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303144-R0298-D-B-T

Description
Fixed Resistor, Metal Foil, 1W, 0.0298ohm, 0.5% +/-Tol, 20ppm/Cel, Surface Mount, 2512, CHIP
CategoryPassive components    The resistor   
File Size282KB,5 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Download Datasheet Parametric View All

303144-R0298-D-B-T Overview

Fixed Resistor, Metal Foil, 1W, 0.0298ohm, 0.5% +/-Tol, 20ppm/Cel, Surface Mount, 2512, CHIP

303144-R0298-D-B-T Parametric

Parameter NameAttribute value
Objectid145059015727
package instructionCHIP
Reach Compliance Codeunknown
Country Of OriginIsrael
ECCN codeEAR99
YTEOL10
Other featuresPRECISION
structureRectangular
Installation featuresSURFACE MOUNT
Number of terminals2
Maximum operating temperature170 °C
Package height0.635 mm
Package length6.35 mm
Package formSMT
Package width3.175 mm
method of packingTR
Rated power dissipation(P)1 W
Rated temperature70 °C
resistance0.0298 Ω
Resistor typeFIXED RESISTOR
size code2512
surface mountYES
technologyMETAL FOIL
Temperature Coefficient20 ppm/°C
Terminal shapeWRAPAROUND
Tolerance0.5%
303144, 303145
Models 303144 and 303145
Resistors CSM2512 and CSM3637
Models 303144 and 303145 – Fixed Resistors CSM2512 and CSM3637
with Screen/Test Flow in Compliance with EEE-INST-002
(Tables 2A and 3A, Film/Foil, Level 1) MIL-PRF-55342 and MIL-PRF-49465
FEATURES
• Temperature coefficient: ±20 ppm/°C max.
(–55°C to +125°C, +25°C ref.) (see Table 1)
• Surface mount configuration
• Four terminal (Kelvin) design: allows for precision
accurate measurements
• Power rating: 1 W to 3 W
• Resistance tolerance: ±0.5%
• Resistance range: 2 mΩ to 200 mΩ
• Bulk Metal
®
Foil resistors are not restricted to standard
values; specific “as required” values can be supplied
at no extra cost or delivery (e.g., 2.345 mΩ vs. 2 mΩ)
• Short time overload: 0.2% typical
• Thermal EMF: 3 μV/°C
• Maximum current: up to 38 A
• Terminal finish: tin/lead alloy
• For prototype units, append a “U” to the model number
(example: 303144U). These units have all of the table
2A (page 3) 100% tests performed, with no destructive
qualification testing required (table 3A, page 3).
For more information, please contact:
foil@vpgsensors.com
• For oriented performances, please contact:
application engineering
B
I
A
Zin
~
=
V
R
C
I
D
INTRODUCTION
303144 and 303145 are low value current sense resistors,
providing power and precision in a four terminal, surface
mount configuration. Its all welded construction is made
up of a Bulk Metal
®
resistive element with plated copper
terminations.
The four terminal devices separate the current leads from
the voltage sensing leads. This configuration eliminates
the effect of the lead wire resistance from points A to B
and C to D.
Vishay Foil Resistors’ application engineering department
is available to advise and make recommendations.
Figure 1 – Power Derating Curve
Percent of Rated Power
100
80
60
40
20
0
- 65 - 50
- 25
0
25
50
75
100
125
150
170
+ 70 °C
Ambient Temperature (°C)
Table 1 – Specifications
PARAMETER
Resistance Range
Power Rating at 70°C
Maximum Current
Tightest Tolerance
Temperature Coefficient Max.
(–55°C to +125°C, +25°C ref.)
Weight (maximum)
±20 ppm/°C (3 mΩ to <100 mΩ)
±25 ppm/°C (100 mΩ to 200 mΩ)
0.09 g
303144
3 mΩ to 200 mΩ
1W
18 A
±0.5%
±25 ppm/°C (2 mΩ to ≤3 mΩ)
±25 ppm/°C (100 mΩ to 200 mΩ)
±20 ppm/°C (>3 mΩ to <100 mΩ)
0.29 g
303145
2 mΩ to 200 mΩ
3 W ( 2 mΩ to 10 mΩ)
2 W (>10 mΩ to 200 mΩ)
38 A
Document No.: 63166
Revision: 06-Jul-2017
For any questions, contact
foil@vpgsensors.com
www.vishayfoilresistors.com
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