UNR4-T220B50RD [TELEDYNE]
Highest Stability Near Temperature Independent; 稳定性最高温度接近独立![UNR4-T220B50RD](http://pdffile.icpdf.com/pdf1/p00111/img/icpdf/UNR4-T220_604662_icpdf.jpg)
型号: | UNR4-T220B50RD |
厂家: | ![]() |
描述: | Highest Stability Near Temperature Independent |
文件: | 总2页 (文件大小:103K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
USR UNR 4-T220 4-T220B 4-T221
USS UNS 4-T220
•
Highest Stability
• Near Temperature
Independent
• Lowest Tolerances
• Low Capacitance and
Inductance
• High Power
• Available also 2-pin version
SPECIFICATIONS
ELEKTRICAL
USR 4-T220
UNR 4-T220
note1)
Resistance range
Nominal power
:
:
0R2...80R
0R2...80R
1.5 W (70°C) without heatsink
10 W*
15 W*
* with heatsink
10.8 K/W
Thermal Resistance Rthj-c :
6.8 K/W
Tolerances
from 0R5
from 10R
from 50R
Stability
:
:
:
:
:
0.1%, 0.25%, 0.5%, 1%
0.05%, 0.1%, 0.25%, 0.5%, 1%
0.01%, 0.02%, 0.05%, 0.1%, 0.25%, 0.5%, 1%
0.01%
Temperature coefficient :
max. ±5 ppm/K (-55...155)°C
typ. ±3 ppm/K (-55...125)°C
upon request ±1 ppm/K (0...60)°C
1 kVDC
Voltage Proof
Thermal EMF
:
:
< 1 µV/K
ENVIRONMENTAL
Operating Temperature Range
:
-55°C...155°C
NiCr-Foil
Al2O3
Epoxy + heatsink Cu nickel plated
Cu, tinned, 4-pin
1.0 Nm
MECHANICAL Resistor Material
Substrate
:
:
:
:
:
AlN
Housing
Connector Material
Max. torque backplate
note1): Specially designed for applications with fast changing electrical load.
TEMPERATURE COEFFICIENT
600
+5 ppm/K
400
-5 ppm/K
200
0
Nominal-Spread
+/-2,3 ppm/K
+2,2 ppm/K
-200
-1,8 ppm/K
Nominal-dR/R
-400
-600
Nominal-Spread
+/ -2,3 ppm / K
100
0
25
50
75
125
-50
-25
Temperature (°C)
Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, UK
Tel. + 44 (0) 1342 835234, Fax. + 44 (0) 1342 834306, e-mail sales@willow.co.uk web www.willow.co.uk
USR UNR 4-T220 4-T220B 4-T221
USS UNS 4-T220
DERATING CURVE
120
100
80
60
40
20
0
25
50
85
100
115
130
145
155
Temperature of the backplate (°C)
DIMENSIONS
USR 4-T220
UNR 4-T220
Housing for special demands and
small quantities
USR 4-T220B / UNR 4-T220B
USR 4-T221 / UNR 4-T221
USS 4-T220 / UNS 4-T220
Dimensions in mm
HOW TO ORDER
USR 4-T220 0R5 D 0.25% TK5
UNR 4-T220B 50R D 0.1% TK1
Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, UK
Tel. + 44 (0) 1342 835234, Fax. + 44 (0) 1342 834306, e-mail sales@willow.co.uk web www.willow.co.uk
相关型号:
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_1.jpg)
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_2.jpg)
UNR4-T220B54.9OHMSC0.01%3PPM
Fixed Resistor, Metal Foil, 15W, 54.9ohm, 0.01% +/-Tol, -3,3ppm/Cel, 4016
VISHAY
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_1.jpg)
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_2.jpg)
UNR4-T220B56.9OHMSC0.05%1PPM
Fixed Resistor, Metal Foil, 15W, 56.9ohm, 0.05% +/-Tol, -1,1ppm/Cel, 4016
VISHAY
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_1.jpg)
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_2.jpg)
UNR4-T220B58.3OHMSC0.01%1PPM
Fixed Resistor, Metal Foil, 15W, 58.3ohm, 0.01% +/-Tol, -1,1ppm/Cel, 4016
VISHAY
![](http://pdffile.icpdf.com/pdf2/p00254/img/page/UNR4-T2200-7_1537794_files/UNR4-T2200-7_1537794_1.jpg)
![](http://pdffile.icpdf.com/pdf2/p00254/img/page/UNR4-T2200-7_1537794_files/UNR4-T2200-7_1537794_2.jpg)
UNR4-T220B6.12OHMSC0.1%1PPM
Fixed Resistor, Metal Foil, 15W, 6.12ohm, 0.1% +/-Tol, -1,1ppm/Cel, 4016
VISHAY
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_1.jpg)
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_2.jpg)
UNR4-T220B68.1OHMSC0.01%3PPM
Fixed Resistor, Metal Foil, 15W, 68.1ohm, 0.01% +/-Tol, -3,3ppm/Cel, 4016
VISHAY
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_1.jpg)
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_2.jpg)
UNR4-T220B69.8OHMSC0.01%1PPM
Fixed Resistor, Metal Foil, 15W, 69.8ohm, 0.01% +/-Tol, -1,1ppm/Cel, 4016
VISHAY
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_1.jpg)
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_2.jpg)
UNR4-T220B69OHMSC0.05%1PPM
Fixed Resistor, Metal Foil, 15W, 69ohm, 0.05% +/-Tol, -1,1ppm/Cel, 4016
VISHAY
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_1.jpg)
![](http://pdffile.icpdf.com/pdf2/p00258/img/page/UNS4-T22041-_1559208_files/UNS4-T22041-_1559208_2.jpg)
UNR4-T220B70.6OHMSC0.01%1PPM
Fixed Resistor, Metal Foil, 15W, 70.6ohm, 0.01% +/-Tol, -1,1ppm/Cel, 4016
VISHAY
![](http://pdffile.icpdf.com/pdf2/p00254/img/page/UNR4-T2200-7_1537794_files/UNR4-T2200-7_1537794_1.jpg)
![](http://pdffile.icpdf.com/pdf2/p00254/img/page/UNR4-T2200-7_1537794_files/UNR4-T2200-7_1537794_2.jpg)
UNR4-T220B72.3OHMSC0.1%1PPM
Fixed Resistor, Metal Foil, 15W, 72.3ohm, 0.1% +/-Tol, -1,1ppm/Cel, 4016
VISHAY
©2020 ICPDF网 联系我们和版权申明