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Accessory
Products
THERMAL COMPOUNDS, ADHESIVES AND INTERFACE MATERIALS
The 120 Series Silicone Oil-Based Thermal Joint Compound fills the minute air gap between mating surfaces with
120 SERIES
a grease-like material containing zinc oxide in a silicone oil carrier. It possesses an excellent thermal resistance of
only 0.05°C/W for a 0.001 in. film with an area of one square inch. There is no measurable increase in case tem-
perature of a mounted semiconductor on a heat sink after the 6-month stabilization period (Time versus Thermal
Resistivity graph below).
TYPICAL VALUES FOR THERMAL RESISTANCE,
120 SERIES - THERMAL JOINT COMPOUND
CASE TO SINK (Ø ) WHEN THERMAL JOINT
cs
Characteristic
Volume Resistivity
Description
5 X 1014 ohm-cm
225 volts/mil
COMPOUNDS ARE USED
Typical
Mounting Torque Thermal
in inch • pounds Resistance
Dielectric Strength
Case Style Characteristics
T0-3
TO-66
(N•M)
8 (0.9)
9 (0.9)
(°C/W)
0.09
0.14
Specific Gravity
Thermal Conductivity @ 36°C
2.1 min.
0.735 W/(m)(K)
5.1(Btu) (in.)/(hr)(ft2)(°F)
TO-220
8 (0.9)
15 (1.7)
0.50
0.16
Thermal Resistivity (P)
Bleed, % after 24 hrs @ 200°C
Evaporation, % after 24 hrs @ 200°C
Color
56 (°C)(in.)/watt
0.5
0.19 (4.8) stud x 0.44 (11.2) hex
0.25 (6.4) stud x 0.69 (17.5) hex
0.38 (9.7) stud x 1.06 (26.9) hex
30 (3.39)
75 (8.47)
0.10
0.07
0.5
opaque white
5 years
0.50 (12.7) stud x 1.06 (26.9) hex
0.75 (19.1) stud x 1.25 (31.8) hex
125 (14.12)
600 (67.79)
0.07
0.052
Shelf life
Operating Temperature Range (°C)
-40/+200
120 SERIES - ORDER GUIDE
Series -
P/N
Container Size
120-SA
120-2
120-5
120-8
120-80
120-320
4 gram plastic pak
2 oz (0.06 kg) jar
5 oz (0.14 kg) tube
8 oz (0.23 kg) jar
5 lb (2.27 kg) can
20 lb (9.08 kg) can
HIGH PERFORMANCE THERMAL COMPOUND
122 Series Thermal Joint Compound is a stable, silicone based, thixotropic paste developed to provide premium
performance at an affordable price. It is formulated to significantly reduce contact thermal resistance where
power densities are concentrated in devices such as flip chip, reduced die size, and ‘overclock’ microprocessors.
When applied as a thin film between a Wakefield heat sink and device it possesses superior thermal conductivity
compared to traditional ‘grease’. It is compatible with automated or manual dispensing methods and is fully RoHS
compliant.
122 SERIES
122 SERIES - ORDER GUIDE
122 SERIES THERMAL JOINT COMPOUND
Series -
Container Size
Typical Characteristics
Description
P/N
122-10CC
122-2
10cc syringe
2 oz (0.06 kg) jar
30cc syringe
Appearance
Smooth Gray paste
Thermal Conductivity
2.5 W / m °K,
17.3 (Btu) (in.)/(hr) (ft2) (0F)
122-30CC
Thermal Resistance
Bleed
0.02 °C in 2 / W
0.015 wt%, 24 hrs at 200°C
0.150 wt%, 24 hrs at 200°C
1.4 x 1010 ohm-cm
225 volts/mil
Evaporation
Volume Resistivity
Dielectric Strength
Specific Gravity
Operating Range
Shelf Life
2.23 (gm/cc) at 25°C
-40°C to 205°C
5 years
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