Document Number: 63106

For any questions, contact: foil@vishay.com

www.vishay.com

Revision: 28-Jun-07

3

VFCP Series (0805, 1206, 1506, 2010, 2512) (Z-Foil)

Ultra High Precision Z-Foil Flip Chip Resistor with TCR

of ± 0.05 ppm/°C, 35 % Space Saving versus

Wraparound Design and PCR of 5 ppm at Rated Power

Vishay Foil Resistors

Note

1. Land Pattern Dimensions are per IPC-782

Note

• The TCR values for < 100

Ω are influenced by the termination

composition and result in deviation from this curve

TABLE 6 - DIMENSIONS AND LAND PATTERN in inches (millimeters)

CHIP

SIZE

L

W

THICKNESS

D

± 0.005 (0.13)

± 0.005 (0.13)

MAXIMUM

± 0.005 (0.13)

MAXIMUM

MINIMUM

MAXIMUM

0805

0.079 (2.01)

0.049 (1.24)

0.025 (0.64)

0.010 (0.25)

0.078 (1.98)

0.053 (1.35)

0.049 (1.24)

1206

0.126 (3.20)

0.062 (1.57)

0.025 (0.64)

0.015 (0.38)

0.125 (3.18)

0.090 (2.29)

0.062 (1.57)

1506

0.150 (3.81)

0.062 (1.57)

0.025 (0.64)

0.012 (0.30)

0.150 (3.81)

0.120 (3.05)

0.062 (1.57)

2010

0.200 (5.08)

0.100 (2.54)

0.025 (0.64)

0.020 (0.51)

0.199 (5.05)

0.153 (3.89)

0.100 (2.54)

2512

0.250 (6.35)

0.126 (3.20)

0.025 (0.64)

0.024 (0.61)

0.250 (6.35)

0.196 (4.98)

0.126 (3.20)

D

W

L

L - 0.005 (0.13)

W1 [W - 0.003"]

Solder Terminals

BOTTOM VIEW (showing terminals for mounting)

LAND PATTERN

G

Z

X

FIGURE 3 - CHIP CONFIGURATION

Protective Coating

High Purity Alumina Substrate

Resistive

Solder

FIGURE 4 - 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