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CSM3637P0R0475CSW

Description
Fixed Resistor, Metal Foil, 4W, 0.0475ohm, 0.25% +/-Tol, -15,15ppm/Cel, 3637
CategoryPassive components    The resistor   
File Size1MB,6 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Environmental Compliance  
Download Datasheet Parametric View All

CSM3637P0R0475CSW Overview

Fixed Resistor, Metal Foil, 4W, 0.0475ohm, 0.25% +/-Tol, -15,15ppm/Cel, 3637

CSM3637P0R0475CSW Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Objectid1182084333
package instructionSMT, 3637
Reach Compliance Codecompliant
Country Of OriginIsrael
ECCN codeEAR99
YTEOL10
structureRectangular
Manufacturer's serial numberCSM3637P
Number of terminals2
Maximum operating temperature170 °C
Minimum operating temperature-65 °C
Package height1.524 mm
Package length9.144 mm
Package shapeRECTANGULAR PACKAGE
Package formSMT
Package width9.398 mm
method of packingWaffle Pack
Rated power dissipation(P)4 W
GuidelineMIL-PRF-49465
resistance0.0475 Ω
Resistor typeFIXED RESISTOR
size code3637
technologyMETAL FOIL
Temperature Coefficient15 ppm/°C
Tolerance0.25%
CSM3637P
Ultra High Precision, Surface Mount 4-Terminal Precision Resistor with
Increased Power to 5W (40A max), Resistance Values from
3 mto 100 m, and TCR to ± 15 ppm/°C
FEATURES
Resistance range: 3 m to 100 m
Temperature coefficient of resistance (TCR):
3 mto 100m : 15 ppm/°C maximum
Load life stability: ± 0.2 % (70 °C, 2000 h at rated
power)
INTRODUCTION
The CSM3637P is a low value current sense resistor,
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.
There are many current sense resistors on the market. Until
now the combination of very stable and precise resistors
with low TCR of ± 15 ppm/°C maximum, tight tolerance of
± 0.1 % and load life stability of ± 0.2 % (2000 h, + 70 °C at
rated power) was not easily available.
The key performance of the new CSM3637P is its high rated
power up to 5W. This option became available due to a
special design which consists of a heat sink on the top of the
resistive element, thus allowing a better heat dissipation.
These specifications are based on tests performed in
accordance with methods prescribed by appropriate
MIL-PRF standards (MIL-PRF-55342 and MIL-PRF-49465).
The four terminal device separates 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.
In addition, a key feature of the CSM3637P is its low thermal
EMF design (very important for low ohmic value DC
applications). The welded terminals make intimate contact
with the chip thereby minimizing temperature differentials.
Our application engineering department is available to
advise and make recommendations.
For non-standard technical requirements and special
applications, please contact:
foil@vpgsensors.com
Power rating: to 5 W (see Table 1)
Resistance tolerance: to ± 0.1 %
Vishay Foil Resistors (VFR) are not restricted to standard
values; specific “as required” values can be supplied at no
extra cost or delivery (e.g. 10.2345 m vs. 10 m)
Short time overload: ± 0.2 % typical
Proprietary processing technique produces extremely low
resistance values with improved stability
All welded construction
Solderable terminations
Very low inductance 0.5 nH
Excellent frequency response to 50 MHz
Low thermal EMF < 3 µV/°C (DC offset error, significant for
low values)
Maximum current: up to 40 A
Four terminal (Kelvin) design: allows for precise and
accurate measurements
Terminal finishes available: lead (Pb)-free, tin/lead alloy
Prototype quantities available in just 5 working days
or sooner. For more information, please contact
foil@vpgsensors.com
For better performances, please contact us
FIGURE 1 - POWER DERATING CURVE
+ 70 °C
100
Rated Power (%)
B
I
A
Z
in
R
C
I
D
80
60
40
20
0
- 65 - 50
- 25
0
25
50
75
100
125
150
170
Ambient Temperature (°C)
~
=
For any questions, contact
foil@vpgsensors.com
www.vishayfoilresistors.com
1
V
* This datasheet provides information about parts that are RoHS-compliant and/or parts that are non-RoHS-compliant. For example, parts with
lead (Pb) terminations are not RoHS-compliant. Please see the information/tables in this datasheet for details.
Document Number: 63210
Revision: 13-Oct-15
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