QFN

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Vishay Electro-Films

Revision: 05-Apr-13

1

Document Number: 61079

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

NiCr Thin Film, Top-Contact Resistor

Product may not be to scale

The QFN series nichrome on quartz resistor chips offer a

combination of nichrome stability, excellent frequency

response and small size.

The QFNs are manufactured using Vishay Electro-Films (EFI)

sophisticated thin film equipment and manufacturing

technology. The QFNs are 100 % electrically tested and

visually inspected to MIL-STD-883, method 2032 class H

or K.

FEATURES

• Wire bondable

• Chip size: 0.020 inches square

• Case: 0202

• Resistance range: 1

 to 510 k

• Resistor material: Nichrome

• Quartz substrate: < 0.1 pF shunt capacitance

• Power: 25 mW

• Material categorization: For definitions of compliance

APPLICATIONS

Vishay EFI QFN top-contact resistor chips are widely used

in hybrid packages where space is limited. Designed with

capacity to handle substantial power loads, they also have

the benefit of nichrome stability.

Recommended for hermetic environments where die is not

exposed to moisture.

TEMPERATURE COEFFICIENT OF RESISTANCE, VALUES, AND TOLERANCES

PARAMETER

VALUE

UNIT

Total Resistance Range

1 to 510K



Standard Tolerances

± 0.1, ± 0.5, ± 1

%

TCR

± 25, ± 50, ± 100, ± 250

ppm/°C

STANDARD ELECTRICAL SPECIFICATIONS

PARAMETER

VALUE

UNIT

Noise, MIL-STD-202, Method 308



100

 to 250 k

< 100

 or > 251 k

- 35 typ.

- 20 typ.

dB

Stability, 1000 h, + 125 °C, 50 mW

± 0.1 % max.

R/R

%

Operating Temperature Range

- 55 to + 125

°C

Thermal Shock, MIL-STD-202, Method 107, Test Condition F

± 0.25 max.

R/R

%

High Temperature Exposure, + 150 °C, 100 h

± 0.5 max.

R/R

%

Dielectric Voltage Breakdown

200

V

Insulation Resistance



Operating Voltage

100 max.

V

DC Power Rating at + 70 °C (Derated to zero at + 175 °C)

0.025

W

5 x Rated Power Short-Time Overload, + 25 °C, 5 s

± 0.25 max.

R/R

%

1

Ω

0.1 %

Tightest Standard Tolerance Available

± 25 ppm/°C

± 250 ppm/°C

± 50 ppm/°C

± 100 ppm/°C

1 %

0.5 %

10

Ω 30 Ω 100 Ω

200 k

Ω 360 kΩ 510 kΩ