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WFH160L150J

Wirewound Resistors - Chassis Mount 160watt 150ohm 5% High Power

器件类别：无源元件   

厂商名称：Ohmite

厂商官网：https://www.ohmite.com

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器件参数
参数名称
属性值
产品种类
Product Category
Wirewound Resistors - Chassis Mount
制造商
Manufacturer
Ohmite
RoHS
No RoHS Version Available
电阻
Resistance
150 Ohms
功率额定值
Power Rating
160 W
容差
Tolerance
5 %
温度系数
Temperature Coefficient
150 PPM / C
电压额定值
Voltage Rating
1.2 kV
工作温度范围
Operating Temperature Range
0 C to + 300 C
长度
Length
140 mm
宽度
Width
51 mm
高度
Height
12.6 mm
类型
Type
Aluminum Housed Resistor
产品
Product
Wirewound Resistors
端接类型
Termination Style
Solder Lug
文档预览
WFH Series
Aluminum Housed Wirewound Power
Ohmite’s new flat core winding technology allows for wire-
wound heatsinkable resistors affording a very low profile, and
superior thermal transfer characteristics when compared to
conventional aluminum housed wirewound resistors.
Close mounting of heat sensitive components is possible
due to only a slight rise of the temperature on the aluminum
profile.
No heat sink compound is required because of large mount-
ing surface.
F e at u r e S
• Solder lug, wire, and “Fast-on” amp ter-
minations
• Multiple resistors in one profile possible
• Custom wire lengths available
S e r i e S S P e c i F i c at i O N S
*at 40°C base plate temperature
Type
WFH90
WFH160
WFH230
WFH330
Power Rating*
(watts)
90
160
230
330
Resistance Range
(Ω)
0.22Ω – 6.8K
0.47Ω-18K
0.82Ω-27K
1Ω - 39K
cHaracteriSticS
Power rating
90W-330W
Resistance
±5%, ±10%
tolerance
Temperature
Normal: 50ppm - 150ppm
Coefficients
Low ohmic values: 400ppm
Dielectric
2500 VAC peak
strength
Working voltage
1200 VAC
Test voltage
6000 VAC
Lead wire
(wire terminal version only): XLPE, 600V, 125C,
18 AWG stranded
Insulation
Silicone Rubber & Mica. The Silicone is
UL-recognised (UL 94 HB) to a working tem-
perature of 220°C. Temperatures of up to
300°C can be endured for shorter periods.
This may however cause an expansion of the
silicone rubber with a possibility of reducing
the dielectric strength.
Min. Storage &
-40˚C
Operating Temp.
W/Resistor
Power Dissipation
350
300
250
200
150
100
50
0
WFH330
WFH230
WFH160
WFH90
40°
60°
80°
100°
120°
Heat Sink Temperature,
°C
140°
This graph shows the maxi-
mum wattage rating for each
possible resistor of standard
size corresponding to the
heat sink temperature. It is
assumed that all resistors
are equally loaded.
Thermal Resistances
Thermal Resistance (°C/W) between different
measuring points
resistor
surface to
heat sink
R
TH
1
R
TH
2
R
TH
3
R
TH
4
WFH90 WFH160 WFH230 WFH330
2
1
0.75
0.5
6.8
3.9
2.75
2
0.1
0.05
0.03
0.02
0.3
0.17
0.1
0.085
R
TH4
aluminum
housing
to air
R
TH2
aluminum
housing to
heat sink
R
TH3
R
TH1
wire to
aluminum
housing
THIS PRODUCT IS DESIGNED FOR
USE WITH PROPER HEATSINKING.
Maximum base plate temperature of the resistor must be monitored
and kept within specified limits to establish the power rating. Best
technique is to attach a thermocouple to the side of the base plate of
the resistor. Temperature of plastic housing or heat sink cannot be
used to establish rating of the resistor.
(continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
133
WFH Series
The following equations are
applied in the dimensioning of
the resistors at stationary load.
If more information is required
please consult Ohmite. It is as-
sumed that the air around the
resistors is stationary (worst
case).
See ohmite.com for more
examples.
Aluminum Housed Wirewound Power
d e S i g N i N F O r m at i O N
1. WFH is mounted on a heat sink:
A. The thermal resistance R
TH
of the heat sink is known,
T = W
MAX
x (R
TH4
+ R
TH
)
Check that:
T
MAX
= W
MAX
x (R
TH
+ R
TH3
+ R
TH1
) + T
AMB
<220°C
B. The Temperature of the Heat Sink is known,
T = W
MAX
x R
TH4
+ T
H
Check that:
T
MAX
= W
MAX
x (R
TH1
+ R
TH3
) + T
H
<220°C
2. WFH is mounted without a heat sink:
Check that:
T
MAX
= W
MAX
x (R
TH1
+ R
TH2
) + T
AMB
<220°C
Where:
W
MAX
= Maximum reguired load in resistor
T
MAX
= Maximum hot spot temperature reguested in resistor (T
MAX
<220°C)
The lower T
MAX
the higher reliability and lifetime.
T
AMB
= Ambient temperature
R
TH
= Thermal resistance. Refer to table Thermal resistances
= Heat sink temperature (chassis).
T
H
T
= Temperature on top of the Aluminum profile.
dimeNSiONS
(mm)
Type
WFH160
WFH90
Watts
160
90
A
140
70
B
39.7
2x 80
80
L
123
53
10
WFH230
WFH330
230
330
210
280
2x 100
193
263
ø4.5
L
6.3
13.6
41 51
12.6
0.8
8
ø2.2
300
4.8
0.6
6
Amp
terminal
15
Lug
terminal
Wire
terminal
B
A
O r d e r i N g i N F O r m at i O N
RoHS
Compliant
Series
Wattage
at 40°C
base plate
temp.
Ohms
Terminal Type
L = lug terminals R47=
0.47Ω
A = amp terminals
W= 30cm insulated wire cable 18AWG
Tolerance
J = 5%
K = 10%
Standard part numbers
WFH90L4R7KE
WFH90L10RKE
WFH90L25RJE
WFH90L50RJE
WFH90L100JE
WFH90L470JE
WFH90L750JE
WFH90L1K0JE
WFH90L2K7JE
WFH90L5K0JE
WFH160LR47KE
WFH160L1R0KE
WFH160L2R0KE
WFH160L10RKE
WFH160L27RJE
WFH160L50RJE
WFH160L75RJE
WFH160L100JE
WFH160L150JE
WFH160L250JE
WFH160L1K0JE
WFH160L5K0JE
WFH160L10KJE
WFH230L1R0KE
WFH230L2R0KE
WFH230L5R0KE
WFH230L10RKE
WFH230L27RJE
WFH230L50RJE
WFH230L75RJE
WFH230L100JE
WFH230L150JE
WFH230L250JE
WFH230L1K0JE
WFH230L1K5JE
WFH230L2K5JE
WFH330L1R0KE
WFH330L2R0KE
WFH330L10RKE
WFH330L27RJE
WFH330L50RJE
WFH330L75RJE
WFH330L100JE
WFH330L150JE
WFH330L250JE
WFH330L1K0JE
WFH330L5K0JE
WFH330L10KJE
134
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
查看更多>
参数对比
与WFH160L150J相近的元器件有：WFH90L750J、WFH330L27RJ、WFH230L1R0K、WFH230L27RJ、WFH160L1R0K、WFH230L50RJ、WFH230L5R0K。描述及对比如下：
型号 WFH160L150J WFH90L750J WFH330L27RJ WFH230L1R0K WFH230L27RJ WFH160L1R0K WFH230L50RJ WFH230L5R0K
描述 Wirewound Resistors - Chassis Mount 160watt 150ohm 5% High Power Wirewound Resistors - Chassis Mount 90watt 750ohm 5% High Power Wirewound Resistors - Chassis Mount 330watt 27ohm 5% High Power Wirewound Resistors - Chassis Mount 230watt 1ohm 10% High Power Wirewound Resistors - Chassis Mount 230watt 27ohm 5% High Power Wirewound Resistors - Chassis Mount 160watt 1ohm 10% High Power Wirewound Resistors - Chassis Mount 230watt 50ohm 5% High Power Wirewound Resistors - Chassis Mount 230watt 5ohm 10% High Power
产品种类
Product Category		 Wirewound Resistors - Chassis Mount Wirewound Resistors - Chassis Mount Wirewound Resistors - Chassis Mount Wirewound Resistors - Chassis Mount Wirewound Resistors - Chassis Mount Wirewound Resistors - Chassis Mount Wirewound Resistors - Chassis Mount Wirewound Resistors - Chassis Mount
制造商
Manufacturer		 Ohmite Ohmite Ohmite Ohmite Ohmite Ohmite Ohmite Ohmite
RoHS No RoHS Version Available No RoHS Version Available No RoHS Version Available No RoHS Version Available No RoHS Version Available No RoHS Version Available No RoHS Version Available No RoHS Version Available
电阻
Resistance		 150 Ohms 75 Ohms 27 Ohms 1 Ohms 27 Ohms 1 Ohms 50 Ohms 5 Ohms
功率额定值
Power Rating		 160 W 90 W 330 W 230 W 230 W 160 W 230 W 230 W
容差
Tolerance		 5 % 5 % 5 % 10 % 5 % 10 % 5 % 10 %
温度系数
Temperature Coefficient		 150 PPM / C 150 PPM / C 150 PPM / C 150 PPM / C 150 PPM / C 150 PPM / C 150 PPM / C 150 PPM / C
电压额定值
Voltage Rating		 1.2 kV 1.2 kV 1.2 kV 1.2 kV 1.2 kV 1.2 kV 1.2 kV 1.2 kV
工作温度范围
Operating Temperature Range		 0 C to + 300 C 0 C to + 300 C 0 C to + 300 C 0 C to + 300 C 0 C to + 300 C 0 C to + 300 C 0 C to + 300 C 0 C to + 300 C
长度
Length		 140 mm 70 mm 280 mm 210 mm 210 mm 140 mm 210 mm 210 mm
宽度
Width		 51 mm 51 mm 51 mm 51 mm 51 mm 51 mm 51 mm 51 mm
高度
Height		 12.6 mm 12.6 mm 12.6 mm 12.6 mm 12.6 mm 12.6 mm 12.6 mm 12.6 mm
类型
Type		 Aluminum Housed Resistor Aluminum Housed Resistor Aluminum Housed Resistor Aluminum Housed Resistor Aluminum Housed Resistor Aluminum Housed Resistor Aluminum Housed Resistor Aluminum Housed Resistor
产品
Product		 Wirewound Resistors Wirewound Resistors Wirewound Resistors Wirewound Resistors Wirewound Resistors Wirewound Resistors Wirewound Resistors Wirewound Resistors
端接类型
Termination Style		 Solder Lug Solder Lug Solder Lug Solder Lug Solder Lug Solder Lug Solder Lug Solder Lug
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