參數(shù)資料
型號： 7141DG
廠商： Aavid Thermalloy
文件頁數(shù)： 2/116頁
文件大?。?/td> 0K
描述： BOARD LEVEL HEATSINK .515"TO-220
產(chǎn)品培訓(xùn)模塊： How to Select a Heat Sink
產(chǎn)品目錄繪圖： 7141DG
標(biāo)準(zhǔn)包裝： 2,000
類型： 插件板級，垂直
冷卻式包裝： TO-220
固定方法： 夾和 PC 引腳
形狀： 矩形
長度： 0.780"（19.81mm）
寬： 0.520"（13.21mm）
機(jī)座外的高度（散熱片高度）： 0.515"（13.08mm）
溫升時的功耗： 1W @ 30°C
在強(qiáng)制氣流下的熱敏電阻： 在 200 LFM 時為10.0°C/W
自然環(huán)境下的熱電阻： 20.3°C/W
材質(zhì)： 銅
材料表面處理： 錫
產(chǎn)品目錄頁面： 2672 (CN2011-ZH PDF)
其它名稱： 042648
7141DG-ND
HS414
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
ermal
Resistanc
eF
rom
MT
G
Sur
fac
et
oAmbien
t—°C/W
at
t
10
0
20
40
60
80
100
0
2
4
6
8
10
8
6
2
4
0
400
200
600
800
1000
Moun
ting
Sur
fac
eT
emp
Ri
se
A
bo
ve
Ambien
t—°C
Air Velocity—Feet Per Minute
Heat Dissipated—Watts
Th
ermal
Resistanc
eF
rom
MT
G
Sur
fac
et
oAmbien
t—°C/W
at
t
10
0
20
40
60
80
100
02
4
6
8
10
8
6
2
4
0
400
200
600
800
1000
53330X
53320X
Moun
ting
Sur
fac
eT
emp
Ri
se
A
bo
ve
Ambien
t—°C
Hi-Flow is a trademark of the Bergquist Company
相關(guān)PDF資料
PDF描述
7148DG BOARD LEVEL HEAT SINK
714F FAN TUBEAXIAL 70X15MM 24VDC
7212N FAN TUBEAXIAL 150X55MM 12VDC
7214N FAN TUBEAXIAL 150X55MM 24VDC
7218N FAN TUBEAXIAL 150X55MM 48VDC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
7141E 制造商:Excelta Corporation 功能描述:Cutter - Medium Round - Maximum Flush - 6" Carbon Steel - 18 AWG Capacity
7-141-P 制造商:Cinch Connectors 功能描述:
7141Y 制造商:Cinch Connectors 功能描述:CONN BARRIER BLOCK 7CIRC .438"
7-141-Y 功能描述:柵欄接線端子 7 TERMINAL 2 ROW .438 6-32x1/4" OPEN RoHS:否 制造商:TE Connectivity / AMP 產(chǎn)品:Barrier Terminal Blocks 系列: 類型:Dual Barrier, Flat Block without Mounting Ears 節(jié)距:9.53 mm 位置/觸點(diǎn)數(shù)量:2 線規(guī)量程:22-12 電流額定值:20 A 電壓額定值:300 V 安裝風(fēng)格:Through Hole 安裝角:Vertical 端接類型:Screw 觸點(diǎn)電鍍:Tin
7142 功能描述:旋鈕和轉(zhuǎn)盤 HNDL BRS N PL 3.00 RoHS:否 制造商:Davies Molding 材料:Phenolic 設(shè)計:Set Screw 軸尺寸:0.25 in 直徑:3/4 in 顏色:Black 指示器型式:Line
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*