Tactile Switches KMT0 Series Nano-Miniature SMT Top Actuated Typical Applications Features • Mobile Phones • 3.0 x 2.06 mm footprint • Hearing Aids • Smallest thickness with integrated actuator • MP3 accessories • Extended life cycles • Bluetooth Headset • IP68 • Automotive keyless entry system • Ultra low current capabilities • Smoke and CO detectors • E-readers B • Home automation remote controls Specification Electrical FUNCTION: momentary action, normally open MAXIMUM POWER: 0.5 VA CONTACT ARRANGEMENT: 1 make contact = SPST, N.O. MAXIMUM VOLTAGE: 32 VDC TERMINALS: J lead type for SMT MINIMUM VOLTAGE: 20 mV MAXIMUM CURRENT DC: 50 mA MINIMUM CURRENT DC: 1 mA Mechanical DIELECTRIC STRENGTH: ≥ 250 Vrms (1mn) TRAVEL (mm): 0.15 ± 0.1 CONTACT RESISTANCE: ≤ 150 mΩ Operating force Tactile Operating INSULATION RESISTANCE: ≥ 50 MΩ Newtons (grams) Feeling Life BOUNCE TIME: ≤ 6 ms KMT011NGJLHS 1.0 (100) ± 25% ≥ 10% 300,000 KMT021NGJLHS 1.6 (160) ± 25% ≥ 30% 300,000 Environmental KMT071NGJLHS 2.3 (230) ± 25% ≥ 30% 300,000 OPERATING TEMPERATURE: -40˚C to 85˚C KMT031NGJLHS 3.4 (340) ± 25% ≥ 30% 300,000 STORAGE TEMPERATURE: -55˚C (10 days) +85˚C (4 days) Operating force Tactile Operating Process Newtons (grams) Feeling Life SOLDERING: This component is suited to the following methods: KMT012NGJLHS 1.0 (100) ± 25% ≥ 10% 1,000,000 – Infrared Reflow Soldering in accordance with IEC61760-1 KMT022NGJLHS 1.6 (160) ± 25% ≥ 30% 600,000 KMT072NGJLHS 2.3 (230) ± 25% ≥ 30% 600,000 Packaging In reels of 5,000 pieces. Dimensions of reels according to EIA 481B External diameter 180 mm NOTE: Specifications listed above are for switches with standard options. For information on specific and custom switches, consult Customer Service Center. Part Number Description For any part number different from those listed above, please consult your local representative. N G J L H S K M T 0 Total Height 0 0.65mm LHS Lead free, RoHS, Halogen free, Silver plated Grounding Option Actuation Force NGJ No Ground Pin, J leads 1 1.0 N (100 grams) Contact 2 1.6 N (160 grams) Material 7 2.3 N (230 grams) 1 Silver 3 3.4 N (340 grams) 2 Silver long life 3 Gold Dimensions are shown: mm Specifications and dimensions subject to change 31 oct 17 www.ckswitches.com B–11 KMT0 Series Nano-Miniature SMT Top Actuated Minimum actuator diameter is 1.0 mm. It is recommended to enlarge this diameter to a full flat surface covering the switch. RECOMMENDED LAYOUT ELECTRICAL DIAGRAM ø 1 mini 1 B 2,6 0,06 3,4±0,1 2,3 3 3,6 TAPE & REEL 1 DE-REELING DIRECTION OUT OF THE TAPE +0,1 1,5 ø 2±0,05 4±0,05 0 ø 1±0,1 B A A B 3,2±0,1 2,8±0,05 Dimensions are shown: mm Specifications and dimensions subject to change www.ckswitches.com B–12 Tactile Switches 0,3 +0,3 12 -0,1 0,75±0,1 5,5±0,05 1,75±0,1 0,25±0,1 1,4 ( 0,05 ) H 2,4 1,2 2,6 1,4 3,6±0,1