Datasheet

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Document Number: 28731
144 Revision: 03-Dec-09
PAC.. Series
Vishay Draloric
Cemented Wirewound Precision Resistors
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 “MIL-STD-202E, Method 215” and
“IEC 60068-2-45”.
Notes
(1)
PAC02 WSZ: P
25 °C
= 1.8 W
(2)
Resistance value to be selected for ± 1 % tolerance from E24 and E96
• For Pulse Diagrams see AC..series (www.vishay.com/doc?28730
)
** Please see document “Please see document “Vishay Material Category Policy”:”: www.vishay.com/doc?99902
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
POWER RATING
P
25 °C
LIMITING
VOLTAGE
U
max.
RESISTANCE RANGE
(2)
TOLERANCE
PAC01 1 W 0.10 Ω to 2.2 kΩ ± 1 %
PAC02
(1)
2 W 0.10 Ω to 3.6 kΩ ± 1 %
PAC03 3 W 0.10 Ω to 4.7 kΩ ± 1 %
PAC04 4 W 0.10 Ω to 8.2 kΩ ± 1 %
PAC05 5 W 0.10 Ω to 10 kΩ ± 1 %
PAC06 6 W 0.10 Ω to 12 kΩ ± 1 %
P x R
P x R
P x R
P x R
P x R
P x R