SMT Gasket

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SMT Gasket

  • SMT-EMI-Shielding-Gasket-and-Grounding-Contact-1
  • SMT-EMI-Shielding-Gasket-and-Grounding-Contact-2
  • SMT-EMI-Shielding-Gasket-and-Grounding-Contact-3

Overview

  • SMT Gaskets (SMT EMI Pads) protect circuits from electrical surges generated inside the device and remove electromagnetic noise.
  • Used highly conductive materials to secure circuit protection and to eliminate electromagnetic noise through PCB ground.(Shielding rate 70dB or more possible)
  • Reflow soldering is possible up to 260 ℃ by using material with excellent heat resistance.
  • Packaged with reel tape in bobbin for automatic mounting.
  • Good for touch sensor gasket, touch switch gasket, or grounding pads

Features

  • RoHS Compliant
  • UL94V-0, Halogen Free
  • Low surface resistance
  • Excellent resilience, free from bent or broken problem (Hardness adjustable)
  • SMT available and manual soldering compatible

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



Packaging
SMT-EMI-Gasket-Packaging




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-EMI-Shielding-Gasket-and-Grounding-Contact-Sample-1
  • SMT-EMI-Shielding-Gasket-and-Grounding-Contact-Sample-2
  • SMT-EMI-Shielding-Gasket-and-Grounding-Contact-Sample-3

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.