SMT Gasket

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 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 < 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-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.


Product Support

Part Number

SMT_Gasket
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
SMT_Gasket