126-4 Wakefield Thermal Solutions, 126-4 Datasheet - Page 4

• Manufacturer Part Number: 126-4
• Description: THERMAL COMPOUND SYNTHETIC 4 OZ
• Manufacturer: Wakefield Thermal Solutions
• Series: 126r
• Type: Non-Silicon Compoundr

Specifications of 126-4

• Size / Dimension: 4 oz Tube
• Dispensing Method: Tube
• Volume: 4fl.oz. (US)
• Weight: 4oz
• Trade Name, Chemical: 126 Series
• Color: White
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 345-1011

WTS001_p50-68
THERMAL COMPOUNDS, ADHESIVES AND INTERFACE MATERIALS
* Since the hardener/resin reaction is exothermic, it is important that batch size be matched to hardener speed. Working times given are for approximate batch sizes: A—200 gms,
† After initial cure, material may be handled, removed from fixture, etc., but has not yet achieved full properties and should be room temperature aged or post-cured as shown to
‡ After initial cure, material may be brought to full physical and electrical properties during post-cure or may be room temperature aged for charted length of time to achieve same
The information contained herein is based on data believed to be reliable but we do not assume responsibility for accuracy. All such information is used at the customer's own risk,
conditions of use being beyond our control.
B—200 gms. Larger batch sizes will greatly reduce working time.
achieve full physical and electrical properties.
full properties.
DeltaBond™ 155
DeltaBond™ 156
6/14/07
10:46 AM
Page 67
DeItaBond™ 155
thixotropic paste, it offers high heat transfer, low shrinkage, and a coefficient of thermal expansion comparable to that of
copper and aluminum. This adhesive is principally used to form thermally conductive joints in fabricated heat sinks and
between heat sinks and power devices. When used to bond semiconductors to heat sinks, it also serves as an electrical
insulator. Its strong bond to a wide variety of substrates resists severe temperature cycling.
available in kit size. Simply squeeze out equal lengths and mix to uniform color. Shelf life: 1 year.
DeltaBond™ 156
components where heat must be effectively transmitted. Recommended for electromechanical assemblies to bond com-
ponents and dissipate heat, it replaces mechanical fasteners and compressible pads, silicone grease, and epoxies; elimi-
nates air entrapment, and other variables related to epoxy mixing. This soft paste requires no mixing and flows easily to
allow thin bond lines. Primer activated, cure begins upon assembly. DeltaBond™ Activator fixtures at room temperature
in less than 5 minutes. Full strength is developed in 4 to 12 hours and fillets become dry to the touch in 24 hours. It is
not recommended to use this durable adhesive without the use of DeltaBond™ Activator.
kit size; order 156-K (25 ml Syringe and Activator Kit). Shelf life: 1 year.
Note: The absolute thermal conductivity test was developed specifi cally
for measuring thermal properties of thin film adhesive bonds.
Typical Properties Fully Cured
Thermal conductivity -
W/(m) (°K)
(Btu) (in.)/(hr) (ft
Thermal resistivity - (°C) (in.)watt
Bond shear strength
Heat distortion point - °F
Minimum dielectric strength,
Max operation
Typical Properties Fully Cured
Temperature Range
Tensile Strength, at break
Modulus
Elongation, at break
Outgassing
Coefficient of Thermal Expansion
Tensile Shear
Thermal Conductivity, K
(absolute at 86°F (30°C)
v/mil, 0.125 in. sample
temp - °C
1 in. overlap - psi
etched aluminum to
etched aluminum
DeltaBond™ 156
Number
Model
Characteristics
Characteristics
Test
2
) (°F)
DELTABOND™155
Intermittent
Continuous
is an epoxy adhesive formulated for use within the semiconductor industry. An easy to mix spread
Thermally Conductive Adhesive is a modified acrylic adhesive designed for permanent mounting on
125°F
212°F
DELTABOND™156
77°F
Part No.
156-K
Results
-65 to 300°F
(-54 to 149°C)
300°F to (177°C)
Intermittent
2360 psi
233,000 psi
7.75%
2.5% TLM
0.05% CVCM
7.1 x 10
2500psi
3.47 Btu x in./hr ft
(0.50 W/m °C)
Resin Kit Hardener Syringe - 0.85 fl oz - 25 ml - 2 oz
net/0.44 oz fl contents bottle -12ml
DeltaBond™155
Hardener Type
0.836
2,600
-4
130
400
100
5.8
47
—
—
65
Description
(cm/cm°C)
Resin
2
°F
Ordering Guide - Resin and Hardener
Container
D1002
ASTM
D638
D638
D638
E595
DELTABOND™156
Parts of hardener per 100 parts of resin
*Working Time - at 77°F
†Initial cure time
‡Post-cure time at a temp in °F
‡Alternate room temp. aging time at 77°F
Working consistency (77°F)
Working viscosity (77°F) cps
DeltaBond™ 155
Number
Model
Note: DeltaBond™ Thermally Conductive Adhesive-High Strength
contains a metallic filler which, in certain applications, may have an
effect on electrical properties. Therefore, test each particular appli-
cation to ensure that electrical properties are as required.
Dielectric Strength
Dielectric Constant, 77°F (25°C)
Dissipaton Factor, 77°F (25°C)
Volume Resistivity
Surface Resistivity
Part No.
Mixing Proportions and Working Properties
77°F
150°F
250°F
155
Test
1MM Hz
1MM Hz
1000 Hz
1000 Hz
Ordering Guide - Resin and Hardener
100 Hz
100 Hz
Included in kit hardener with brush applicator -
4.2 oz total wt/kt
Kit (3 oz resin, 3 oz hardener)
Typical Electrical Properties
DELTABOND™155
DELTABOND™155
DELTABOND™156
Resin
Container
DeltaBond™ 156
Part Number
3
5.2x10
8.6 x 10
Hardener
DeItaBond™ 155
220 volts/mil
Results
14.92
14.26
12.34
11
0.05
0.03
0.06
(ohms-cm)
13
(ohms)
Included in P/N 155
Accessory
by volume 100
Products
4 hrs @ 200°F
is available in
Hardener
Part Number
D149
D150
D150
D257
D257
ASTM
90 min
45 min
20 min
4 days
is only
8 hrs
paste
paste
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