Document Number: 63017

For any questions, contact: foil@vishay.com

www.vishay.com

Revision: 16-Jul-07

1

200 Series

Vishay Foil Resistors

Precision Current Sensing Resistors

with TCR of 5 ppm/°C and values down to 5 m

Ω

Any value available within resistance range

The VCS200 Series offers resistance values as low as 5 m

Ω

and TCR’s as low as 5 ppm/°C with excellent long term

stability. The resistors are conformally coated. The 4 terminal

current sensing resistors can sustain 2 W continuously

without an appreciable change in resistance (0.5 %

maximum). The typical 50 % derating of the power

specification associated with other technologies is not

necessary.

Our Application Engineering Department is available to

advise and to make recommendations. For non-standard

technical requirements and special applications, please

contact us.

FEATURES

• Temperature Coefficient of Resistance (TCR):

± 5 ppm/°C (0 to 60 °C) (see table 1)

• Tolerance: to ± 0.02 % (see table 1)

• Power Rating: 2 W at 25 °C

• Load Life Stability: ± 0.005 % at 25 °C,

2000 hours at Rated Power

• Resistance Range: 0.005 Ω to 500 Ω

• Electrostatic Discharge (ESD) above 25 000 V

• Non Inductive, Non Capacitive Design

• Rise Time: 1.0 ns without ringing

• Current Noise: < - 40 dB

• Thermal EMF: 0.05 µV/°C typical

• Voltage Coefficient: < 0.1 ppm/V

• Non Inductive: 0.08 µH

• Non Hot Spot Design

• Terminal Finishes Available:

Lead (Pb)-free

Tin/Lead Alloy

• Any value available within resistance range (e.g. 1K234)

• Prototype samples available from 48 hours. For more

information, please contact foil@vishay.com

• For better performances, please see VCS300 series

datasheet

* Pb containing terminations are not RoHS compliant, exemptions may apply

Available

Pb-free

RoHS*

COMPLIANT

FIGURE 1 - DIMENSIONS AND SCHEMATIC in inches (millimeters)

Models VCS201, VCS202 and VCS232

MODEL

L

(Maximum)

H

(Maximum)

W

(Maximum)

LL

(Minimum)

LS

± 0.020 (± 0.51)

LT

± 0.020 (± 0.51)

(Nominal)

(Nominal)

VCS201

1.060 (26.92)

0.374 (9.50)

0.177 (4.50)

0.500 (12.7)

0.530 (13.46)

0.925 (23.5)

0.032 (0.81)

0.025 (0.64)

VCS202,

VCS232

1.240 (31.5)

0.512 (13.0)

0.177 (4.50)

0.500 (12.7)

0.689 (17.5)

1.083 (27.51)

0.040 (1.02)

0.032 (0.81)

LT

H

L

W

LL

D

1

LS

D

2

Solder coated

copper leads

R

V

I

I

TABLE 1 - CHARACTERISTICS

MODEL NUMBER

RESISTANCE

RANGE

TIGHTEST RESISTANCE

TOLERANCE %

TCR (ppm/°C)

0 °C to + 60 °C

MAXIMUM

CURRENT - Amp

POWER RATING

at + 25 °C

VCS201 & VCS202

0.005

Ω to 0.01 Ω

± 1

± 30

10

1.5 W

> 0.01

Ω to 0.05 Ω

± 0.5

± 25

> 0.05

Ω to 0.2 Ω

± 0.1

± 15

15

2 W

VCS232

0.2

Ω to 1.0 Ω

± 0.05

± 15

3

2 W

> 1

Ω to 10 Ω

± 0.05

± 5

> 10

Ω to 500 Ω

± 0.02

± 5