KMT2 Series Nano-Miniature SMT Top Actuated Features Typical Applications • Smallest footprint • Mobile Phones • High number of cycles within the • Hearing Aids smallest packaging • MP3 accessories • Smallest thickness with integrated • Bluetooth Headset actuator • Ground pin option • Halogen free T a c Specification Environmental t i FUNCTION: momentary action Silver le CONTACT ARRANGEMENT: 1 make contact = SPST, N.O. OPERATING TEMPERATURE: -40˚C to 85˚C S TERMINALS: Gullwing type for SMT STORAGE TEMPERATURE: -55˚C (10 days) w Mechanical +85˚C (4 days) itc h Operating force Operating Tactile Process e Type G and NG Newtons (grams) Life Feeling Travel mm s 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 MAXIMUM POWER: 0.5 VA In reels of 4,000 pieces. MAXIMUM VOLTAGE: 32 VDC Dimensions of reels according to EIA 481B MINIMUM VOLTAGE: 20 mV External diameter 180 mm MAXIMUM CURRENT DC: 50 mA MINIMUM CURRENT DC: 1 mA DIELECTRIC STRENGTH: ≥ 250 Vrms (1mn) CONTACT RESISTANCE: ≤ 150 mΩ NOTE: Specifications listed above are for switches with standard options. 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. K M T 2 HF L F Total Height 2 0.65 mm Type LFS RoHS, silver plated Actuation Force Grounding HF Halogen Free LFG RoHS, gold plated - please contact Customer Service 1 1.0 N (100 grams) Option 2 1.6 N (160 grams) Contact G Ground Pin 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

KMT2 Series Nano-Miniature SMT Top Actuated KMT Series – No Ground Pin RECOMMENDED LAYOUT ELECTRICAL DIAGRAM 1,42,4 1,22,6 B s 3,4±0,2 0,460,65 ± 0,1 ø1,2 23,,36 e h c 0,06 3 (0,05) t i w S e 2,6 l i t c a T KMT Series – With Ground Pin RECOMMENDED LAYOUT ELECTRICAL DIAGRAM 1,42,4 0,61,22,6 3,4±0,2 0,460,65 ± 0,1 ø1,2 23,,36 0,2 0,06 3 0,40,02±0,05(0,05) 0,4 2,6 TAPE & REEL ±0,1 ±0,05 DEO-RUETE OLIFN GT HDEIR ETACPTIEON SECTION A-A Draft 5˚ max 0,95 0,25 +0,1 2±0,05 4±0,05 ø1,5 0 1,3±0,1 ø1±0,1 4±0,1 ±0,1 B 1,75 ±0,05 +0,312-0,1 5,5 ±0,1 ±0,1 3,6 4 A A R0,5 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

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: C &K Switches: KMT213GHFLFG KMT213NGHFLFG KMT221NGHFLFS KMT223GHFLFG KMT223NGHFLFG KMT211GHFLFS KMT211NGHFLFS KMT221GHFLFS