PWB

www.vishay.com

Vishay Electro-Films

Revision: 04-Mar-13

1

Document Number: 61021

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

Thin Film Power Resistors

Product may not be to scale

The PWB series resistor chips offer a 1 W power rating in a

relatively small size. They offer one of the best combinations

of size and power available.

The PWBs are manufactured using Vishay Electro-Films

(EFI) sophisticated thin film equipment and manufacturing

technology. The PWBs are 100 % electrically tested and

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

class K.

FEATURES

• Wire bondable

•Power: 1 W

• Chip size: 0.070 inches square

• Case: 0707

• Resistance range: 0.3

 to 20 k

• Oxidized silicon substrate for good power dissipation

• Resistor material: Tantalum nitride, self-passivating

• Material categorization: For definitions of compliance

APPLICATIONS

The PWB resistor chips are used mainly in higher power

circuits of amplifiers where increased power loads require a

more specialized resistor.

TEMPERATURE COEFFICIENT OF RESISTANCE, VALUES, AND TOLERANCES

PARAMETER

VALUE

UNIT

Total Resistance Range

0.3 to 20K



Standard Tolerances

± 0.5, ± 1, ± 5

%

TCR

± 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

Moisture Resistance, MIL-STD-202, Method 106

± 0.5 max.

R/R

%

Stability, 1000 h, + 125 °C, 500 mW

± 0.5 max.

R/R

%

Operating Temperature Range

- 55 to + 125

°C

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

± 0.1 max.

R/R

%

High Temperature Exposure, + 150 °C, 100 h

± 0.2 max.

R/R

%

Dielectric Voltage Breakdown

200

V

Insulation Resistance



Operating Voltage

Steady State

5 x Rated Power

100 max.

200 max.

V

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

(Conductive epoxy die attach to alumina substrate)

1

W

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

± 0.25 max.

R/R

%

± 250 ppm/°C

± 50 ppm/°C

± 100 ppm/°C

0.5 %

20 k

Ω

50

Ω

0.3

Ω

2

Ω 10 Ω

10 k

Ω

1 %

5 %

Tightest Standard Tolerance Available

* ± 600 ppm/C R < 2

Ω

*