KMT2 Series Nano-Miniature SMT Top Actuated
Features • Smallest footprint • High number of cycles within the
smallest packaging
• Smallest thickness with integrated
actuator
Typical Applications • Mobile Phones • Hearing Aids • MP3 accessories • Bluetooth Headset
• Ground pin option • Halogen free
B Tactile Switches
Environmental
Silver OPERATING TEMPERATURE: STORAGE TEMPERATURE: -40˚C to 85˚C -55˚C (10 days) +85˚C (4 days)
Specification
FUNCTION: momentary action CONTACT ARRANGEMENT: 1 make contact = SPST, N.O. TERMINALS: Gullwing type for SMT
Mechanical
Operating force Type G and NG Newtons (grams) KMT 211 HF LFS 1.0 (100) ± 0.25 KMT 221 HF LFS 1.6 (160) ± 0.40 Operating Life 150,000 150,000 Silver 0.5 VA 32 VDC 20mV 50 mA 1 mA ≥ 250 Vrms (1mn) ≤ 300 mΩ ≥ 50 MΩ ≤ 6 ms Tactile Feeling ≥ 10% ≥ 30% Travel mm 0.13 ± 0.06 0.13 ± 0.06
Process
SOLDERING: This component is suited to the following methods: – Infrared Reflow Soldering in accordance with IEC61760-1
Electrical
MAXIMUM POWER: MAXIMUM VOLTAGE: MINIMUM VOLTAGE: MAXIMUM CURRENT DC: MINIMUM CURRENT DC: DIELECTRIC STRENGTH: CONTACT RESISTANCE: INSULATION RESISTANCE: BOUNCE TIME:
Packaging
In reels of 4,000 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.
K Total Height 2 0.65 mm
M
T
2
HF
L
F
Grounding Actuation Force 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
Type HF Halogen Free
LFS RoHS, silver plated LFG RoHS, gold plated - please contact Customer Service
Dimensions are shown: Inch (mm) Specifications and dimensions subject to change
B–5
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KMT2 Series Nano-Miniature SMT Top Actuated
KMT Series – No Ground Pin
RECOMMENDED LAYOUT ELECTRICAL DIAGRAM
1,4 2,4
3,4 ± 0,2
0,46 0,65 ± 0,1
B Tactile Switches
0,06
ø 1,2
2,3 3,6
3
KMT Series – With Ground
ELECTRICAL DIAGRAM RECOMMENDED LAYOUT
1,4 2,4
2,6
(0,05)
3,4 ± 0,2
0,46 0,65 ± 0,1
ø1,2
2,3 3,6
0,2
0,06
3
0,4
2,6
0,4
0,02 ±0,05 (0,05)
TAPE & REEL
0,25 ± 0,05 0,95 ± 0,1
DE-REELING DIRECTION OUT OF THE TAPE SECTION A-A Draft 5˚ max
2 ± 0,05
4 ± 0,05 B
+0,1 ø1,5 0
1,3 ± 0,1
ø1± 0,1
+0,3 12 -0,1
5,5 ± 0,05
1,75 ± 0,1
0,6 1,2 2,6
4 ± 0,1
1,2 2,6
3,6 ± 0,1
A A
Draft 5˚ max
B
1,7 ± 0,1
2,8 ± 0,1
Dimensions are shown: Inch (mm) Specifications and dimensions subject to change
B–6
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4 ± 0,1
R0,5