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UPW25

更新时间: 2024-11-20 06:02:11
品牌 Logo 应用领域
泰科 - TE 电阻器线绕电阻器
页数 文件大小 规格书
2页 371K
描述
Ultra Precision Wire-Wound Resistors

UPW25 数据手册

 浏览型号UPW25的Datasheet PDF文件第2页 
Ultra Precision Wire-Wound Resistors  
Type UPW Series  
Characteristics -  
Electrical  
Type UPW Series  
UPW15  
UPW25  
UPW30  
UPW50  
Rated Power @ 125°C (W)  
Derate to zero at 145°C  
0.125  
0.25  
0.3  
0.5  
Resistance Range (Ohms) Min  
Max  
R10  
300K  
R10  
1M0  
R10  
1M0  
R10  
2M0  
Tolerance (%)  
0.005 0.01 0.02 0.05 0.1 0.2 0.5 1  
Code Letter  
E
L
P
W
B
A
D
F
Limiting Element Voltage (V)  
Temperature Coefficient (ppm/°C) Typ.  
Max.  
Operating Temperature Range (°C)  
Long Term Stability (Load)  
150  
300  
150  
400  
3 (0°C to +85°C)  
The resistive element is wire wound  
5 (-55°C to +125°C) 1 available on request  
-55 to +145  
onto  
a
moulded high temperature  
plastic bobbin with a central former.  
The direction of winding is reversed  
part way through the winding, giving  
very low values of inductance.  
< 50 ppm @ 10,000 hrs  
< 100ppm @ 26,000 hrs  
< 0.2 µ V /°C  
Thermal EMF  
These Neohm resistors use bobbin  
assemblies with flattened lead ends,  
providing high resistance to pull,  
vibration and torsional forces during  
handling, assembly and life.  
Dimensions  
Style A  
Style B  
Key Features  
Custom weld tabs and copper  
weld leads ensure a good  
mechanical and electrical  
connection between the  
element and the lead wires.  
Protection is given to the  
windings by means of a layer  
of silicone RTV rubber. This  
allows movement of the  
windings during temperature  
cycling due to loads and  
to varying ambient  
Type  
Style  
L
0.4  
6.35  
D
0.4  
3.18  
W
0.5  
s
0.2  
d nom  
0.64  
0.64  
0.64  
0.81  
UPW15  
UPW25  
UPW30  
UPW50  
A
A
B
A
-
-
-
9.53  
7.62  
12.7  
4.75  
7.62  
6.35  
-
3.81  
-
3.18  
-
Derating Curve  
temperatures. Outer protec-  
tion is given by means of a  
hot transfer moulded epoxy  
compound which ensures an  
airtight coating with no  
trapped air.  
100  
80  
1%, 0.5%, 0.2%, 0.1%  
0.05%  
60  
40  
20  
0
0.02%  
0.01%  
Superior quality wire-wound  
resistors with very low  
selection tolerances and  
temperature coefficients  
down to 1 ppm. 3 case sizes  
are available. T/C, ratio and  
pair matching is available  
and customer specifications  
are welcome. These compo-  
nents exhibit high stability  
under load and severe  
0.005%  
40  
60  
80  
100  
120  
140  
160  
Ambient Temperature (°C)  
UPW Series resistors must be derated for tolerances below 0.1%. Use the graph to select tolerance versus operating  
temperature to determine the percentage rated power for operation.  
No derating is required for operation below 20 °C.  
environmental conditions.  
Mounting  
The resistors are suitable for processing on automatic insertion equipment and cutting and bending machines.  
Literature No. 1773299  
Issued: 04-05  
Dimensions are shown for  
reference purposes only.  
Dimensions are in millimetres Specifications subject to  
unless otherwise specified.  
www.tycoelectronics.com  
passives.tycoelectronics.com  
change.  

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