參數資料
| 型號： | 7021BG |
| 廠商： | Aavid Thermalloy |
| 文件頁數： | 102/116頁 |
| 文件大小： | 0K |
| 描述： | BOARD LEVEL HEAT SINK |
| 產品培訓模塊： | How to Select a Heat Sink |
| 標準包裝： | 500 |
| 類型： | 插件板級 |
| 冷卻式包裝： | TO-220 |
| 固定方法： | 把緊螺栓 |
| 形狀： | 矩形 |
| 長度： | 1.450"（36.83mm） |
| 寬： | 1.750"（44.45mm） |
| 機座外的高度（散熱片高度）： | 0.380"（9.65mm） |
| 溫升時的功耗： | 6W @ 50°C |
| 在強制氣流下的熱敏電阻： | 在 300 LFM 時為4°C/W |
| 自然環境下的熱電阻： | 6.8°C/W |
| 材質： | 鋁 |
| 材料表面處理： | 黑色陽極化處理 |
| 其它名稱： | 033614 |
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86
INTERF
A
CE
MA
TERIALS
EUROPE
ASIA
Italy Tel: +39 051 764011 email: sales.it@aavid.com
United Kingdom Tel: +44 1793 401400 email: sales.uk@aavid.com
Singapore Tel: +65 6362 8388 email: sales@aavid.com.sg
Taiwan Tel: +886 (2) 2698-9888 email: sales@aavid.com.tw
AMERICA
USA Tel: +1 (603) 224-9988 email: info@aavid.com
www.aavidthermalloy.com
In-Sil-8
TM
These silicone based pads provide both thermal
conductivity and electrical isolation. In-Sil-8
TM
pads have a fiberglass carrier that withstands
the rigors of assembly, harsh environments
and aging under continuous use. In-Sil-8
TM pads
install faster than traditional mica and grease
and will not contaminate solder baths. Screw
mounting is recommended to achieve the best
thermal performance.
The shape and hole pattern of the heat sink will determine the shape and hole
pattern of the pad. If you are ordering a heat sink which mounts to a semicon-
ductor on both sides, the ordering code for two pads should be used. To order
additional In-SilTM pads separate, or factory applied variations please contact
an Aavid sales rep for inquiries.
Interface Material/Pads
Color
Grey
Thickness
0.18 (0.007)
Breakdown voltage
3500
Dielectric constant
5.5
KonDux / Grafoil Conducta-Pad**
Kondux interface pads are a cost effective
alternative to thermally conductive grease
compounds. Kondux pads are electrically
conductive and ideal for use with small,
discrete semiconductors. Aavid pre-applies
Kondux to your heatsink to enhance heat
conductance from the semiconductor case
and speed your manufacturing process.
Color
Black (metallic)
Thickness
0.13 (0.005)
Thermal resistance
See Graph pg 10
Electrical resistivity
15 x 10-6 Ohms
Compression strength:
580 psi
for 10% reduction in thickness
Tensile strength
650 psi
Ultimate compression strength
12500 psi
Service temperature
-240°C to +300°C
Liner
None
(1.650)
41.91
(1.140)
28.96
2X
(0.093)
2.36
2X
(0.140)
3.56
507222B _ 0000G
Ordering code
575703B _ 0000G
Ordering code
ORDERING INFORMATION
example 12 digit part
ORDERING INFORMATION
example 12 digit part
MATERIAL PROPERTIES
Ordering code
Description
0
No pads
3
One In-Sil-8TM pad
4
Two In-Sil-8TM pads
The shape and hole pattern of the heat sink will determine the shape and hole
pattern of the pad. If you are ordering a heat sink which mounts to a semicon-
ductor on both sides, the ordering code for two pads should be used.
Ordering code
Device
Figure
"A" Dim
"B" Dim
"C" Dim
1 or 2*
TO-3
A
1 or 2*
TO-218
B
19.05 (0.750)
4.57 (0.180)
15.24 (0.600)
1 or 2*
TO-220
B
15.88 (0.625)
2.68 (0.105)
10.67 (0.420)
MATERIAL PROPERTIES
21.84
(0.860)
18.80
(0.740)
2.69
(0.160)
16.76
(0.660)
DIA
19.05
(0.750)
12.70
(0.500)
3.73
(0.147)
14.30
(0.563)
DIA
TO-3
TO-220
TO-218
Figure A
Figure B
*Factory applied only
One KonDuxTM pad
(1.650)
41.91
(1.140)
28.96
2X
(0.093)
2.36
2X
(0.140)
3.56
** The Grafoil name was originally marketed by Thermalloy and is the same material as KonduxTM
Grafoil is a registered trademark of the Union Carbide Company
Suffix
Device
Figure
"A" Dim
"B" Dim
"C" Dim
G1
TO-3
A
G4
TO-218
B
19.30 (0.760)
4.83 (0.190)
15.75 (0.620)
G5
TO-220
B
16.51 (0.650)
3.43 (0.135)
10.67 (0.420)
G7
Multiwatt
B
17.53 (0.690)
2.92 (0.115)
20.07 (0.790)
6109B -
G
A
example
Thermalloy origin part
B
C
A = Model number
B = Grafoil pad
C = RoHS compliant
"A"
"B"
"C"
TO-3
TO-220
TO-218
Thermal resistance (approx.)
0.33
1.25
0.77
Screw size
6-32
4-40
Torque in–lbs
6–8
4–6
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