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RWST25X138CS13KOHM+/-5%

型号：

RWST25X138CS13KOHM+/-5%

品牌：

VISHAY[ VISHAY ]

页数：

4 页

PDF大小：

230 K

下载PDF手册
RWST  
Vishay Sfernice  
Fixed Wirewound High Power Vitreous Resistors  
Electrical Traction Model  
FEATURES  
•
•
•
•
95 Watt to 800 Watt at 25°C  
NF C 93-214  
RB 25 x 168, RB 30 x 250  
Rugged construction for use in severe environmental  
conditions  
“CS” Type 1 Collars  
The RWST vitreous wirewound high power resistors are known for their excellent reliability which has developed out of the  
VISHAY SFERNICE experience over several decades in the field of high current applications.  
Extremely severe conditions of use are encountered in electrical traction including repeated overloads. To withstand  
such conditions the new RWST model is extremely rugged and is manufactured to a very carefully monitored process  
using the best materials  
DIMENSIONS in millimeters  
STAINLESS STEEL 304 L COLLARS“CS”type  
STAINLESS STEEL 304 L COLLARS“CS”type  
ØC  
A
A
D
23  
D
E
E
3
ØB  
26  
F
ØB  
58  
F
G
H
15  
J
G
H
15  
J
DIMENSIONS in millimeters  
RWST STYLE  
25 x 168  
25 x 138  
30 x 250  
40 x 370  
50 x 373  
CS  
Type 2/B/AN  
CS  
CS  
CS  
CS  
Connections  
Type 1/B/AN  
Type 1/B/AN  
Type 1/B/AN  
Type 2/B/AN  
168  
28  
A ± 2  
Ø B max.  
Ø C min.  
D
138  
28  
250  
33  
370  
45  
373  
53  
12  
12  
17  
22  
27.1  
50 ± 1  
27 ± 1  
24  
50 ± 1.5  
27 ± 1  
24  
60 ± 1.5  
30 ± 1  
25  
69 max.  
45 ± 1.5  
30  
80 max.  
51 ± 1.5  
30  
E
F ± 0.5  
– 4  
G
432  
432  
229  
199  
317  
– 0  
– 4  
H
199  
6.5  
169  
6.5  
287  
9
405  
9
405  
9
– 0  
J ± 0.5  
Average unit  
weight in g  
(CS collars)  
250  
1400  
2200  
445  
225  
Document Number: 50017  
Revision 13-Jan-04  
www.vishay.com  
61  
For technical questions, contact sfer@vishay.com  
RWST  
Fixed Wirewound High Power Vitreous Resistors  
Electrical Traction Model  
Vishay Sfernice  
MECHANICAL SPECIFICATIONS  
ELECTRICAL SPECIFICATIONS  
Mechanical Protection  
Resistive Element  
Connections  
Vitreous enamel  
Resistance Range  
2.7Ω to 430kΩ  
Ni-Cr wire  
(E12-E24 preferred series values)  
CS supporting collars  
on Request  
AN Collar or B  
Resistance Tolerance  
Average Unit Weight  
225 to 2200g  
Standard  
± 5%  
Power Rating  
95W to 800W at 25°C  
75ppm/°C (typical)  
0.1% year (typical)  
ENVIRONMENTAL SPECIFICATIONS  
Temperature Coefficient  
Shelf Life  
Temperature Limits  
– 55°C + 450°C  
Climatic Category  
– 55°C/+ 200°C/56 days  
PERFORMANCE  
TYPICAL VALUES AND DRIFTS  
TESTS  
CONDITIONS  
REQUIREMENTS  
2% or 0.05Ω  
10Pr during 5s  
Voltage limited at < 5000V  
Short Time Overload  
Climatic Sequence  
0.5%  
– 55°C  
+ 200°C  
2% or 0.05Ω  
Insulation resistance 100MΩ  
0.5%  
0.5%  
56 days  
95% relative humidity  
Humidity  
(Steady State)  
3% or 0.05Ω  
Insulation resistance 100MΩ  
Load at 100% Pr followed by cold  
temperature exposure at –55°C/15’  
Thermal Shock  
Shock  
0.5%  
0.25%  
0.25%  
0.5%  
2% or 0.05Ω  
1% or 0.05Ω  
1% or 0.05Ω  
1% or 0.05Ω  
severity 50A  
9 shocks/each side  
severity 55B  
Vibration  
AN  
B
Traction 40Ncm  
Torque 60Ncm  
Terminal Strength  
1000h  
5000h  
1%  
2%  
90’/30’ cycle  
1000h at Pr 25°C  
Load Life  
5%  
SPECIAL FEATURES  
RWST STYLE  
25 x 138  
25 x 168  
RB 25 x 168  
30 x 250  
RB 30 x 250  
280W  
40 x 370  
–
50 x 373  
–
Designation NF C 93-214  
Power Rating at 25°C  
–
95W  
160W  
180W  
500W  
700W  
Maximum Power  
Rating at 25°C  
110W  
600W  
800W  
P max.  
320W  
Ohmic Range  
4.7Ω  
220kΩ  
2.7Ω  
82kΩ  
2.7Ω  
100kΩ  
8.2Ω  
360kΩ  
12Ω  
430kΩ  
5000V  
30kΩ  
(E12, E24 series)  
3000V  
Limiting Element Voltage  
1400V  
1900V  
4500V  
30kΩ  
Critical Resistance  
18kΩ  
20kΩ  
36kΩ  
NON INDUCTIVE WINDING  
For high frequencies, low self induction resistors are available with special windings.  
RWSTNI designation.  
MODEL AND  
STYLE  
RWSTNI  
RWSTNI  
RWSTNI  
RWSTNI  
RWSTNI  
25 x 138  
25 x 168  
30 x 250  
40 x 370  
50 x 373  
120Ω  
6.8kΩ  
Ohmic range  
(E12 series)  
22Ω  
2.5kΩ  
120Ω  
8.2kΩ  
150Ω  
8.2kΩ  
22Ω  
4kΩ  
www.vishay.com  
62  
Document Number: 50017  
Revision 13-Jan-04  
For technical questions, contact sfer@vishay.com  
RWST  
Fixed Wirewound High Power Vitreous Resistors  
Electrical Traction Model  
Vishay Sfernice  
POWER RATING CHART  
100  
75  
50  
25  
0
0
65  
130  
195  
260  
325  
390  
455  
AMBIENT TEMPERATURE IN DEGREES CELSIUS  
TEMPERATURE RISE  
400  
300  
200  
100  
0
10  
100  
1000  
RATED POWER IN WATTS  
MARKING  
SFERNICE trademark, model, style, nominal resistance (in Ω ), tolerance (in %), manufacturing date.  
ORDERING INFORMATION  
NI  
CS  
30 x 250  
RWST  
6.8kΩ  
± 5%  
NON-INDUCTIVE  
BOBINAGE  
SPECIAL  
DESIGN  
CONNECTIONS  
MODEL  
STYLE  
OHMIC VALUE  
TOLERANCE  
Custom items are subject  
to extra-charge and min. order.  
Please see price list.  
Optional  
Optional  
Document Number: 50017  
Revision 13-Jan-04  
www.vishay.com  
63  
For technical questions, contact sfer@vishay.com  
Legal Disclaimer Notice  
Vishay  
Notice  
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,  
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.  
Information contained herein is intended to provide a product description only. No license, express or implied, by  
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's  
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express  
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness  
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.  
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.  
Customers using or selling these products for use in such applications do so at their own risk and agree to fully  
indemnify Vishay for any damages resulting from such improper use or sale.  
Document Number: 91000  
Revision: 08-Apr-05  
www.vishay.com  
1
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