UT Series
Powertron
FEATURES
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•
•
•
•
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Resistances from 0.02 to 320kOhms
Power Rating 0.1 to 13Watts
Resistance Tolerances to ± 0.01%
Low TCR: ± 20ppm/K Standard
MIL-R-26 / MIL-R-39007 Power Ratings
Temperature Range: -55°C to +350°C (V)
Non-Inductive Windings Available
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 : Characteristic U
-55°C to +350°C : Characteristic V
500 VAC : UT-1 / UT-1/2A / UT-1/2 / UT-1A
1000 VAC : All Others
Centerless ground ceramic core
Tinned copper or copperweld leads
High temperature / trivalent / inorganic Silicone coating
All welded terminations
Temperature Range
Dielectric Strength
Constuction
Environmental Performance
(MIL-STD 202)
DR
Characteristic U
±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
Characteristic V
±0.2% + 0.05W
±3% + 0.05W
±2% + 0.05W
±2% + 0.05W
±2% + 0.05W
±2% + 0.05W
±0.2% + 0.05W
±0.2% + 0.05W
Dielectric
Load Life
Storage
Moisture Resistance
Thermal Shock
5X Overload ( 5s )
Shock
Vibration
FIGURE 1—DERATING
120
100
Power (%)
80
60
40
20
0
0
25
50
100 150 200 275
Ambient Temperature (°C)
300
350
Char V
Char U
ORDERING INFORMATION
Part Number - Resistance - Tolerance - TCR ( If not standard )
UT-5 25kOhms 0.1%
For Non-Inductive Windings / insert the letter “N” ( i.e. UTN-5 )
Document No.: 64327
Revision: 23-05-2013
For technical questions,
contact
powertron@vishaypg.com
www.powertron.de
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Vishay Precision Group, Inc.
Disclaimer
ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.
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any other disclosure relating to any product.
The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but
not limited to, the warranty expressed therein.
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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
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responsibility to validate that a particular product with the properties described in the product specification is suitable for
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Copyright Vishay Precision Group, Inc., 2014. All rights reserved.
Document No.: 63999
Revision: 15-Jul-2014
www.vpgsensors.com
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