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參數資料
型號: 506902B00000G
廠商: Aavid Thermalloy
文件頁數: 2/116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: 1,000
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: 0.700"(17.78mm)
寬: 1.25"(31.75mm)
機座外的高度(散熱片高度): 0.375"(9.52mm)
溫升時的功耗: 1W @ 20°C
在強制氣流下的熱敏電阻: 在 600 LFM 時為6°C/W
自然環境下的熱電阻: 20°C/W
材質:
材料表面處理: 黑色陽極化處理
其它名稱: 001330
10
HO
W
T
O
S
ELECT
A
HEA
T
SINK
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
Find a heat sink to keep a TO-220 device below the maximum
150 °C junction temperature in forced convection at 400 ft/min.
Device must be electrically insulated and mounted with a labor
saving clip.
Given:
PD = 12 watts
RθJC = 2.5°C/W (from semiconductor manufacturer)
TJ max = 140°C (from semiconductor manufacturer)
TA max = 50°C
A Hi-Flow pad works great with clip mounting and provides the
necessary electrical insulation. Thermal resistance for
Hi-Flow at low pressure is 1.15°C/W (from page 87).
Using equation 1, solve for RθSA
RθSA = 140 – 50 - (2.5 + 1.15) = 3.85°C/W
12
Many styles are available. If board space is a concern,
533202B02551G (pg 55) meets the requirements.
According to the above graph, an airflow of 400 ft/min results
in a thermal resistance of 3°C/W. This is less than the required
thermal resistance of 3.85°C/W and is therefore acceptable
under these airflow conditions.
If height is a concern, 533702B02552G would meet the
requirements and is only 1.0” tall
Find a space saving heat sink to keep a TO-220 device below the
maximum 150°C junction temperature in natural convection. Device
will be screw mounted with an electrically conductive interface.
Given:
PD = 6 watts
RθJC = 3°C/W (from semiconductor manufacturer)
TJ max = 150°C (from semiconductor manufacturer)
TA max = 65°C
A KonduxTM pad is a good choice for electrically conductive
applications. Thermal resistance for KonduxTM can be determined
from the following graph.
Example B
Example A
Typical TO-220 Performance
Screw Torque (in-lb)
0.00
012
3
4
5
R
(C/W
)
CS
0.10
0.20
0.30
0.40
0.50
0.60
6
How To Select a Heat Sink
At 2 in-lb of torque the thermal resistance
is approximately RθCS = 0.5°C/W
Using equation 1, solve for RθSA
RθSA = 150 – 65 - ( 3 + 0.5) = 10.7°C/W
6
The Index by Heat Sink Style on page 8 lists space saving heat sinks.
Several models are in the 10 °C/W range. Choose the one that best
fits the application and verify thermal resistance from graph.
Part number 593202B03500G shows
a 60 °C temperature rise at 6 watts.
RθSA = 60 = 10.0°C/W
6
Which meets the above requirement in natural convection.
Air Velocity—Feet Per Minute
Heat Dissipated—Watts
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Air Velocity—Feet Per Minute
Heat Dissipated—Watts
Th
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Resistanc
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t—°C/W
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53330X
53320X
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Hi-Flow is a trademark of the Bergquist Company
相關PDF資料
PDF描述
5767006-6 CONN PLUG 228POS R/A .025 SMD
767006-6 CONN PLUG 228POS R/A .025 SMD
767143-4 CONN RCPT 152POS R/A .025 SMD
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C3539/50 100 CABLE 50 COND FLAT .050" GRAY
相關代理商/技術參數
參數描述
506902B30000 制造商:Aavid Thermalloy 功能描述:BOARD LEVEL STAMPED HEAT SINKS
506903-000 制造商:TE Connectivity 功能描述:MTCRP-JH1-P32
50-69-1553 制造商:MOLEX 功能描述:4POS .100 ST V-0 HSG
50692 制造商:Midcom 功能描述:
50692-1 制造商:PITOM 功能描述:
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