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參數資料
型號: 6381BG
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: 500
類型: 插件板級,垂直
冷卻式包裝: TO-220,TO-218
固定方法: 螺栓固定和 PC 引腳
形狀: 矩形
長度: 1.50"(38.10mm)
寬: 1.650"(41.91mm)
機座外的高度(散熱片高度): 1.000"(25.40mm)
溫升時的功耗: 6W @ 50°C
在強制氣流下的熱敏電阻: 在 200 LFM 時為3.5°C/W
自然環境下的熱電阻: 5.8°C/W
材質:
材料表面處理: 黑色陽極化處理
其它名稱: 041502
10
HO
W
T
O
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ELECT
A
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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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53330X
53320X
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Hi-Flow is a trademark of the Bergquist Company
相關PDF資料
PDF描述
6380BG BOARD LEVEL HEAT SINK
191R,AL BOX 9.50X6.34X1.50 ALMOND
AXN420C040P CONN HEADER .8MM 20POS SMD
1590WNBK BOX ALUM 4.72X2.58X1.61" BLACK
AXN420040P CONN HEADER .8MM 20POS SMD
相關代理商/技術參數
參數描述
6381G1 功能描述:重負荷電源連接器 SBX175 HOUSING ONLY BLUE RoHS:否 制造商:Hirose Connector 系列:PS2 產品類型:Connectors 位置/觸點數量: 端接類型:Crimp 觸點材料: 觸點電鍍:Gold 電壓額定值: 電流額定值:300 A 附件類型:
6381-SL001 制造商:Alpha Wire 功能描述:
6381-SL002 制造商:Alpha Wire 功能描述:
6381-SL005 制造商:Alpha Wire 功能描述:
6381-SLATE-100 制造商:Alpha Wire 功能描述:
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