251G Aavid Thermalloy, 251G Datasheet - Page 89

• 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

Solderable mounts can be factory installed to practically
every board-mountable heat sink and flat sided extrusion.
The female threaded through holes permit pre-assembly
to the semiconductor via machine screws , allowing the
heat sink/semiconductor package to be treated as one unit
when fitted in PC board through holes for wave soldering.
FEATURES
Wave-On
Saves production time and cost
• Cuts production steps by half
• Factory installation eliminates steps
• Permits soldering in one step
• All the benefits of female threaded mount
• Automated fastening
• Excellent solderability
Better thermal performance
• Built in stand-off adds air space between PCB
• No lockwashers, nuts or separate
ORDERING INFORMATION
Ordering code
01
02
03
04
05
07
09
Model
EA, EG
E, EK, EM, ER
EH
and heat sink for improved air flow and easier
cleaning
mounts with various thread lengths
www.aavidthermalloy.com
TM
Model
Dia of PCB plated
Mounts
EM
EA
EG
EH
EK
ER
example part
E
3.68 (0.145)
4.75 (0.187)
4.75 (0.187)
thru hole
4.32 (0.170)
3.43 (0.135)
3.43 (0.135)
4.32 (0.170)
4.32 (0.170)
4.32 (0.170)
4.32 (0.170)
“A” Dim
574802B0 _ _ 00G
AMERICA
EUROPE
thickness “T”
1.57 (0.062)
1.57 (0.062)
2.29 (0.090)
Ordering code
2.54 (0.100)
2.54 (0.100)
2.54 (0.100)
3.43 (0.135)
2.54 (0.100)
2.54 (0.100)
2.54 (0.100)
PCB
“B” Dim
Italy Tel: [phone] email: [e-mail]
United Kingdom Tel: [phone] email: [e-mail]
USA Tel: [phone] email: [e-mail]
2.54 (0.100)
2.54 (0.100)
1.14 (0.045)
2.54 (0.100)
1.14 (0.045)
2.54 (0.100)
5.08 (0.200)
“C” Dim
0.96 (0.038)
0.96 (0.038)
0.96 (0.038)
0.96 (0.038)
0.96 (0.038)
0.96 (0.038)
0.96 (0.038)
“D” Dim
Typical Wave-On
thru holes
Threaded
#6-32
#4-40
#4-40
#6-32
#6-32
3.5MM
#6-32
TM
ASIA
mount installation
(0.312)
7.92
"A"
Singapore Tel: [phone] email: [e-mail]
Taiwan Tel: [phone] email: [e-mail]
Wave-On
PC BOARD
DIM "T"
HEAT SINK
STAND-OFF LENGTH
TM
DIM "C"
"D"
"C"
"B"
Mounts
89