参数资料
型号: 7022B-MTG
厂商: Aavid Thermalloy
文件页数: 2/116页
文件大小: 0K
描述: BOARD LEVEL HEAT SINK
产品培训模块: How to Select a Heat Sink
标准包装: 250
类型: 插件板级,垂直
冷却式包装: TO-220
固定方法: 螺栓固定和 PC 引脚
形状: 矩形
长度: 1.968"(49.99mm)
宽: 1.986"(50.44mm)
机座外的高度(散热片高度): 0.375"(9.52mm)
温升时的功耗: 10W @ 70°C
在强制气流下的热敏电阻: 在 800 LFM 时为1.75°C/W
自然环境下的热电阻: 6.5°C/W
材质:
材料表面处理: 黑色阳极化处理
其它名称: 042254
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
相关PDF资料
PDF描述
7023BG BOARD LEVEL HEAT SINK
7112N FAN TUBEAXIAL 150X38MM 12VDC
7114NH FAN TUBEAXIAL 150X38MM 24VDC
7114N FAN TUBEAXIAL 150X38MM 24VDC
7118N FAN TUBEAXIAL 150X38MM 48VDC
相关代理商/技术参数
参数描述
7022B-SE3 制造商:Aavid Thermalloy 功能描述:- Bulk
7022B-SE3/2 制造商:Aavid Thermalloy 功能描述:- Bulk
7022B-SF1-MT 制造商:Aavid Thermalloy 功能描述:- Bulk 制造商:Aavid Thermalloy 功能描述:Heat Sink Passive TO-218/TO-220 Folded Back Thru-Hole 6.5?C/W Black Anodized
7022B-TC11-MT 制造商:Aavid Thermalloy 功能描述:- Bulk 制造商:Aavid Thermalloy 功能描述:Heat Sink Passive TO-220 Folded Back Clip 6.5°C/W Black Anodized
7022B-TC11-MTG 制造商:Aavid Thermalloy 功能描述:TO-220 Package 6.50 C/W Thermal Resistance Heat Sink with Fins and Tab