SMT Gasket (SMTG Type)

With consumer electronics products adds more functionality and the design of the smaller and thinner form factor, PCB Layout complexity is increasing, it may be more interference with the function of electronic products. Electronic engineers design space becomes more challenging. These challenges require additional ground to help eliminate noise, ESD, EMI, RFI and other related phenomena. The Newest SMD grounding pad (SMT Gasket) (SMTG Series) of Metal Alloy film cover silicone rubber. This product also provides excellent electrical characteristics and compression rate. Also, there are many different sizes for customers to choose.
Product Features
  • SMTG can be used in Surface Mountable Technology (SMT), can be grounding and contact the other conductive case.
  • High compression ratio and excellent conductivity.
  • Provide a lot of applicate sizes and rework possibilities are available.
  • Excellent adhesion properties on printed circuit boards.
  • The standardized design can be saved design circles and mold costs.
  • The product has high reliability and there is no risk of breakage and compression misjudgment.
  • EIA standardized tape and reel package for high productivity.
Physical Property Unit Value
Electric Resistance Before SMT ( Ω ) ≦ 0.1
After SMT ( Ω ) ≦ 0.1
Adhesion Strength (gf/cm) Push Pull Gauge Speed : 0.5mm/sec Length side.:150gf(Min.)
Width side: 200gf(Min.)
Compression Deflection Rate (%) 20% Compression 85℃ / 85%RH, 200Hr 95(Min.)
30% Compression, 48hr 90(Min.)
Heat Resistance(℃) Internal Test Method 280
Service Temperature(℃) Internal Test Method -40~150
Flame Retardant - UL94-V1
Solderability test ( Pulling Force ≧ 500gf )
Soldering the SMT Gasket to the printed circuit board and passed Re-flow after. The board is fixed at a speed of 50mm per minute and generates tension from the upper side. When the SMT Gasket is completely separated from the printed circuit board, the pull value is calculated.
PART NO Compression (%) Pressure (gf) Height (mm) Resistance (Ω) Rebound (mm)
SMTG-4-3-3
Test Method
(JIS-K-7194)
10% 70 2.70 0.020 3.00
15% 110 2.55 0.015 3.00
20% 180 2.40 0.013 3.00
25% 250 2.25 0.012 3.00
30% 340 2.10 0.011 3.00
35% 420 1.95 0.010 3.00
40% 550 1.80 0.009 3.00
45% 790 1.65 0.009 3.00
50% 1100 1.50 0.009 3.00
*The above data is the actually measured value, not absolute value.
Part Number Structure
SMTG 4 - 3 - 3 - 3  
〔1〕   〔2〕   〔3〕   〔4〕   〔5〕  
〔1〕 Part Name
〔2〕 Width (mm)
〔3〕 Height (mm)
〔4〕 Length (mm)
〔5〕 N/A: Without Hole;
H: 0ne Hole
HH: 2 Holes
HA: Au Plated on Surface
HC: Sn Plated on the bottom
SMTG-4-3-3 Soldering on PCB
NO.1 3.417 kgf
NO.2 2.928 kgf
NO.3 3.222 kgf
NO.4 2.986 kgf
NO.5 3.182 kgf
Average 3.147 kgf
*The above data is actual test value, not absolute value.
Environmental Testing
  • RoHS Compliant (RoHS 2): SGS TEST REPORT
  • High temperature accelerated life cycle test: TEST REPORT BY SGS / ETC Lab.
  • EMI shielding effective Test result: 65dB (AVG.) E5071 Network Analyzer From 30MHz to 6GHz ( ASTM D4935-89 )
Part Number Structure
  Part Number Width(mm) Height(mm) Length(mm) EA/Reel
1 SMTG-2-0.7-1 2 0.7 1 4,000
2 SMTG-2.5-0.7-1 2 0.7 1 4,000
3 SMTG-2-0.8-1HC 2 0.8 1 10,000
4 SMTG-2-1-1 2 1 1 10,000
5 SMTG-2-1-1HA 2 1 1 10,000
6 SMTG-2-1-1.25HA 2 1 1.25 10,000
7 SMTG-2-1.1-1H 2 1.1 1 3,000
8 SMTG-2-1.1-1HC 2 1.1 1 10,000
9 SMTG-2-1.2-1.25HA 2 1.2 1.25 6,000
10 SMTG-2.5-1.2-1H 2.5 1.2 1 3,000
11 SMTG-2-1.3-1HC 2 1.3 1 10,000
12 SMTG-2-1.4-1HC 2 1.4 1 10,000
13 SMTG-2-1.5-1HA 2 1.5 1 8,000
14 SMTG-2.5-1.5-1H 2.5 1.5 1 2,500
15 SMTG-3-1.5-2H 3 1.5 2 6,000
16 SMTG-3-1.5-2HA 3 1.5 2 8,000
17 SMTG-3-1.5-4H 3 1.5 4 6,000
18 SMTG-4-1.5-3H 4 1.5 3 6,000
19 SMTG-2-1.6-1.5HC 2 1.6 1.5 8,000
20 SMTG-2-1.8-1.5HC 2 1.8 1.5 6,000
21 SMTG-2-2-1.5H 2 2 1.5 2,000
22 SMTG-2-2-1.5HC 2 2 1.5 6,000
23 SMTG-2.5-2-1H 2.5 2 1 2,000
24 SMTG-3-2-2H 3 2 2 2,000
25 SMTG-3-2-2HA 3 2 2 6,000
26 SMTG-3-2-4H 3 2 4 3,500
27 SMTG-2-2.5-1.8HC 2 2.5 1.8 6,000
28 SMTG-3-2.5-2H 3 2.5 2 4,000
29 SMTG-3-2.5-3H 3 2.5 3 4,000
30 SMTG-3-3-2H 3 3 2 3,000
31 SMTG-3-3-4H 3 3 4 3,000
32 SMTG-4-3-3H 4 3 3 3,000
33 SMTG-4-3-6H 4 3 6 3,000
34 SMTG-4-3.5-3H 4 3.5 3 3,000
35 SMTG-4-4.5-3H 4 4.5 3 2,000
36 SMTG-4-4-6H 4 4 6 2,500
37 SMTG-4-4.5-3H 4 4.5 3 2,000
38 SMTG-4.5-4.5-6H 4.5 4.5 6 2,500
39 SMTG-4.5-5-2.5H 4.5 5 2.5 1,500
40 SMTG-4.5-5-6H 4.5 5 6 1,000
41 SMTG-5-5-3H 5 5 3 2,000
42 SMTG-5-5-6H 5 5 6 1,500
43 SMTG-4.5-6-2.5H 4.5 6 2.5 1,500
44 SMTG-4.5-6-6H 4.5 6 6 1,000
45 SMTG-5-6.5-3H 5 6.5 3 1,500
46 SMTG-5-7.5-3H 5 7.5 3 1,500
47 SMTG-5-7.5-6H 5 7.5 6 900
48 SMTG-5-9-6H 5 9 6 800
49 SMTG-5-10-6H 5 10 6 800
50 SMTG-6-12-5H 6 12 5 500
51 SMTG-10-12-8.4H 10 12 8.4 500
52 SMTG-12-17-11H 12 17 11 150
*If there are not any sizes for your needed. Please feel free to contact with our sales engineers, we can provide the sample .

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SMT Gasket (SMTG Type)
With consumer electronics products adds more functionality and the design of the smaller and thinner form factor, PCB La ...
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