Document Number: 63137

For any questions, contact: foil@vishay.com

www.vishay.com

Revision: 23-Jul-08

1

VCS1610 (Kelvin Connection)

Vishay Foil Resistors

High Precision Foil Surface Mount Current Sensing Chip

Resistors with TCR of ± 2 ppm/°C, Load Life Stability of ± 0.02 %,

ESD Immunity up to 25 kV and Fast Thermal Stabilization

Any value at any tolerance available within resistance range

INTRODUCTION

Model VCS1610 is a surface mount resistor designed with

Foil as the resistance element, it provides performance

capabilities far greater than other resistor technologies can

supply in a product of comparable size. Low TCR removes

errors due to temperature gradients.

The VCS1610 has improved load life stability of ± 0.02 % at

+ 70 °C for 2000 h at rated power. Other technologies of

current sensing resistors offer a load life stability of

≥ 0.5 %

through a 1000 h workload.

This small device dissipates heat almost entirely through the

pads so surface mount users are encouraged to be

generous

with

the

board’s

pads

and

traces.

Gold

terminations are available on special order.

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):

± 2.0 ppm/°C typical (- 55 °C to + 125 °C,

+ 25 °C ref.) (see table 1)

• Tolerance: to ± 0.5 %

• Load life stability:

± 0.02 % at 70 °C, 2000 h at rated power

• Power rating: 0.25 W at + 70 °C

• Electrostatic discharge (ESD) above 25 000 V

• Fast

thermal

stabilization

due

to

proprietary

processing technique

• Short time overload ≤ 0.005 %

• Ohmic values: 0.2 Ω to 0.5 Ω (for higher or lower values

please contact us)

• Non inductive, non capacitive design

• Thermal EMF: 0.05 µV/°C typical

• Current noise: < - 42 dB

• Rise time: 1 ns without ringing

• Voltage coefficient: < 0.1 ppm/V

• Non inductive: < 0.08 µH

• Weight: 0.027 mg

TERMINATIONS

• Two lead (Pb)-free options are available:

Gold plated or tin plated

APPLICATIONS

• Airborne (in heads-up display systems)

• High precision instrumentation

• Electron beam recording equipment

• Electron microscopes

• Current sensing applications

• Force balance electronic scales

• Military

Note

• Tighter tolerances and higher values are available. Please contact application engineering foil@vishay.com

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

FIGURE 1 - POWER DERATING CURVE

100

75

50

25

0

- 75

- 50

- 25

0

+ 25

+ 50

+ 75 + 100 + 125 + 150 + 175

Ambient Temperature (°C)

+ 70 °C

- 55 °C

Available

Pb-free

RoHS*

COMPLIANT

I

1

E

1

E

2

Electrical

Schematic

R

TABLE 1 - TOLERANCE AND TCR VS. RESISTANCE VALUE (- 55 °C to + 125 °C, + 25° Ref.)

VALUE (

Ω)

TOLERANCE

TYPICAL TCR

MAXIMUM TCR

0R200 to 0R500

0.5 %, 1 %

± 2 ppm/°C

± 15 ppm/°C