Document Number: 63106

For any questions, contact: foil@vishay.com

www.vishay.com

Revision: 28-Jun-07

1

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

Vishay Foil Resistors

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

Any value at tolerance available within resistance range

INTRODUCTION

One of the most important parameters influencing stability is

the Temperature Coefficient of Resistance (TCR). Although

low, this characteristic has been further refined over the

years.

The Z-Foil technology provides a significant reduction to the

resistive element’s sensitivity to ambient temperature

variations (TCR) and to self heating when power is applied

(power coefficient).

Along with the inherently low PCR and TCR, Z-Foil

technology also provides remarkably improved load life

stablility, low noise and availability of tight tolerance.

The Flip Chip configuration provides a substantial PCB

space saving of more than 35 % vs. a surface mount chip

with wraparound terminations. The VFCP is available in any

value within the specified resistance range.

Our Application Engineering Department is available to

advise and make recommendations. For non-standard

technical requirements and special applications, please

contact us.

FEATURES

• Temperature Coefficient of Resistance (TCR):

± 0.05 ppm/°C typical (0 °C to + 60 °C)

± 0.2 ppm/°C typical (- 55 °C to + 125 °C,

+

25 °C Ref.)

• Tolerance: to ± 0.01 % (100 ppm)

• Power Coefficient “ΔR due to self heating”

5 ppm at Rated Power

• Load Life Stability (70 °C for 2000 hours):

± 0.005 % (50 ppm)

• Power Rating to: 600 mW at + 70 °C

• Electrostatic Discharge (ESD) above 25 000 V

• Resistance Range: 10Ω to 150 kΩ (for lower and higher

values, please contact us)

• Non Inductive, Non Capacitive Design

• Short time overload ≤ 0.005 % (50 ppm)

• Non hot spot design

• Rise time: 1ns without ringing

• Current Noise: - 40 dB

• Voltage Coefficient < 0.1 ppm/V

• Non Inductive: < 0.08 µH

• Terminal Finishes available: Lead (Pb)-free

Tin/Lead Alloy

• Matched sets are available per request

• Any value available within resistance range (e.g. 1K2345)

• Prototype samples available from 48 hours. For more

information, please contact foil@vishay.com

APPLICATIONS

• Automatic Test Equipment (ATE)

• High Precision Instrumentation

• Laboratory, Industrial and Medical

• Audio

• EB Applications (electron beam scanning and recording

equipment, electron microscopes)

• Military and Space

• Airborne

• Down Hole instrumentation

• Communication

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

TABLE 1 - TOLERANCE AND TCR VS

RESISTANCE VALUE

RESISTANCEVALUE

(

Ω)

TOLERANCE

(%)

TYPICAL TCR AND

MAX. SPREAD

(- 55 °C to + 125 °C,

+ 25 °C Ref.)

250 to 150K

± 0.01

± 0.2 ± 1.6

100 to < 250

± 0.02

± 0.2 ± 1.6

50 to < 100

± 0.05

± 0.2 ± 1.8

25 to < 50

± 0.1

± 0.2 ± 2.8

10 to < 25

± 0.25

± 0.2 ± 2.8

Bottom View

FIGURE 1 - POWER DERATING CURVE

Available

Pb-free

RoHS*

COMPLIANT

100

75

50

25

0

- 75

- 50

- 25

0

+ 25

+ 50

+ 75 + 100 + 125 + 150 + 175

Ambient Temperature (°C)

+ 70 °C

- 55 °C