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”.
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
POWER RATING
P
25 °C
TOLERANCE
LIMITING
VOLTAGE
RESISTANCE RANGE
E12 = ± 10 % Tol., E24 = ± 5 % Tol.
DIN 41432
0.10
Ω
to 2.2 kΩ
0.10
Ω
to 3.6 kΩ
0.10
Ω
to 4.7 kΩ
0.10
Ω
to 8.2 kΩ
0.10
Ω
to 10 kΩ
0.10
Ω
to 12 kΩ
PAC01
1W
±1%
P
x
R
PAC02
(1)
2W
±1%
P
x
R
PAC03
3W
±1%
P
x
R
PAC04
4W
±1%
P
x
R
PAC05
5W
±1%
P
x
R
PAC06
Notes
(1)
6W
±1%
P
x
R
PAC02 WSZ:
P
25 °C
= 1.8 W
• For Pulse Diagrams see AC..series (www.vishay.com/doc?28730)
** Please see document “Vishay Green and Halogen-Free Definitions (5-2008)”:
www.vishay.com/doc?99902
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Document Number: 28731
Revision: 31-Mar-09
PAC.. Series
Cemented Wirewound Precision Resistors
Vishay Draloric
PART NUMBER AND PRODUCT DESCRIPTION
Part Number: PAC300004641FAC000
P
A
C
3
0
0
0
0
4
7
0
1
F
A
C
0
0
0
MODEL
PAC100
= PAC01
PAC200
= PAC02
PAC300
= PAC03
PAC400
= PAC04
PAC500
= PAC05
PAC600
= PAC06
SPECIAL
CHARACTER
0
= Neutral
1
= SWI =
Special winding
(1)
2
= RT
3
= DK SP 20 mm
4
= DK LP 33 mm
(2)
5
= DK LP 17.8 mm
(2)
7
= DK LP 25.4 mm
(2)
8
= DK SP 25.4 mm
9
= WSZ 6720
A
= E/K 22.5 mm
(2)
Z
= Value overflow
(Special)
TCR/MATERIAL
0
=
Standard (100 ppm)
K
= 90 ppm
(1)
C
= 50 ppm
(1)
L
= 30 ppm
(1)
VALUE
3 digit value
1 digit multiplier
MULTIPLIER
7
= *10
- 3
8
= *10
- 2
9
= *10
- 1
0
= *10
0
1
= *10
1
2
= *10
2
3
= *10
3
4
= *10
4
5
= *10
5
TOLERANCE PACKAGING
CODE
CODE
F
= ± 1.0 %
(See
Packaging
table)
SPECIAL
The 3 digits are
used for all special
part styles.
To encode the
non standard
specifications all
special parts of one
series are listed in a
cross reference
table.
000
= Standard
0E0
= CECC E0
0E6
= CECC E6
AC
Product Description: PAC03 4K7 1 % AC
PAC03
MODEL
(3)
4K7
VALUE
(3)
1%
TOLERANCE CODE
(3)
PACKAGING
DESCRIPTION
(4)
Notes
(1)
Special winding on request
(2)
Other dimensions and special character on request
(3)
See “Part Number and Product Description”
(4)
See “Packaging Table”
PACKAGING TABLE
MODEL
PAC01
PAC01 DK/EK
PAC01RT
PAC02
PAC02 DK/EK
PAC02 WSZ
PAC03
PAC03 DK/EK
PAC04
PAC04 DK/EK
PAC05
PAC05 DK/EK
PAC06
PAC06 DK/EK
PIECES
1000
2500
500
AMMO
PACK.
CODE
A1
AE
AC
PACK.
DESC.
A1
AE
AC
500
500
500
500
500
AC
AC
AC
AC
AC
500
AC
500
AC
250
AC
250
LB
LB
LB
LB
LC
LC
LC
LC
LC
LC
1250
BM
BM
PIECES
500
LOOSE
PACK.
CODE
LC
PACK.
DESC.
LC
PIECES
BLISTER
PACK.
CODE
PACK.
DESC.
12NC ORDERING CODE INDICATING RESISTOR TYPE AND PACKAGING
TYPE
ORDERING CODE 2306 327 .....
BANDOLIER IN AMMOPACK
STRAIGHT LEADS
500 units
1000 units
-
2306 327 5....
2306 327 0....
-
2306 327 1....
-
2306 327 2....
-
2306 327 3....
-
2306 327 4....
-
PAC01
PAC02
PAC03
PAC04
PAC05
PAC06
Note
(5)
Radial parts with tin plated copper leads
Document Number: 28731
Revision: 31-Mar-09
RADIAL
2500 units
RT
(5)
-
-
-
-
-
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PAC.. Series
Vishay Draloric
ORDERING INFORMATION
Ordering Code (12NC)
•
The resistors have a 12-digit ordering code staring with
2306 327
•
The subsequent first digit indicates the resistor type and
packaging; see the 12NC Ordering Code table.
•
The remaining 4 digits indicate the resistance value:
- The first 3 digits indicate the resistance value.
- The last digit indicates the resistance decade in
accordance with the 12NC Indicating Resistance
Decade table.
Last Digit of 12NC Indicating Resistance Decade
RESISTANCE DECADE
0.10 to 0.976
Ω
1 to 9.76
Ω
10 to 97.6
Ω
100 to 976
Ω
1 to 9.76 kΩ
10 to 12 kΩ
LAST DIGIT
7
8
9
1
2
3
Cemented Wirewound Precision Resistors
Ordering Example
The ordering code for an PAC02, resistor value 47
Ω
with
± 1 % tolerance, supplied in ammopack of 500 units is:
2306 327 04709.
Product specifications deviating from the standard values
are available on request.
DIMENSIONS
G
D
L
d
For packaging dimensions see separate packaging dimensions page.
DIMENSIONS
in millimeters [inches]
MODEL
PAC01
PAC02
PAC03
PAC04
PAC05
PAC06
D
max.
4.3 [0.169]
4.8 [0.189]
5.5 [0.217]
7.5 [0.295]
7.5 [0.295]
7.5 [0.295]
L
max.
11 [0.433]
13 [0.512]
16.5 [0.650]
18 [0.709]
26 [1.024]
26 [1.024]
0.8 ± 0.03
[0.031 ± 0.001]
d
G
63 ± 1 [2.480 ± 0.039]
63 ± 1 [2.480 ± 0.039]
63 ± 1 [2.480 ± 0.039]
73 ± 1 [2.874 ± 0.039]
73 ± 1 [2.874 ± 0.039]
73 ± 1 [2.874 ± 0.039]
WEIGHT g
per 100 units
52
75
110
190
260
260
PERFORMANCE
TEST
Climatic Category
Damp Heat, Steady State
(40 ± 2) °C, 56 days, (93 ± 3) % RH
Storage
1000 h, 200 °C, no load
Climatic Sequence
IEC 60115-1 4.23
Load Life
1000 h
Resistance to Soldering Heat
(260 ± 5) °C, (10 ± 1) s
Robustness of Termination
10N
Short Time Overload
10 x Rated Power for 5 s
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TEST RESULTS
55/200/56
ΔR
= ± (1.0 %
R
+ 0.05
Ω)
ΔR
= ± (1.0 %
R
+ 0.05
Ω)
ΔR
= ± (0.5 %
R
+ 0.05
Ω)
ΔR
= ± (0.5 %
R
+ 0.05
Ω)
ΔR
= ± (0.2 %
R
+ 0.05
Ω)
ΔR
= ± (0.1 %
R
+ 0.05
Ω)
ΔR
= ± (0.2 %
R
+ 0.05
Ω)
For technical questions, contact:
ww1resistors@vishay.com
Document Number: 28731
Revision: 31-Mar-09
PAC.. Series
Cemented Wirewound Precision Resistors
Vishay Draloric
BENDING FORMS
Ø
D
L
KINK TYPE S = EK
h
Ød
S
P
TYPE
PAC01
PAC02 - PAC04
PAC05 - PAC06
Ød
Ø D
max.
L
h±1
P±1
17.8
S
max.
0.8
(1)
(1)
8
25.4
33.0
2
Ø
D
P
1
L
DOUBLE KINK SP = DK SP
h
Ø
d
c
S
Ø
B
P
2
TYPE
PAC01
Ød
Ø D
max.
L
h±1
P
1
± 1
19.8
22.0
P
2
± 3
17.8
20.0
S
max.
ØB
c
PAC02 - PAC04
0.8
(1)
(1)
8
27.4
25.4
33.0
P
1
2
1.0 ± 0.1
4.5 ± 1
PAC05 - PAC06
35.0
Ø
D
L
DOUBLE KINK LP = DK LP
h
Ø
d
c
S
Ø
B
P
2
TYPE
PAC01 - PAC02
PAC02 - PAC04
PAC05 - PAC06
Note
(1)
Ød
Ø D
max.
L
h±1
P
1
± 1
17.8
P
2
± 3
17.8
25.4
33.0
S
max.
ØB
c
0.8
(1)
(1)
8
25.4
33.0
2
1.0 ± 0.1
4.5 ± 1
See table DIMENSIONS
For technical questions, contact:
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147
Document Number: 28731
Revision: 31-Mar-09
PAC.. Series
Vishay Draloric
Cemented Wirewound Precision Resistors
BENDING FORMS
A
L
Ø
D
I
b
F
a
WSZ
H
E
Ø
d
Solder pad dimensions
TYPE
PAC02 WSZ
Ød
0.8
Ø D
max.
(1)
A
17 ± 0.5
L
11 - 12
P
2
P
F
4.8 ± 0.5
H
3.6 ± 0.5
E
5.0 ± 0.5
a
2.5
Δh
1
b
5.5
l
14.5
L
Ø
D
H
1
RADIAL TAPED = RT
H
H
0
L
1
P
1
F
d
W
2
1 max.
t
W
0
W
1
W
P
0
D
0
Direction of Unreeling
TYPE PAC01
Lead Ø
Diameter
Length
Pitch of components
Pitch of spocket holes
(2)
Distance between hole center and resistor center
Distance between hole center and lead center
Lead spacing
Angle of insertion
Width of carrier tape
Width of adhesive tape
Position of holes
Position of adhesive tape
Body to hole center
Lead crimp to hole
Hole Ø
Thickness of tape
(4)
Height for cutting
Height for insertion
Notes
(1)
See table DIMENSIONS
(2)
Test over 10 holes - 9 intervals P 12.7 x 9 = 114.3 ± 0.5
0
(3)
Parallelism, < 0.5 mm
(4)
Thickness of carrier tape: 0.55 mm ± 0.1
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Document Number: 28731
Revision: 31-Mar-09
center
(3)
Ød
ØD
L
P
P
0
P
1
P
2
F
Δh
1
W
W
0
W
1
W
2
H
H
0
D
0
t
L
1
H
1
0.8
(1)
(1)
12.7 ± 1.0
12.7 ± 0.3
3.85 ± 0.7
6.35 ± 1.0
5.0 + 0.6, - 0.1
2 max.
18.0 ± 0.5
12.0 ± 0.5
9.0 ± 0.5
0.5 max.
19.5 ± 1.0
16.0 ± 0.5
4.0 ± 0.2
0.9 max.
11 max.
32 max.
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