UT Series
Powertron
FEATURES
•
•
•
•
•
•
•
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
1
UT Series
Powertron
TABLE 1—SPECIFICATIONS (continued)
Wattage Rating
( Watts )
U
UT-1
UT-1/2A
UT-1/2
UT-1A
UT-2
UT-2A
UT-2B
UT-2C
UT-2E
UT-3
UT-5
UT-5A
UT-6
UT-7A
3
UT-7B
UT-7C
UT-10
UT-15
1
Dimensions
Maximum
Ohms
2
A
±0.062”
[±1.6mm]
Type
B
±0.031”
[±0.8mm]
C
1
±0.002”
[±0.05mm]
0.018 [0.46]
0.020 [0.5]
0.025 [0.6]
0.020 [0.5]
0.025 [0.6]
0.020 [0.5]
0.025 [0.6]
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
0.040 [1.0]
0.032 [0.8]
0.032 [0.8]
0.040 [1.0]
0.032 [0.8]
0.040 [1.0]
0.032 [0.8]
0.040 [1.0]
0.040 [1.0]
0.040 [1.0]
0.040 [1.0]
0.040 [1.0]
0.048 [1.2]
V
0.25
0.5
0.9
1.5
2.0
3.0
3.75
4.0
3.5
5.5
6.5
6.5
6.5
9.0
9.0
9.0
13
-
500
2.5k
7.5k
10k
12.5k
22k
22k
40k
30k
45k
91k
65k
95k
150k
100k
154k
260k
320k
Maximum
Working
Voltage
MIL-R-26 /
MIL-R-39007
Style
0.1
0.4
0.75
1.0
1.5
2.5
3.0
3.0
3.0
4.0
5.0
5.0
5.0
7.0
7.0
7.0
10
15
0.150 [3.8]
0.250 [6.4]
0.330 [8.4]
0.406 [10.3]
0.350 [8.9]
0.500 [12.7]
0.560 [14.2]
0.500 [12.7]
0.500 [12.7]
0.67 [17.1]
0.875 [22.2]
0.970 [24.6]
1.000 [25.4]
1.375 [35.0]
1.400 [35.6]
1.220 [31.0]
1.780 [45.2]
1.810 [46.0]
0.078 [2.0]
0.078 [2.0]
0.078 [2.0]
0.094 [2.4]
0.156 [4.0]
0.187 [4.7]
0.187 [4.7]
0.250 [6.4]
0.200 [5.1]
0.270 [6.9]
0.312 [7.9]
0.250 [6.4]
0.312 [7.9]
0.375 [9.5]
0.312 [7.9]
0.312 [7.9]
0.375 [9.5]
0.510 [13.0]
8.5
20
29
52
60
130
140
140
140
210
360
390
504
650
590
620
850
1500
RW-78
RWR-78
RW-67
RW-74
RWR-74
RW-69
RW-79
RWR-79
RW-70
2
Lead Diameter: 18 AWG = 0.040” / 20 AWG = 0.032” / 22 AWG = 0.025” / 24 AWG = 0.020” / 25 AWG = 0.018”
Where more than one lead is listed / the top value is Standard
For non-inductive windings / divide maximum resistance by 2
www.powertron.de
2
For technical questions,
contact
powertron@vishaypg.com
Document No.: 64327
Revision: 23-05-2013
Legal Disclaimer Notice
Vishay Precision Group, Inc.
Disclaimer
ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.
Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in
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.
VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase.
To the maximum extent permitted by applicable law, VPG disclaims (i) any and all liability arising out of the
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
use in a particular application. You should ensure you have the current version of the relevant information by contacting
VPG prior to performing installation or use of the product, such as on our website at vpgsensors.com.
No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or by any
conduct of VPG.
The products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise
expressly indicated. Customers using or selling VPG products not expressly indicated for use in such applications do
so entirely at their own risk and agree to fully indemnify VPG for any damages arising or resulting from such use or sale.
Please contact authorized VPG personnel to obtain written terms and conditions regarding products designed for such
applications.
Product names and markings noted herein may be trademarks of their respective owners.
Copyright Vishay Precision Group, Inc., 2014. All rights reserved.
Document No.: 63999
Revision: 15-Jul-2014
www.vpgsensors.com
1
微控制器 MCU
