參數(shù)資料
型號： 4952G
廠商： Aavid Thermalloy
文件頁數(shù)： 2/116頁
文件大?。?/td> 0K
描述： THERMAL EPOXY
MSDS 材料安全數(shù)據(jù)表： 4952A THERMALBOND MSDS
4952B THERMALBOND MSDS
標(biāo)準(zhǔn)包裝： 1
系列： Thermalbond™
類型： 環(huán)氧樹脂硬化劑
尺寸/尺寸： 7 盎司包裝
其它名稱： 033870
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
Th
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Moun
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t—°C
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
Moun
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t—°C
Hi-Flow is a trademark of the Bergquist Company
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
4952P 制造商:3M Electronic Products Division 功能描述:
4952-WHITE-1"X36YD 功能描述:TAPE VHB ACRYLIC FOAM 1"X 36YD RoHS:是 類別:膠帶，粘合劑 >> 帶 系列:VHB™ 4952 MSDS 材料安全數(shù)據(jù)表:42x, 43x, 140x, 141x, 1449, 1450, 433,438,33xx MSDS 標(biāo)準(zhǔn)包裝:1 系列:425 膠帶類型:鋁箔 膠合劑:丙烯酸 背襯，載體:鋁，極軟的 厚度:0.0046"（4.6 mils，0.117mm） 厚度 - 膠合劑:0.0016"（1.6 mils，0.041mm） 厚度 - 背膠，載體，襯墊:0.0028"（2.8 mils，0.071mm） 寬:2.00"（50.80mm） 長度:15'（4.6m）5 碼 顏色:銀 使用:熱耗散，反射 溫度范圍:-65 ~ 300°F（-54 ~ 149°C） 包裝:散裝 工具箱:3M10454-ND - MRO TAPE KIT - PREMIUM3M10451-ND - MRO TAPE KIT - STANDARDTK3434-ND - HOME TAPE KIT - PREMIUM3M10395-ND - DESIGN ENGR SOLUTION SEMINAR KIT3M10394-ND - DESIGN ENGR METAL FOIL TAPE KIT 其它名稱:3M9778
4952-WHITE-1/2"X36YD 功能描述:TAPE VHB ACRYLIC FOAM 1/2"X 36YD RoHS:是 類別:膠帶，粘合劑 >> 帶 系列:VHB™ 4952 MSDS 材料安全數(shù)據(jù)表:42x, 43x, 140x, 141x, 1449, 1450, 433,438,33xx MSDS 標(biāo)準(zhǔn)包裝:1 系列:425 膠帶類型:鋁箔 膠合劑:丙烯酸 背襯，載體:鋁，極軟的 厚度:0.0046"（4.6 mils，0.117mm） 厚度 - 膠合劑:0.0016"（1.6 mils，0.041mm） 厚度 - 背膠，載體，襯墊:0.0028"（2.8 mils，0.071mm） 寬:2.00"（50.80mm） 長度:15'（4.6m）5 碼 顏色:銀 使用:熱耗散，反射 溫度范圍:-65 ~ 300°F（-54 ~ 149°C） 包裝:散裝 工具箱:3M10454-ND - MRO TAPE KIT - PREMIUM3M10451-ND - MRO TAPE KIT - STANDARDTK3434-ND - HOME TAPE KIT - PREMIUM3M10395-ND - DESIGN ENGR SOLUTION SEMINAR KIT3M10394-ND - DESIGN ENGR METAL FOIL TAPE KIT 其它名稱:3M9778
4952-WHITE-1/2X36YD 制造商:3M Electronic Products Division 功能描述:
4953 功能描述:速度傳感器 ATOM & PROX RoHS:否 制造商:Honeywell 最大工作溫度:+ 120 C 電源電壓: 電源電流: 輸出電壓:190 V 工作電源電壓: 安裝風(fēng)格:Screw 最小工作溫度:- 55 C 系列:High Output VRS
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