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

www.vishay.com

For any questions, contact: foil@vishay.com

Document Number: 63137

2

Revision: 23-Jul-08

Note

* Measurement error 0.001 R

FIGURE 2 - DIMENSIONS in inches (millimeters)

INCHES

MILLIMETERS

L

0.160 ± 0.010

4.06 ± 0.25

H

0.100 ± 0.010

2.54 ± 0.25

W

0.040 maximum

1.02 maximum

A

0.045 ± 0.005

1.14 ± 0.13

B

0.030 ± 0.010

0.76 ± 0.25

W

Solder Pad Layout

L

H

Top View

0.260

(6.60)

0.070

(1.78)

A

B

Bottom View

Mounting

Pads (4)

FIGURE 3 - TRIMMING TO VALUES

(Conceptual Illustration)

Mutual Inductance

Reduction due

to Opposing

Current in

Adjacent Lines

Current Path

Before Trimming

Note: Foil shown in black, etched spaces in white

Interloop Capacitance

Reduction in Series

Trimming Process

Removes this Material

from Shorting Strip Area

Changing Current Path

and Increasing

Resistance

Current Path

After Trimming

FIGURE 4 - TYPICAL TCR CURVE

+ 75

+ 150

+ 100

+ 50

0

- 50

- 100

- 150

- 200

Ambient Temperature (°C)

R

(ppm)

± 2 ppm/°C (+ 25 °C Reference)

+ 100

+ 125

- 25

0+ 25

+ 50

- 50

TABLE 2 - PERFORMANCE SPECIFICATIONS

TEST

MIL-PRF-55342

ΔR LIMITS

TYPICAL

ΔR LIMITS

Thermal Shock 5 x (- 65 °C to + 150 °C)

± 0.10 %

± 0.005 % (50 ppm)

Low Temperature Operation

± 0.10 %

± 0.005 % (50 ppm)

Short Time Overload

± 0.10 %

± 0.005 % (50 ppm)

High Temperature Exposure

± 0.10 %

± 0.01 % (100 ppm)

Resistance to Soldering Heat

± 0.2 %

± 0.01 % (100 ppm)

Moisture Resistance

± 0.2 %

± 0.01 % (100 ppm)

Load Life 2000 h at 70 °C

± 0.5 %

± 0.02 % (200 ppm)