CSM3637S Vishay, CSM3637S Datasheet

CSM3637S

Manufacturer Part Number

CSM3637S

Description

Bulk Metal Foil Technology High Precision, Current Sensing, Power Surface Mount, Metal Strip Resistor With Improved Stability 0.05 %, Resistance Value From 10 M?, Rated Power To 2 W And Tcr To 0 ? 20 Ppm/?c

Manufacturer

Vishay

Datasheet

1.CSM3637S.pdf (4 pages)

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Resistance Value from 10 mΩ, Rated Power to 2 W and TCR to 0 ± 20 ppm/°C

INTRODUCTION

The CSM3637S 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

terminations.

There are many current sense resistors on the market, until

now the combination of very stable and precise resistors

with low TCR as much as 0 ppm/°C ± 20 ppm/°C, tight

tolerance of ± 0.1 % and excellent load life stability of

± 0.05 % (2000 h, + 70 °C at rated power) were not easily

available.

The key performance of the new CSM3637S is stability,

which is the ability of this resistor to maintain its value with

time

conditions.

These specifications are based on tests performed in

accordance with methods prescribed by appropriate

MIL-PRF standards.

The four terminal device separates the current leads from

the voltage drop sensing leads. This configuration

eliminates the effect of the lead wire resistance from points

A to B and C to D.

A key feature of the CSM3637S is its low thermal EMF

design. The welded terminals make intimate contact with

the chip thereby minimizing temperature variations.

Our application engineering department is available to

advise and make recommendations.

For non-standard technical requirements and special

applications, please contact:

* Pb containing terminations are RoHS compliant, exemptions may apply

Document Number: 63168

Revision: 24-Jun-09

Bulk Metal

Surface Mount, Metal Strip Resistor with Improved Stability 0.05 %,

under

nominal

resistive element with plated copper

load

Foil Technology High Precision, Current Sensing, Power

foil@vishay.com

at various

For any questions, contact:

environmental

FEATURES

• Temperature coefficient of resistance (TCR):

• Load life stability to ± 0.05 % (70 °C, 2000 h

• Power rating: 2 W

• Tolerance: ± 0.2 %

• Resistance range: 10 mΩ to 100 mΩ

• Vishay Foil resistors are not restricted to standard values;

• Short time overload: ± 0.1 % typical

• Proprietary processing technique produces extremely low

• All welded construction

• Solderable terminations

• Very low inductance 0.5 nH to 5 nH

• Excellent frequency response to 50 MHz

• Low thermal EMF (< 3 µV/°C)

• Maximum current: up to 14 A

• Four terminal (Kelvin) design: allows for precision accurate

• Terminal finish: lead (Pb)-free or tin/lead alloy

• Compliant to RoHS directive 2002/95/EC

• Prototype quantities available in just 5 working days

• Screening in accordance with EEE-INST002 available

• For better performances please contact us

foil@vishay.com

FIGURE 1 - POWER DERATING CURVE

(- 55 °C to + 125 °C, + 25 °C ref.)

± 20 ppm/°C maximum

at rated power)

specific “as required” values can be supplied at no extra

cost or delivery (e.g. 10.2345 mΩ vs. 10 mΩ)

resistance values with improved stability

measurements

or sooner. For more information, please contact

foil@vishay.com

(MIL-PRF-55342 and MIL-PRF-49465)

100

- 65 - 50

- 25

Ambient Temperature (°C)

Vishay Foil Resistors

+ 70 °C

CSM3637S

100

www.vishay.com

125

150

170

Related parts for CSM3637S

CSM3637S Summary of contents

Page 1

... This configuration eliminates the effect of the lead wire resistance from points and key feature of the CSM3637S is its low thermal EMF design. The welded terminals make intimate contact with the chip thereby minimizing temperature variations. ...

Page 2

... LAND PATTERN DIMENSIONS - TOLERANCES ± 0.003 (± 0.076) RESISTANCE RANGE (mΩ 100 0.130 (3.30) Note (1) White dots indicate top side of part for mounting purposes TABLE 2 - CSM3637S PERFORMANCE SPECIFICATIONS TEST Thermal Shock Load Life Stability Bias Humidity Short Time Overload High Temperature Exposure Low Temperature Storage ...

Page 3

... FOR EXAMPLE: ABOVE GLOBAL ORDER Y1472 0R10000 TYPE: CSM3637S VALUE: 100.0 mΩ ABSOLUTE TOLERANCE: ± 0.2 % TERMINATION: standard tin/lead PACKAGING: tape and reel HISTORICAL PART NUMBER: CSM3637S 0R1000 (will continue to be used) CSM3637S 0R1000 MODEL OHMIC VALUE 0R1000 = 0.100 Ω ...

Page 4

... Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’ ...

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