UW Series
FEATURES
•
•
•
•
•
•
•
Resistances from 0.01 to 91kOhms
Tolerance to ±0.01%
Low Temperature Coefficient
Power Rating to 15Watts
All Welded Resistance Element
Non-Inductive Windings are Available
Flameproof Inorganic Construction
TABLE 1—SPECIFICATIONS
Tolerances
Temperature Coefficient
±0.01% to ±10% ( 1% Standard )
>10W : ±20ppm/K
1W to10W : ±50ppm/K
<1W : Call Factory
-55°C to +275°C
1500 VAC
Centerless ground ceramic core
Tinned copper or copperweld leads
High temperature / inorganic potting compound
All welded terminations
Temperature Range
Dielectric Strength
Constuction
Environmental Performance
(MIL-STD 202)
DR
±0.2% + 0.05W
±1% + 0.05W
±0.2% + 0.05W
±0.2% + 0.05W
±0.2% + 0.05W
±0.2% + 0.05W
±0.1% + 0.05W
±0.1% + 0.05W
Dielectric
Load Life
Storage
Moisture Resistance
Thermal Shock
5X Overload ( 5s )
Shock
Vibration
FIGURE 1—DERATING
Power Derating Curve
120
100
Power ( % )
80
60
40
20
0
0
50
100
150
200
250
300
350
Ambient Temperature (°C)
ORDERING INFORMATION
Part Number - Resistance - Tolerance - TCR ( If not standard )
UW-5 100 Ohm 1%
For Non-Inductive Windings / insert the letter “N” ( i.e. UWN-5 )
Document No.: 64329
Revision: 31-01-2015
For technical questions,
contact
powertron@vpgsensors.com
www.powertron.de
1
UW Series
TABLE 1—SPECIFICATIONS (continued)
Power Rat-
ing
W @ 70°C
Resistance
1
Range
0.01 to 22k
0.01 to 22k
0.01 to 45k
0.01 to 65k
0.01 to 91k
Type
UW-2
UW-3
UW-5
UW-10
UW-15
1
2
L
±0.04 [±1.0]
0.700 [17.8]
0.875 [22.2]
0.875 [22.2]
1.875 [48]
1.875 [48]
H
±0.04 [±1.0]
0.245 [6.2]
0.312 [7.9]
0.375 [9.5]
0.375 [9.5]
0.500 [12.7]
HS
±0.04 [±1.0]
0.300 [7.6]
0.375 [9.5]
0.437 [11.1]
0.500 [12.7]
0.625 [15.9]
W
0.255 [6.5]
0.312 [7.9]
0.375 [9.5]
0.375 [9.5]
0.500 [12.7]
d
2
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
0.040 [1.0]
0.040 [1.0]
±0.015 [±0.4] ±0.015 [±0.4]
2
3
5
10
15
For non-inductive windings / divide maximum resistance by 2
Lead Diameter: 18 AWG = 0.040” / 20 AWG = 0.032”
www.powertron.de
2
For technical questions,
contact
powertron@vpgsensors.com
Document No.: 64329
Revision: 31-01-2015
Legal Disclaimer Notice
Vishay Precision Group, Inc.
Disclaimer
ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.
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(collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in
any other disclosure relating to any product.
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not limited to, the warranty expressed therein.
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application or use of any product, (ii) any and all liability, including without limitation special, consequential or
incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose,
non-infringement and merchantability.
Information provided in datasheets and/or specifications may vary from actual results in different applications and
performance may vary over time. Statements regarding the suitability of products for certain types of applications
are based on VPG’s knowledge of typical requirements that are often placed on VPG products. It is the customer’s
responsibility to validate that a particular product with the properties described in the product specification is suitable for
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No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or by any
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The products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise
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Please contact authorized VPG personnel to obtain written terms and conditions regarding products designed for such
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Copyright Vishay Precision Group, Inc., 2014. All rights reserved.
Document No.: 63999
Revision: 15-Jul-2014
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