參數資料
型號: 4952G
廠商: Aavid Thermalloy
文件頁數: 106/116頁
文件大?。?/td> 0K
描述: THERMAL EPOXY
MSDS 材料安全數據表: 4952A THERMALBOND MSDS
4952B THERMALBOND MSDS
標準包裝: 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
9
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
The basic equation for heat transfer or power dissipation may be stated as follows:
Where:
PD = the power dissipated by the semiconductor device in watts.
ΔT = the temperature difference of driving potential which causes the flow of heat.
ΣRθ = the sum of the thermal resistances of the heat flow path across which ΔT exists.
The above relationship may be stated in the following forms:
The above equations are generally used to determine the required thermal resistance of the heat sink (RθSA),
since the heat dissipation, maximum junction and/or case temperature, and ambient temperature are known or set.
How To Select a Heat Sink
Where:
TJ = the junction temperature in °C (maximum is usually stated by the manufacturer of the semiconductor device).
TC = case temperature of the semiconductor device in °C.
TS = temperature of the heat sink mounting surface in thermal contact with the semiconductor device in °C.
TA = ambient air temperature in °C.
RθJC = thermal resistance from junction to case of the semiconductor device in °C per watt
(usually stated by manufacturer of semiconductor device).
RθCS = thermal resistance through the interface between the semiconductor device
and the surface on which it is mounted in °C per watt.
RθSA = thermal resistance from mounting surface to ambient or thermal resistance of heat sink in °C per watt.
Figure 1 indicates the location of the various heat
flow paths, temperatures and thermal resistances.
The common practice is to represent the system with
a network of resistances in series as shown in Figure 2.
Atmosphere
or ambient
Mounting surface
(cooler/dissipator)
Semiconductor case
Junction
(heat source)
Interface
Heat flow path mounting
surface to ambient, equation (3)
Heat flow path case
to ambient equation (2)
Heat flow path junction
to ambient, equation (1)
P
D
P
D
T
A
R
θSA
R
θCS
R
θJC
T
S
T
C
T
A
T
J
TJ–TA
PD =
RθJC + RθCS + RθSA
TC–TA
PD =
RθCS + RθSA
TS–TA
PD =
RθSA
Δ T
PD =
ΣRθ
RθCS
RθJC
TS
TA
TJ
RθSA
TC
FIGURE 1
FIGURE 2
How to select a heat sink
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相關代理商/技術參數
參數描述
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 材料安全數據表:42x, 43x, 140x, 141x, 1449, 1450, 433,438,33xx MSDS 標準包裝: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 材料安全數據表:42x, 43x, 140x, 141x, 1449, 1450, 433,438,33xx MSDS 標準包裝: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: 安裝風格:Screw 最小工作溫度:- 55 C 系列:High Output VRS