www.vishay.com

Document Number: 28731

144

Revision: 06-Oct-11

PAC.. Series

Vishay Draloric

Cemented Wirewound Precision Resistors

This document is subject to change without notice.

FEATURES

 High power dissipation in small volume

 Ideal for pulse application

 TCR ± 100 ppm/K

 Maximum permissible hot spot temperature is

275 °C

 Lead (Pb)-free

 Tolerance 1 %

 Compliant to RoHS Directive 2002/95/EC

The resistor element is a resistive wire which is wound in a

single layer on a ceramic rod. Metal caps are pressed over

the ends of the rod. The ends of the resistance wire and the

leads are connected to the caps by welding. Tinned

copper-clad iron leads with poor heat conductivity are

employed permitting the use of relatively short leads to

obtain stable mounting without overheating the solder joint.

The resistor is coated with a green silicon cement which is

not

resistant

to

aggressive

fluxes.

The

coating

is

non-inflammable, will not drip even at high overloads and

is resistant to most commonly used cleaning solvents, in

accordance with IEC 60068-2-45.

Notes

STANDARD ELECTRICAL SPECIFICATIONS

MODEL

POWER RATING

LIMITING

VOLTAGE

TOLERANCE

PAC01

1 W

0.10

 to 2.2 k

± 1 %

2 W

0.10

 to 3.6 k

± 1 %

PAC03

3 W

0.10

 to 4.7 k

± 1 %

PAC04

4 W

0.10

 to 8.2 k

± 1 %

PAC05

5 W

0.10

 to 10 k

± 1 %

PAC06

6 W

0.10

 to 12 k

± 1 %

P x R

P x R

P x R

P x R

P x R

P x R