Soft SMD Grounding Contacts
Metallized Film-over-Foam
SMD METALLIZED FILM-OVER-FOAM GROUNDING CONTACT
Laird’s SMD (Surface Mount Device) Grounding Contact is a foam cored contact with a metalized
polyimide film outer covering. It is used for circuit grounding of SMT (Surface Mount Technology)
devices. These contacts are designed to be solder reflow compatible, and are suitable for automatic
processing.
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FEATURES
Sn / Cu Plated PI Film outer layer
Polymeric Foam Core
Soft SMD contacts are RoHS compliant
Halogen-free per IEC-61249-2-21 standard
Reflow tunnel compatible to 260° C
Patent Pending
UL94 HB Flammability Rating
MARKETS
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Cabinet applications
LCD and Plasma TV
Medical equipment
Servers
Printers
Automotive
Laptop computers and tablets
Networking equipment
Desktop computers
Telecommunications cabinets
Test Method
Laird Internal
Item
Z-Axis Resistance
Before Reflow
After Reflow
Flammability
Solder Adhesion Strength
(Contact to PCB)
Hardness (Shore A)
Compression Set
Operation Temperature
Restricted Substances
Unit
Ω
Ω
kgf
durometer
%
°C
Value
<0.06
<0.10
PASS
>0.8
<20
<15
-40° to 70°
RoHS Compliant Halogen Free
UL 94 HB*
Laird Internal
ASTM D 2240
ASTM D3574
Test D
* UL file number E170327, UL designation code HB 026
Force/Displacement/Resistance Graph of Laird
Soft SMD Contact (7 mm x 7 mm rectangle shape)
Americas: +1.800.323.3757
LHP.Sales@lairdtech.com
Europe: +46.8.555.722.00
LHP.Sales@lairdtech.com
Asia: +86.10.5933.3682
LHP-ChinaSales@lairdtech.com
www.lairdtech.com
Soft SMD Grounding Contacts
Metallized Film-over-Foam
PRODUCT COMPOSITION
Foam
Sn/Cu Plated PI Film
PRODUCT APPLICATION
SMD Contact
Solder Paste
Pad
Printed Circuit Board
PART NUMBER STRUCTURE
SLG
XXX
XXX
XXX
Length
Ex - 100: 10mm
YY
Package
TR: Tape & Reel
Rectangular Shape
SMD Ground Contacts
Width
Ex - 050: 5mm
Height
Ex - 070: 7mm
Example: “SLG-050-070-100-TR” for rectangular shape, 5mm in width, 7mm in height and 10mm length in Tape & Reel.
SLH
XXX
XXX
XXX
Length
Ex - 100: 10mm
YY
Package
TR: Tape & Reel
HourGlass Shape
SMD Ground Contacts
Width
Ex - 050: 5mm
Height
Ex - 070: 7mm
Example: “SLH-050-070-100-TR” for hourglass shape, 5mm in width, 7mm in height and 10mm length in Tape & Reel.
TYPICAL REFLOW CONDITIONS
Temperature Profile
Temperature
A
B
C
D
Preheating Stage
Heating / Soaking Stage
Reflow Stage
Cooling Stage
Room Temp. -170°C
170-217°C
217-Peak Temp.(~260°C Max)
Peak Temp. - Room Temp.
Condition
Time
125 sec.
100 sec.
50 sec.
>60 sec.
Product is available in tape and reel packaging
Values presented have been determined by standard test methods and are typical
values not to be used for specification purposes.
EMI-DS-FOF-SOFT-SMD
070215
Any information furnished by Laird and its agents is believed to be accurate and reliable. All specifications are subject to change without notice. Responsibility for the use and application of
Laird materials rests with the end user, since Laird and its agents cannot be aware of all potential uses. Laird makes no warranties as to the fitness, merchantability or suitability of any Laird
materials or products for any specific or general uses. Laird, Laird Technologies, Inc or any of its affiliates or agents shall not be liable for incidental or consequential damages of any kind.
All Laird products are sold pursuant to the Laird Technologies’ Terms and Conditions of sale in effect from time to time, a copy of which will be furnished upon request. © Copyright 2015
Laird Technologies, Inc. All Rights Reserved. Laird, Laird Technologies, the Laird Logo, and other marks are trademarks or registered trademarks of Laird Technologies, Inc. or an affiliate
company thereof. Other product or service names may be the property of third parties. Nothing herein provides a license under any Laird or any third party intellectual property rights.
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