRENT: MINIMUM CURRENT: DIELECTRIC STRENGTH: CONTACT RESISTANCE: INSULATION RESISTANCE: BOUNCE TIME: Tactile Switches Silver 1 VA 32 VDC 20 mVDC 50 mA 1 mA* ≥ 250 Vrms ≤ 100 mΩ ≥ 1GΩ ≤ 3 ms Gold 0.2 VA 32 VDC 20 mVDC 10 mA 1 mA* Mechanical Type G and NG (except gold version G only) See description below KMR421 LFS KMR431 LFS KMR431 ULC LFS KMR432 LFS KMR432 ULC LFS KMR441 LFS KMR441 ULC LFS KMR442 LFS KMR442 ULC LFS Operating force N (grs) 2.0 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0 (200) (300) (300) (300) (300) (400) (400) (400) (400) ± ± ± ± ± ± ± ± ± 0.50 0.75 0.75 0.75 0.75 1.00 1.00 1.00 1.00 Operating life (cycles) 200 150 150 300 300 100 100 200 200 000 000 000 000 000 000 000 000 000 Travel (mm) *For ULC version minimum current is 1µA at 1.8 VDC 0.25 0.30 0.30 0.30 0.30 0.35 0.35 0.35 0.35 mm mm mm mm mm mm mm mm mm ± ± ± ± ± ± ± ± ± 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Environmental OPERATING TEMPERATURE: STORAGE TEMPERATURE: Silver -40˚C to 85˚C -55˚C to 85˚C Gold -40˚C to 125˚C -55˚C to 125˚C Process Infrared Reflow Soldering in accordance with IEC61760-1 Packaging In reels of 6,000 pieces for KMR 4 External diameter 330 mm ± 2 mm NOTE: Specifications listed above are for switches with standard options. For information on specific and custom switches, consult Customer Service Center. TACTILE FEELING: for KMR 4 series: ≥ 25% Part Number Description For any part number different from those listed above, please consult your local representative. K M R 4 3 1 N G U L C L F S Total height 4 2,5 mm LFS Lead free compatible, silver plated LFG Lead free compatible, gold plated Actuation Force 2 2 N (200 grams) 3 3 N (300 grams) 4 4 N (400 grams) Low Current capability Void Under standard specification ULC Low current Grounding option G Ground pin NG No Ground pin Contact Material 1 Silver 2 Silver long life 3 Gold Dimensions are shown: Inch (mm) Specifications and dimensions subject to change B–11 www.ck-components.com KMR 4 Series Microminiature Tact Switch for SMT KMR 4 Series - 2.5 mm height B PCB layout shown with ground pin option 3,2 1,7 5 1,4 ± 0,15 B Tactile Switches B 2,5 ± 0,2 0,55 3 1 0,6 5 SECTION A-A 4,6 4,2 2,45 2,8 ± 0,2 0,6 1,61 0,6 2,11 2,2 TAPE & REEL DE-REELING DIRECTION OUT OF THE TAPE 60 max 2,75 ± 0,1 4 ± 0,1 2 ± 0,05 ø 1,5 ± 0,1 12 -0,1 5,5 ± 0,05 +0,3 1,75 B 1 4 2 2,6 A A 60 max 0,292 ± 0,02 GROUND TERMINAL 3,03 ± 0,1 B Dimensions are shown: Inch (mm) Specifications and dimensions subject to change B–12 www.ck-components.com 4,95 ± 0,1