Overview
- SMT EMI Gasket (SMT EMI Contact) is a grounding terminal that prevents malfunction due to unwanted electromagnetic waves generated inside electronic devices and attenuates electromagnetic noise.
- Reflow soldering is possible up to 260℃ by using material with excellent heat resistance.
- Packaged with reel tape to enable automatic surface mounting.
- Can be used as a touch switch gasket, a touch sensor gasket, etc.
Features
- Stable shape in the form of a cube, and very soft and elastic by using a sponge core.
- Neither bent nor broken like a finger strip
- No fear of hardening or generating siloxane like silicone-core type
- Soft sponge material does not warp PCB nor deform the device
- Excellent electrical conductivity and low surface resistance
- Excellent resilience, free from bent or broken problem (Hardness adjustable)
- SMT(surface mounting) available and manual soldering compatible
- RoHS Compliant, UL94V-0, Halogen Free
Details
Specification
| Contents |
Unit |
Value |
Remarks |
| Electric Resistance |
Ω |
< 0.1 |
ESQ-612-02 |
| Restoration |
％ |
> 90 |
ESQ-612-26 |
| Compression Rate |
% |
20～25 |
ESQ-612-27 |
| Flame Retardant |
- |
UL94 V0 |
UL File# E221431 |
| Aging Test (After aging) |
％ |
> 90 |
20% Comp., 70℃, 100hr |
| Solder Joint Strength |
kgf |
> 0.5 |
- |
| Reflow Temperature |
℃ |
230～260 |
Peak Time: Max. 10sec |
| Repulsive Force |
kgf |
< 1 |
ESQ-612-27 |
| Shielding Effectiveness |
dB |
70 |
10MHz～1GHz |
| Operating Temperature |
℃ |
-40～85 |
|
| Environmental Regulation |
|
|
N999P033 Compliant, Lead free |
Structure
Gasket Shape
|
Feature |
| Material |
Surface |
Conductive metal coating film |
| Adhesive |
Eco-friendly adhesive |
| Core |
Heat resistant sponge (reflowable to 260℃) |
| Size(mm) |
|
Width |
Height |
Length |
| Max. |
12 |
20 |
~ |
| Min. |
3.5 |
1.0 |
2.5 |
PCB Landing Size
(unit:mm)
| Gasket Size |
PCB Landing |
Metal Mask Thickness |
| W |
L |
PW |
PL |
SW |
SG |
|
| 4 |
3 |
4.5 |
3.2 |
1.5 |
1.5 |
0.15 |
| 5 |
3 |
5.5 |
3.2 |
2 |
1.5 |
0.15 |
| 5 |
4 |
5.5 |
4.2 |
2 |
1.5 |
0.15 |
| 8 |
8 |
8.5 |
8.2 |
3 |
2.5 |
0.15 |
Compared with finger strip gasket
|
SMT Gasket |
Finger Strip |
| Compression Recovery Rate |
> 90％ / High |
85 ~ 90％ / Low |
| Surface Resistance |
< 0.1 / Low |
< 0.1 / Low |
| Contact Area |
Surface |
Point / Line |
| Environmental Regulation |
RoHS Complaint, Halogen Free |
BeCu Banned |
Applications
SMT Gasket is used for EMI shielding and grounding by attaching to LCD display PCB. It’s usually used several pieces on PCB to maximize EMI shielding and grounding effectiveness and its positions on PCB are reflected in PCB circuit design phase.
Provided in reel typed career packages suitable for SMT.
Product Support
Part Number
| Number |
Code |
Example |
| (1) |
Product Code |
SMF (Surface Mount Foam) |
| (2) |
Serial Number |
01 |
| (3) |
Width (W) |
050: 5.0mm |
| (4) |
Height (H) |
030: 3.0mm |
| (5) |
Length (L) |
040: 4.0mm |
| (6) |
Shape |
T Shape |
