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Datasheet> All Categories > Passive components> The resistor> USR2-T22035.2OHMSC0.25%3PPM
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USR2-T22035.2OHMSC0.25%3PPM

Description
Fixed Resistor, Metal Foil, 1.5W, 35.2ohm, 0.25% +/-Tol, -3,3ppm/Cel, 4016,
CategoryPassive components    The resistor   
File Size337KB，4 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Environmental Compliance
Download Datasheet Parametric View All

USR2-T22035.2OHMSC0.25%3PPM Overview

Fixed Resistor, Metal Foil, 1.5W, 35.2ohm, 0.25% +/-Tol, -3,3ppm/Cel, 4016,

USR2-T22035.2OHMSC0.25%3PPM Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid286327339
Reach Compliance Codecompliant
ECCN codeEAR99
structureRectangular
Lead length11.8 mm
lead spacing5.08 mm
Number of terminals2
Maximum operating temperature155 °C
Minimum operating temperature-55 °C
Package height17.3 mm
Package length10.16 mm
Package shapeRECTANGULAR PACKAGE
Package formRadial
Package width4 mm
Rated power dissipation(P)1.5 W
resistance35.2 Ω
Resistor typeFIXED RESISTOR
seriesUSR2-T220
size code4016
technologyMETAL FOIL
Temperature Coefficient-3,3 ppm/°C
Tolerance0.25%

USR2-T22035.2OHMSC0.25%3PPM Preview

USR UNR 2-T220 T221
Powertron
FEATURES
•
•
•
•
•
•
Resistances from 0.5Ohm to 150kOhms
Power Rating to 10Watt
Resistance Tolerances to ±0.01%
TCR to ±3ppm/K
Load Stability to 0.01%
TO-220 Housing
TABLE 1—SPECIFICATIONS
TYPE
Resistance Range
Free air 70°C
R < 50R0
R > 50R0
With heatsink
R < 50R0
R > 50R0
USR 2-T220
USR 2-T221
0.5 Ohms to 150 kOhms
1.5W
1.0W
10W
6W
UNR 2-T220
UNR 2-T221
0.5 Ohms to 5 kOhms
1.5W
1.0W
15W
10W
Power Rating
Tolerances
from 0.5 Ohms
from 10.0 Ohms
from 25.0 Ohms
from 50.0 Ohms
Thermal Resistance Rthj-c
R<50R0
R>50R0
Stability (1000h)
Shelf Lifw Stability
Temperature Coefficient
Voltage Proof
Thermal EMF
Operating Temperature Range
Resistor Material
Substrate
Housing
Connector Material
Terminals
Max. Torque
Notes
0.1% / 0.25% / 0.5% / 1%
0.05% / 0.1% / 0.25% / 0.5% / 1%
0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1%
0.01% / 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1%
10.8 K/W
18.8 K/W
0.01%
25ppm / ∆R after 1 year
50ppm / ∆R after 3 year
max. ±5ppm/K (-55 to 155°C)
typ. ±3ppm/K (-55 to 125°C)
1 kVDC
< 0.1µV/K
-55 to 155°C
NiCr-Foil
Al
2
O
3
Cu / tinned
2
1.0 Nm
Specially designed for ap-
plications with fast changing
electrical load
AlN
Epoxy + Cu heatsink nickel plated
6.8 K/W
10.8 K/W
ORDERING INFORMATION
Part Number - Resistance - Contact - Tolerance - TCR
UNR 2-T220B 4.7kOhms C 0.5% 3ppm
Document No.: 64222
Revision: 24-04-2013
For technical questions,
contact
powertron@vishaypg.com
www.powertron.de
1
USR UNR 2-T220 T221
Powertron
FIGURE 1—TEMPERATURE COEFFICIENT
200
100
0
∆R/R
(ppm)
-100
-200
-300
-400
-500
-600
-700
-75
-50
-25
0
25
50
Temperature (°C)
75
100
125
Nominal Spread
±2.3ppm/K
150
Nominal
∆R/R
Nominal Spread
±2.3ppm/K
FIGURE 2—DERATING
Power Rating Notes -
Power (% from
nominal power)
120
100
80
60
40
20
0
25
50
85
100
115
130
145
155
The U-Series Resistors must be attached to a suitable heat-
sink. The maximum internal resistor temperature is 155°C.
To specify an appropriate heatsink use the following formula :
R
qH
= T
MAX
- ( P x R
qR
) - T
A
P
Where:
R
qH
= Thermal Resistance of Heatsink ( K/W )
R
qR
= Thermal Resistance of Resistor ( K/W )
T
MAX
= Maximum Temperature of Resistor
T
A
= Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
Temperature of the backplate(°C)
www.powertron.de
2
For technical questions,
contact
powertron@vishaypg.com
Document No.: 64222
Revision: 24-04-2013
USR UNR 2-T220 T221
Powertron
FIGURE 3—DIMENSIONS
in mm (inches)
USR 2-T220 / UNR 2-T220
Dimension
A
±0.2 (±0.008)
B
±0.2 (±0.008)
C
±0.1 (±0.004)
D
±0.1 (±0.004)
E
±0.2 (±0.008)
F
±0.1 (±0.004)
G
±0.1 (±0.004)
H
±0.1 (±0.004)
I
±0.2 (±0.008)
J
±0.1 (±0.004)
K
±0.1 (±0.004)
L
±0.1 (±0.004)
M
±0.1 (±0.004)
N
±0.1 (±0.004)
O
±0.1 (±0.004)
Standard
contact
C-contact
17.30 (0.68)
10.16 (0.40)
6.00 (0.24)
Ø3.7 (Ø0.146)
16.40 (0.65)
5.08 (0.20)
0.76 (0.03)
1.30 (0.05)
10.00 (0.39) 13.80 (0.54)
2.00 (0.08)
1.20 (0.05)
4.00 (0.16)
2.90 (0.11)
0.40 (0.02)
1.85 (0.07)
USR 2-T221 / UNR 2-T221
Dimension
A
±0.2 (±0.008)
B
±0.2 (±0.008)
C
±0.1 (±0.004)
D
±0.1 (±0.004)
E
±0.2 (±0.008)
F
±0.1 (±0.004)
G
±0.1 (±0.004)
H
±0.1 (±0.004)
I
±0.2 (±0.008)
J
±0.1 (±0.004)
K
±0.1 (±0.004)
L
±0.1 (±0.004)
M
±0.1 (±0.004)
N
±0.1 (±0.004)
O
±0.1 (±0.004)
Standard
contact
C-contact
18.30 (0.72)
10.16 (0.40)
3.70 (0.15)
Ø3.2 (Ø0.126)
16.40 (0.65)
5.08 (0.20)
0.76 (0.03)
1.30 (0.05)
10.00 (0.39) 13.80 (0.54)
2.00 (0.08)
1.20 (0.05)
4.00 (0.16)
3.90 (0.15)
0.40 (0.02)
1.85 (0.07)
Document No.: 64222
Revision: 24-04-2013
For technical questions,
contact
powertron@vishaypg.com
www.powertron.de
3
Legal Disclaimer Notice
Vishay Precision Group
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, “Vishay Precision Group”), 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 Vishay Precision Group’s terms and
conditions of purchase, including but not limited to, the warranty expressed therein.
Vishay Precision Group 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, Vishay Precision
Group 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 Vishay Precision Group’s knowledge of typical requirements that
are often placed on Vishay Precision Group 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.
No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or
by any conduct of Vishay Precision Group.
The products shown herein are not designed for use in life-saving or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay Precision Group products not expressly
indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay
Precision Group for any damages arising or resulting from such use or sale. Please contact authorized
Vishay Precision Group 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.
Document No.: 63999
Revision: 27-Apr-2011
www.vishaypg.com
1
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