Tflex
TM
HD400 Series
Thermal Gap Filler
Product Description
Laird Tflex HD400 is a 4.0 W/mK gap filling material in our high deflection line of products. Tflex
HD400 is an excellent choice when wide manufacturing tolerances occur. These variable gaps can be
filled with Tflex HD400 while generating minimal board and component stress. Laird’s unique
manufacturing capabilities, filler and resin knowledge result in this advanced product designed with
customer applications in mind.
Tflex HD400 is provided in thickness from 0.5mm (.020”) up to 5mm (0.200”) in 0.25mm (.020”)
increments as standard. In addition, Laird can provide Tflex HD400 in multiple converted formats
through approved converters and distribution networks.
FEATURES AND BENEFITS
•
•
•
•
•
•
4.0 W/mK thermal conductivity
Low pressure versus deflection
Excellent surface wetting for low contact resistance
Minimizes board and component stress
Large tolerance applications
RoHS and REACH compliant
SPECIFICATIONS
TYPICAL PROPERTIES
Construction & Composition
Color
Thickness Range
Thermal Conductivity (W/mK)
Density (g/cc)
Hardness (Shore 00)
Outgassing TML (weight %)
Outgassing CVCM (weight %)
Temperature Range
Rth@ 40 mils, 10 psi
Dielectric Constant @ 1 MHz
UL Flammability Rating
Volume Resistivity
VALUE
Ceramic filled silicone sheet
Blue
0.5 mm (0.020”) - 5.0mm (0.20”)
4.0
3.0
44
0.22
0.04
-40°C to 200°C
0.36°C–in2/W
10.7
V-0
2.8 x 10
14
TEST METHOD
N/A
Visual
N/A
ASTM D5470
Helium Pycnometer
ASTM D2240
ASTM E595
ASTM E595
Laird Test Method
ASTM D5470 (Modified)
ASTM D150
UL 94
ASTM D257
Americas: +1.866.928.8181
Europe: +49.(0).8031.2460.0
Asia: +86.755.2714.1166
www.lairdtech.com
Tflex
TM
HD400 Series
Thermal Gap Filler
Tflex HD400 Deflection vs Pressure
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
5 psi
10 psi 20 psi 30 psi 40 psi 50 psi 60 psi 70 psi 80 psi 90 psi 100 psi
40 mil
60 mil
140 mil
180 mil
200 mil
Tflex HD400 Thermal Resistance vs. Pressure
0.70 C-in2/W
0.60 C-in2/W
0.50 C-in2/W
0.40 C-in2/W
0.30 C-in2/W
0.20 C-in2/W
0.10 C-in2/W
0.00 C-in2/W
0 psi
20 psi
40 mil
40 psi
60 mil
60 psi
80 mil
80 psi
100 mil
100 psi
AVAILABILITY
STANDARD THICKNESSES
•
0.5 mm (0.020”) to 5.0mm (0.200”) thick material available in 0.25mm (0.010”) increments
•
Available in standard sheet sizes of 18” x 18” and 9” x 9” or custom die cut parts
OPTIONS
•
DC1 – eliminate tack from one side
PART NUMBER SYSTEM
Tflex™ indicates Laird elastomeric thermal gap filler product line. HD4xxx indicates Tflex HD400 product line with thickness in mils (0.001”)
EXAMPLES:
•
Tflex™ HD440 = 0.040” thick Tflex™ HD400 material
•
Tflex™ HD4100DC1 = 0.10” thick Tflex™ HD400 material with DC1 option
A17434-00 Tflex HD400 DS 070717
Any information furnished by Laird Technologies, Inc. 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 Technologies materials rests with the end
user. Laird Technologies makes no warranties as to the fitness, merchantability, suitability or non- infringement of any Laird Technologies materials or products for any specific or general uses. Laird Technologies shall not be liable for incidental or
consequential damages of any kind. All Laird Technologies 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 2013 Laird Technologies,
Inc. All Rights Reserved. Laird, Laird Technologies, the Laird Technologies 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 Technologies or any third party intellectual property rights.
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