Tactile Switches KMT2 Series Nano-Miniature SMT Top Actuated Features Typical Applications • Mobile Phones • Smallest footprint • Hearing Aids • High number of cycles within the • MP3 accessories smallest packaging • Bluetooth Headset • Smallest thickness with integrated actuator • Ground pin option • Halogen free Specification Environmental FUNCTION: momentary action Silver CONTACT ARRANGEMENT: 1 make contact = SPST, N.O. OPERATING TEMPERATURE: -40˚C to 85˚C TERMINALS: Gullwing type for SMT STORAGE TEMPERATURE: -55˚C (10 days) +85˚C (4 days) Mechanical Operating force Operating Tactile Process Type G and NG Newtons (grams) Life Feeling Travel mm SOLDERING: This component is suited to the following methods: KMT 211 HF LFS 1.0 (100) ± 0.25 150,000 ≥ 10% 0.15 ± 0.1 – Lead free reflow soldering process in accordance with IEC KMT 221 HF LFS 1.6 (160) ± 0.40 150,000 ≥ 30% 0.15 ± 0.1 61760-1. Electrical Silver Packaging In reels of 4,000 pieces. MAXIMUM POWER: 0.5 VA Dimensions of reels according to EIA 481B MAXIMUM VOLTAGE: 32 VDC External diameter 180 mm MINIMUM VOLTAGE: 20 mV MAXIMUM CURRENT DC: 50 mA MINIMUM CURRENT DC: 1 mA DIELECTRIC STRENGTH: ≥ 250 Vrms (1mn) NOTE: Specifications listed above are for switches with standard options. CONTACT RESISTANCE: ≤ 150 mΩ For information on specific and custom switches, consult Customer Service Center. INSULATION RESISTANCE: ≥ 50 MΩ BOUNCE TIME: ≤ 6 ms Part Number Description For any part number different from those listed above, please consult your local representative. HF L F K M T 2 Total Height Type 2 0.65 mm LFS RoHS, silver plated HF Halogen Free Grounding Actuation Force LFG RoHS, gold plated - please contact Customer Service Option 1 1.0 N (100 grams) Contact G Ground Pin 2 1.6 N (160 grams) Material NG No Ground Pin 1 Silver 3 Gold - please contact Customer Service Dimensions are shown: mm Specifications and dimensions subject to change www.ckswitches.com B–7 R0,5 KMT2 Series Nano-Miniature SMT Top Actuated KMT Series – No Ground Pin RECOMMENDED LAYOUT ELECTRICAL DIAGRAM B 3,4 ± 0,2 2,3 ø 1,2 3,6 0,06 3 KMT Series – With Ground Pin RECOMMENDED LAYOUT ELECTRICAL DIAGRAM 3,4± 0,2 ø1,2 2,3 0,2 3,6 0,06 3 0,4 TAPE & REEL DE-REELING DIRECTION SECTION A-A Draft 5˚ max OUT OF THE TAPE +0,1 1,5 ø 2±0,05 4±0,05 0 1,3 ±0,1 ø1±0,1 4±0,1 B A A B Draft 5˚ max 1,7 ±0,1 2,8 ±0,1 Dimensions are shown: mm Specifications and dimensions subject to change www.ckswitches.com B–8 Tactile Switches +0,3 12 -0,1 0,95 ±0,1 5,5 ±0,05 1,75 ±0,1 0,25 ±0,05 0,4 0,02±0,05 0,46 1,4 (0,05) 2,6 0,46 1,4 2,6 0,65 ± 0,1 2,4 (0,05) 0,65 ± 0,1 2,4 0,6 1,2 2,6 1,2 2,6 3,6 ±0,1 4±0,1