Document Number: 63131

For any questions, contact: foil@vishay.com

www.vishay.com

Revision: 13-Nov-07

1

Z202

Vishay Foil Resistors

Ultra High Precision Z-Foil Miniature Resistor with

TCR of ± 0.05 ppm/°C, PCR of 5 ppm at Rated Power

and Tolerance to ± 0.01 %

Any value at any tolerance available with resistance range

The Z202 is a miniaturized version of the now famous Z201. It is

inherent performance of Z-Foil resistors.

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.)

• Tolerance: to ± 0.01 %

• Power coefficient of resistance (PCR) “ΔR due

to self heating”: ± 5 ppm at rated rower

• Electrostatic discharge (ESD) above 25 000 V

• Resistance range: 5 Ω to 30 kΩ

(for higher or lower values, please contact us)

• Power rating: 0.25 W at + 70 °C; 0.125 W at + 125 °C

• Load life stability: ± 0.01 % maximum ΔR at + 70 °C at

Rated power for 2000 h

• Non inductive, non capacitive design

• Current noise: - 40 dB

• Thermal EMF: < 0.1 µV/°C

• Voltage coefficient: < 0.1 ppm/V

• Non inductive: < 0.08 µH

• Non hot spot design

• Maximum working voltage: 250 V

• Terminal finishes available:

lead (Pb)-free

tin/lead alloy

• Any value available within resistance range (e.g. 1K234)

• Prototype samples available from 48 h. For more

information, please contact foil@vishay.com

• For better performances, please see Z201 datasheet

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

FIGURE 1 - IMPRINTING AND DIMENSIONS

DIMENSIONS

INCHES

mm

L:

0.250 ± 0.010

6.35 ± 0.25

H:

0.250 ± 0.010

6.35 ± 0.25

W:

0.125 ± 0.010

3.18 ± 0.25

ST:

0.020 ± 0.010

0.51 ± 0.25

LL:

0.750 minimum

19.05 minimum

LS:

0.125 ± 0.005

3.18 ± 0.13

100R01

0.01 %

0745 -

Z202

V

ST

LS

0745 -

H

L

W

Front View

Rear View

Lead Material

#22 AWG (0.025 Dia.)

Solder Coated Copper

Resistance

Value Code

Tolerance

LL

100R01

0.01 %

Z202

V

For Lead (Pb)-free Option

Date Code

45

Week

07

Year

FIGURE 2 - POWER DERATING CURVE

TABLE 1 - TOLERANCE AND TCR VERSUS

VALUE

STANDARD

TOLERANCE

TYPICAL TCR AND

MAXIMUM SPREAD

- 55 °C to + 125 °C (+ 25 °C Ref.)

50

Ω to 30 kΩ

± 0.01 %

± 0.2 ± 1.8

20

Ω to < 50 Ω

± 0.02 %

± 0.2 ± 2.8

10

Ω to < 20 Ω

± 0.05 %

± 0.2 ± 4.8

5

Ω to < 10 Ω

± 0.1 %

± 0.2 ± 6.8

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