VCS232Z (Z-Foil)

with Absolute TCR of ± 0.05 ppm/°C, PCR of 5 ppm at

Rated Power and Tolerance of ± 0.02 %

www.vishay.com

For any questions, contact: foil@vishay.com

Document Number: 63095

2

Revision: 16-Apr-07

Note

1. Measurement error 0.0005R

FIGURE 2 - TRIMMING TO VALUES

(Conceptual Illustration)

Mutual Inductance

Reduction due

to Change in

Current Direction

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 3 -TYPICAL TCR CURVE Z-FOIL

(For more details, see table 1)

+ 500

+ 200

+ 100

0

- 100

- 200

- 300

- 500

- 55

- 25

+ 25

+ 60

+ 75

+ 100

+ 125

Ambient Temperature (°C)

ΔR

R

(ppm)

0

0.05 ppm/°C

- 0.1 ppm/°C

0.1 ppm/°C

0.14 ppm/°C

0.2 ppm/°C

- 0.16 ppm/°C

- 400

+ 300

+ 400

FIGURE 4 - DIMENSIONS in inches (millimeters)

MODEL

L

MAXIMUM

H

MAXIMUM

W

MAXIMUM

LL

MINIMUM

LS

± 0.20 (± 0.5)

LT

± 0.20 (± 0.5)

NOMINAL

NOMINAL

VCS232Z

1.240 (31.50)

0.512 (13.00)

0.177 (4.50)

0.500 (12.70)

0.688 (17.48)

1.083 (27.51)

0.040 (1.02)

0.032 (0.81)

TEST OR CONDITION

TYPICAL

ΔR

MAXIMUM

ΔR

Low temperature storage

(24 hours at - 55 °C)

± 0.002 % (20 ppm)

± 0.005 % (50 ppm)

Short time overload

(5 x rated power)

± 0.002 % (20 ppm)

± 0.005 % (50 ppm)

DWV

± 0.002 % (20 ppm)

± 0.005 % (50 ppm)

Moisture resistance

(+ 65 °C to - 10 °C; 90 % to 98 % RH; 0.1 x rated power; 240 hours)

± 0.01 % (100 ppm)

± 0.02 % (200 ppm)

Terminal Strength

± 0.002 % (20 ppm)

± 0.005 % (50 ppm)

Load life stability

(2 Watt, + 25 °C, 2000 hours)

± 0.005 % (50 ppm)

± 0.01 % (100 ppm)

High temperature exposure

(2000 hours at + 150 °C)

± 0.01 % (100 ppm)

± 0.02 % (200 ppm)

Weight

1.2 g maximum

LT

H

L

W

LL

D

1

LS

D

2

Tin/Lead or Lead (Pb)-free

Solder coated

copper leads