251G Aavid Thermalloy, 251G Datasheet - Page 93

• 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

Tab ordering code 40
Solderable Mounting Tabs
Notes: Mounting tabs have unique locking features built into their design. Aavid Thermalloy adds
to standard and custom heat sinks. For this reason, the tabs are factory applied, and cannot be sold
separately. Please see page 85 for additional tab options.
Heat sinks ordered with solderable mounting
tabs have tin-plated spring steel tabs perma-
nently locked onto the heat sink to provide
wave solderability. The solderable tabs are
mounted on the heat sink after anodizing,
thus eliminating any special coating or han-
dling. The result is a wave solderable heat
sink with black anodized performance.
ORDERING INFORMATION
Suffix
MT
MT2
MT3
MT5
MT6
www.aavidthermalloy.com
Ordering code
Thermalloy origin part
example 12 digit part
(0.032)
(0.250)
0.81
6.35
53
54
55
56
57
C L
example
Stand-off height
5.21 (0.205)
8.51 (0.335)
5.21 (0.205)
5.21 (0.205)
2.92 (0.115)
574802B0 _ _ 00G
6070B–
(0.495)
AMERICA
12.57
A
EUROPE
Features
Solderable mounting tab
Solderable mounting tab
50 degree beveled corners on stand-off portion reducing board footprint
from 7.87 (0.310) to 4.83 (0.190) width. Only tab with this feature.
Bifurcated tabs in lieu of triangular shape
Bifurcated tabs in lieu of triangular shape
Ordering code
B
(0.245)
6.32
G
C
Italy Tel: [phone] email: [e-mail]
United Kingdom Tel: [phone] email: [e-mail]
USA Tel: [phone] email: [e-mail]
A = Model number
B = Mounting tab suffix
C = RoHS compliant
(0.050)
(0.064)
1.27
1.63
FIGURE A
"A"
(0.125)
"B"
3.18
MT3 ONLY
(0.190)
(0.090)
(0.310)
(0.300)
4.83
7.87
2.28
7.62
HEIGHT OF PART
ADD TO
Tab ordering code 43
"A" REF
Typical Installation
(0.040)
TRIANGULAR
1.02
(0.250)
6.35
TAB
MT3 ONLY
CORNERS
BEVELED
15.88 (0.625)
19.18 (0.755)
15.88 (0.625)
15.88 (0.625)
13.59 (0.535)
ASIA
“A” Dim
(0.080)
(0.250)
2.03
6.35
Singapore Tel: [phone] email: [e-mail]
Taiwan Tel: [phone] email: [e-mail]
FIGURE B
4.83 (0.190)
8.13 (0.320)
4.83 (0.190)
4.83 (0.190)
2.54 (0.100)
"A"
(0.625)
“B” Dim
15.88
(0.125)
3.18
"B"
Figure
SEE DETAIL B
A
A
A
B
B
(0.125)
3.18
(0.310)
(0.300)
7.87
7.62
2.90 ± 0.10 (0.114 ± 0.004)
2.90 ± 0.10 (0.114 ± 0.004)
2.90 ± 0.10 (0.114 ± 0.004)
2.95 ± 0.05 (0.116 ± 0.002)
2.95 ± 0.05 (0.116 ± 0.002)
Recommended
(0.020)
PCB plated
thru hole:
0.51
(0.050)
1.27
(0.125)
Tabs
3.18
DETAIL B
(0.110)
(0.122)
2.79
3.09
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