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Datasheet> All Categories > Passive components> The resistor> UAL-2539.7OHM0.02%
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UAL-2539.7OHM0.02%

Description
Fixed Resistor, Wire Wound, 12W, 39.7ohm, 0.02% +/-Tol, -20,20ppm/Cel,
CategoryPassive components    The resistor   
File Size454KB，5 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Environmental Compliance
Download Datasheet Parametric View All

UAL-2539.7OHM0.02% Overview

Fixed Resistor, Wire Wound, 12W, 39.7ohm, 0.02% +/-Tol, -20,20ppm/Cel,

UAL-2539.7OHM0.02% Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid857453286
Reach Compliance Codecompliant
Country Of OriginIsrael
ECCN codeEAR99
YTEOL10
structureAll-Welded
Number of terminals2
Maximum operating temperature275 °C
Minimum operating temperature-55 °C
Package height14.2 mm
Package length47.5 mm
Package formChassis Mount
Package width27.4 mm
Rated power dissipation(P)12 W
resistance39.7 Ω
Resistor typeFIXED RESISTOR
seriesUAL
technologyWIRE WOUND
Temperature Coefficient20 ppm/°C
Tolerance0.02%

UAL-2539.7OHM0.02% Preview

UAL Series
FEATURES
•
•
•
•
•
•
•
Power Rating 5 to 300Watts
All Welded Construction
Resistances from 0.005 to 250kOhms
Tolerance to ±0.01%
High Overload and Pulse Handling
Low TCR: ± 20ppm/K Standard
Four Terminal Versions 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
UAL 5,10:
UAL 25:
UAL 50:
UAL 100,300:
1500 VAC
2500 VAC
3500 VAC
5500 VAC
Temperature Range
Dielectric Strength
Constuction
Centerless ground ceramic core
Tinned copper or copperweld leads
High-temperature epoxy molding Compound
Anodized aluminum housing
All welded terminations
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
ORDERING INFORMATION
Part Number - Resistance - Tolerance - TCR ( If not standard )
UAL-25 10 Ohm 1%
For Non-Inductive Windings / insert the letter “N” ( i.e. UALN-25 )
Document No.: 64325
Revision: 31-01-2015
For technical questions,
contact
powertron@vpgsensors.com
www.powertron.de
1
UAL Series
TABLE 1—SPECIFICATIONS (continued)
Type
UAL-5
UAL-10
UAL-25
UAL-50
UAL-100
UAL-180
UAL-250
UAL-300
MIL-R-39009
MIL-R-18546
Style
Power Rating ( W @ 25°C )
Commercial
7.5
a
12.5
a
25
b
50
c
100
d
180
d
250
d
300
e
1
a
b
c
d
e
MIL
5
a
10
a
20
b
30
c
75
d
-
120
d
-
Free Air
4.5
7.5
12
20
40
-
100
75
Resistance
Range
1
0.01 to 22K
0.01 to 47K
0.01 to 90K
0.01 to 250K
0.01 to 50K
0.01 to 50K
0.01 to 50K
0.005 to 100K
RER-60 / RE-60
RER-65 / RE-65
RER-70 / RE-70
RER-75 / RE-75
RER-77 / RE-77
-
RER-80 / RE-80
-
For non-inductive windings, divide maximum resistance by 2
Heatsink Required : 0.040 [1.0] Alum. Plate, 129 in
2
[832 cm
2
] or equiv.
Heatsink Required : 0.040 [1.0] Alum. Plate, 167 in
2
[1077 cm
2
] or equiv.
Heatsink Required : 0.059 [1.5] Alum. Plate, 291 in
2
[1877 cm
2
] or equiv.
Heatsink Required : 0.125 [3.2] Alum. Plate, 294 in
2
[1896 cm
2
] or equiv.
Heatsink Required : 0.125 [3.2] Alum. Plate, 895 in
2
[5780 cm
2
] or equiv.
FIGURE 1—DERATING
120
100
Mo
u
nte
80
do
nH
Power ( % )
ea
60
A
B
tsi
n
k
Free-air Derating
A : UAL-5, UAL-10
B : UAL-25
C : UAL-50, UAL-100, UAL-250
D : UAL-300
40
C
D
20
0
0
50
100
150
200
250
300
350
Ambient Temperature (°C)
www.powertron.de
2
For technical questions,
contact
powertron@vpgsensors.com
Document No.: 64325
Revision: 31-01-2015
UAL Series
FIGURE 2—DIMENSIONS
Type
UAL-5
UAL-10
UAL-25
UAL-50
±0.005
[±0.13]
0.444
[11.3]
0.562
[14.3]
0.719
[18.3]
1.563
[39.7]
A
±0.005
[±0.13]
0.490
[12.4]
0.625
[15.9]
0.781
[19.8]
0.844
[21.4]
B
±0.031
[±0.8]
0.600
[15.2]
0.750
[19.1]
1.870
[47.5]
1.968
[50.0]
C
±0.062
[±1.6]
1.125
[28.5]
1.375
[35.0]
1.938
[49.2]
2.781
[70.6]
D
±0.015
[±0.4]
0.334
[8.5]
0.430
[10.9]
0.530
[13.5]
0.615
[15.6]
E
±0.015
[±0.4]
0.646
[16.4]
0.800
[20.3]
1.080
[27.4]
1.140
[29.0]
F
±0.015
[±0.4]
0.320
[8.1]
0.400
[10.2]
0.560
[14.2]
0.615
[15.6]
G
±0.010
[±0.25]
0.065
[1.7]
0.075
[1.9]
0.085
[2.2]
0.085
[2.2]
H
±0.010
[±0.25]
0.140
[3.6]
0.190
[4.8]
0.260
[6.6]
0.300
[7.6]
J
±0.010
[±0.25]
0.078
[2.0]
0.093
[2.4]
0.172
[4.4]
0.196
[5.0]
K
±0.005
[±0.13]
0.093
[2.4]
0.093
[2.4]
0.125
[3.2]
0.125
[3.2]
L
±0.015
[±0.4]
0.078
[2.0]
0.102
[2.6]
0.125
[3.2]
0.125
[3.2]
M
±0.005
[±0.13]
0.050
[1.3]
0.080
[2.0]
0.086
[2.2]
0.086
[2.2]
N
±0.062
[±1.6]
0.266
[6.8]
0.312
[7.9]
0.438
[11.1]
0.438
[11.1]
O
±0.031
[±0.8]
0.245
[6.2]
0.312
[7.9]
0.391
[9.9]
0.422
[10.7]
P
±0.002
[±0.05]
0.051
[1.30]
0.098
[2.49]
0.098
[2.49]
0.098
[2.49]
Q
±0.031
[±0.8]
0.085
[2.2]
0.160
[4.0]
0.185
[4.7]
0.185
[4.7]
R
Type
UAL-
100
UAL-
180
UAL-
250
±0.005
[±0.13]
2.750
[69.9]
2.750
[69.9]
3.875
[98.4]
A
±0.005
[±0.13]
-
Aa
±0.005
[±0.13]
2.250
[57.2]
2.500
[63.5]
2.500
[63.5]
B
±0.031
[±0.8]
3.500
[88.9]
3.500
[88.9]
4.500
[114]
C
±0.062
[±1.6]
5.480
[139]
5.480
[139]
7.000
[178]
D
±0.015
[±0.4]
1.800
[45.7]
2.125
[54.0]
2.125
[54.0]
E
±0.015
[±0.4]
2.810
[71.4]
3.000
[76.2]
3.00
[76.2]
F
±0.015
[±0.4]
1.750
[44.5]
2.190
[55.6]
2.190
[55.6]
G
±0.010
[±0.25]
0.188
[4.8]
0.250
[6.4]
0.250
[6.4]
H
±0.015
[±0.4]
0.800
[20.3]
0.950
[24.1]
1.000
[25.4]
J
±0.015
[±0.4]
0.375
[9.5]
0.375
[9.5]
0.312
[7.9]
K
±0.005
[±0.13]
0.188
[4.8]
0.188
[4.8]
0.188
[4.8]
L
±0.015
[±0.4]
0.225
[5.7]
0.200
[5.1]
0.200
[5.1]
M
N
±0.015
[±0.4]
-
P
Mtg.
Screw
12-24
(2) #8
-
12-24
-
(2) #8
3.000
[76.2]
1/4-20
1.188
[30.7]
(4) #8
Document No.: 64325
Revision: 31-01-2015
For technical questions,
contact
powertron@vpgsensors.com
www.powertron.de
3
UAL Series
FIGURE 2—DIMENSIONS (continued)
Type
UAL-300
MAX
A
MAX
B
MAX
C
MAX
D
MAX
E
±0.010
[±0.3]
F
±0.010
[±0.3]
G
MAX
H
MAX
J
MAX
K
±0.010
[±0.3]
L
MAX
M
±0.010
[±0.3]
N
2.854
[72.5]
7.260
[184.4]
1.646
[41.8]
1.791
[45.5]
5.028
[127.7]
4.094
[104.0]
2.323
[59.0]
0.807
[20.5]
0.488
[12.4]
0.217
[5.5]
0.260
[6.6]
5.567
[141.4]
2.047
[52.0]
www.powertron.de
4
For technical questions,
contact
powertron@vpgsensors.com
Document No.: 64325
Revision: 31-01-2015
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
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