參數(shù)資料
型號: 576012B00000G
廠商: Aavid Thermalloy
文件頁數(shù): 106/116頁
文件大?。?/td> 0K
描述: BOARD LEVEL HEAT SINK
產(chǎn)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: 0.900"(22.86mm)
寬: 1.000"(25.40mm)
機座外的高度(散熱片高度): 0.380"(9.65mm)
溫升時的功耗: 2W @ 40°C
在強制氣流下的熱敏電阻: 在 700 LFM 時為4°C/W
自然環(huán)境下的熱電阻: 20.8°C/W
材質(zhì):
材料表面處理: 黑色陽極化處理
其它名稱: 002387
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
相關(guān)PDF資料
PDF描述
767032-4 CONN PLUG 152POS VERT .025 SMD
767017-4 CONN PLUG 152POS VERT .025 SMD
6222BG BOARD LEVEL HEAT SINK
1590STPCOR BOX ALUM OCT 5.23X5.23X1.54" ORG
1590STPCBK BOX ALUM OCT 5.23X5.23X1.54" BLK
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
576012U00000G 制造商:Aavid Thermalloy 功能描述:HEAT SINKS MISC. - Bulk 制造商:Aavid Thermalloy 功能描述:TO-220 Package 20.80 C/W Thermal Resistance Mounting Channel Style Heat Sink
5760140 功能描述:CONN RCPT 14POS 30-22AWG SLD CUP RoHS:是 類別:連接器,互連式 >> D形,Centronics 系列:57 產(chǎn)品變化通告:52755 Series Obsolescence 19/May/2009 標準包裝:1 系列:52755 連接器類型:外罩觸點 連接器類型:插座 位置數(shù):120 行數(shù):2 安裝類型:面板安裝,通孔,直角 端子:焊接 法蘭特點:螺紋插件(M5) 類型:- 特點:板鎖,屏蔽 觸點表面涂層:金 觸點涂層厚度:30µin(0.76µm) 其它名稱:052755-1209052755-1209-E05275512090527551209-E52755-1209-E527551209527551209-EQ2711871SD-52755-001
57-60140 功能描述:I/O 連接器 RECPT. RoHS:否 制造商:Hirose Connector 產(chǎn)品:Plugs 系列:DH 端口數(shù)量: 位置/觸點數(shù)量:51 節(jié)距:1 mm 觸點電鍍: 觸點材料: 型式:Male 電流額定值:0.5 A 安裝風格:Cable 端接類型:IDC 顏色: 安裝角:
57601400 制造商:Eaton Corporation 功能描述:TOTALIZER; RATE METER/TACHOMETER; AMBASSADOR TOTALIZER / RATE INDICATOR 115 VAC 制造商:Eaton Corporation 功能描述:MULTIFUNCTION COUNTER
57601401 制造商:Eaton Corporation 功能描述:TOTALIZER; AMBASSADOR SINGLE PRESET COUNT CONTROL WITH RATE 115VAC 制造商:Eaton Corporation 功能描述:MULTIFUNCTION COUNTER 制造商:Eaton Corporation 功能描述:MULTIFUNCTION COUNTER; No. of Digits / Alpha:8; Supply Voltage Range:115V AC, 230V AC, 10V DC to 15V DC; Power Consumption:7W; Panel Cutout Height:68.07mm; Panel Cutout Width:68.07mm; Counting Speed:40kHz; Character Size:0.3" ;RoHS Compliant: Yes