251G Aavid Thermalloy, 251G Datasheet - Page 2

• Manufacturer Part Number: 251G
• Description: THERMAL GREASE
• Manufacturer: Aavid Thermalloy
• Series: Thermalcotetrade;r
• Type: Silicon Compoundr

Specifications of 251G

• Size / Dimension: 1 lb Can
• Product: Thermal Management
• Size: 1 lb
• Container: Can
• Chemical Component: Polydimethylsiloxane/Zinc Oxide
• Dispensing Method: Aerosol
• Primary Type: Grease
• Temperature, Rating: -40 to +204 °C
• Weight: 1 lbs.
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 35270

Thermalcote
Thermalcote™ is a superior thermal joint compound of thermally-loaded
silicone-based grease for use with all heat sinks. It improves the transfer of
thermal energy across the metal-to-metal interfaces between the transistor
or rectifier case and the heat sink.
Thermalcote conducts heat approximately 15 times better than air and
more than 4 times better than unloaded silicone grease. It is non-toxic,
extremely stable, and neither cakes nor runs from -40° to 204°C (-40°F to
399°F).
Thermalcote Resistance Calculator
Formula
(1) It is recommended that the containers be turned over every 6 months
to minimize settling for ease of mixing.
Ordering Information
that will contact the heat sink:
Color
Operating
Temperature Range
Thermal
Conductivity
Dialectic
strength 1.27 mm gap(0.050" gap)
Cleaning
solvent
Specific gravity
Evaporation, 24 hours@200°C (392°F), wt% 1
Shelf Life
Part No. RoHS
249
250G
251G
Enter the area of the device
Enter the grease thickness:
Interface Resistance =
PCN
Net Weight
28 grams (1 oz) tube
57 grams (2 oz) tube
.45Kg. (1 lb) can
mm
mm
2
Opaque White
-40°C to 204°C (-40°F to 399°F).
0.765Wm
11.8 x 10
Mineral Spirits
or Turpentine
1.6
Indefinite
One Year (opened)
1
-1
3
volts/mm (300volts/mil)
(unopened)
°C
-1
(0.442 Btu/hr ft °F