Z201 (Z-Foil)

Vishay Foil Resistors

Document Number: 63113

For any questions, contact: foil@vishay.com

www.vishay.com

Revision: 19-Apr-07

1

Ultra High Precision Z-Foil Resistor with TCR of ± 0.05 ppm/°C,

PCR of 5 ppm at Rated Power, Tolerance of ± 0.005 %

and Load Life Stability of ± 0.005 %

INDUSTRY BREAKTHROUGH

Any value at any tolerance available within resistance rage

INTRODUCTION

The Z201 (0.150" lead spacing) and Z201L (0.200" lead

breakthrough. This is the 3rd in a series of ultra-precision

introduced by Vishay in 1962. Each represents an

improvement on the earlier model. The TCR slope of the

Z201 is 0.2 ppm/

°C (- 55 °C to + 125 °C, + 25 °C Ref.) and is

an order of magnitude better than the original S102C. The

demanding analog applications.

The Z-Foil technology provides a significant reduction of the

resistive component’s sensitivity to ambient temperature

variations (TCR) and applied power changes (PCR).

Designers can now guarantee a high degree of stability and

accuracy in fixed-resistor applications using solutions based

on Vishay’s revolutionary Z-Foil technology.

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):

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

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

+ 25 °C Ref.)

• Power Coefficient of Resistance “ΔR due to self

heating”: ± 5 ppm at Rated Power

• Rated Power: 0.6 W at 70 °C

0.3 W at 125 °C

• Resistance Tolerance: to ± 0.005 %

• Load Life Stability: to ± 0.005 % at 70 °C, 2000 hours at

Rated Power

• Resistance Range: 10 Ω to 100 kΩ (higher or lower Values

of Resistance available)

• Electrostatic Discharge (ESD) above 25 000 Volts

• Non Inductive, Non Capacitive Design

• Rise Time: 1.0 ns without ringing

• Current Noise: 0.01: - 40 dB

• Thermal EMF: 0.1 µV/°C Max.

0.05 µV/°C typical

• Voltage Coefficient: < 0.1 ppm/V

• Non Inductive: 0.08 µH

• Terminal Finishes available: Lead (Pb)-free

Tin/Lead Alloy

• Maximum Working Voltage: 300 V

• Drop in Replacement for S102C/K

• Matched sets are available per request

• For better performances please contact us

APPLICATIONS

• Precision Amplifiers, High Precision Instrumentation,

Medical and Automatic Test Equipment

• Laboratory, Audio (High End Stereo Equipment)

• EB Applications, Military, Airborne and Space

* Pb containing terminations are RoHS compliant, exemptions may apply

TABLE 1 - TOLERANCE AND TCR VERSUS

VALUE

STANDARD

TOLERANCE

TYPICAL TCR AND

MAXIMUM SPREAD

- 55 °C TO + 125 °C

(+ 25 °C REF.)

100

Ω to 100 kΩ

± 0.005 %

± 0.2 ± 0.6 ppm/°C

80

Ω to < 100 Ω

± 0.005 %

± 0.2 ± 0.8 ppm/°C

50

Ω to < 80 Ω

± 0.01 %

± 0.2 ± 1.0 ppm/°C

25

Ω to < 50 Ω

± 0.01 %

± 0.2 ± 1.3 ppm/°C

10

Ω to < 25 Ω

± 0.02 %

± 0.2 ± 1.6 ppm/°C

FIGURE 1 - POWER DERATING CURVE

Available

Pb-free

RoHS*

COMPLIANT

200 %

175 %

150 %

125 %

100 %

75 %

50 %

25 %

0

- 75

- 50

- 25

0

+ 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200

Ambient Temperature (°C)

- 55 °C

+ 70 °C

Double Rated Power

Rated Power

Safe operation

for < 150 ppm

ΔR after

2000 hours

load life