• High power in small packages (1 W/0207 size to
3 W/0617 size)
• Different lead materials for different applications
• Defined interruption behaviour
• Lead (Pb)-free solder contacts
• Pure tin plating provides compatibility with lead (Pb)-free
and lead containing soldering processes
• Compatible with “Restriction of the use of Hazardous
Substances” (RoHS) directive 2002/95/EC (issue 2004)
APPLICATIONS
• All general purpose power applications
A homogeneous film of metal alloy is deposited on a high
grade ceramic body. After a helical groove has been cut in
the resistive layer, tinned connecting wires of electrolytic
copper or copper-clad iron are welded to the end-caps. The
resistors are coated with a red, nonflammable lacquer which
provides electrical, mechanical and climatic protection. This
coating is not resistant to aggressive fluxes. The
encapsulation is resistant to all cleaning solvents in
accordance with “MIL-STD-202E, method 215”, and
“IEC 60068-2-45”.
The 12NC for resistor type PR02 with Cu leads and a value
of 750 Ω with 5 % tolerance, supplied on a bandolier of
1000 units in ammopack, is: 2306 198 53751.
AMMOPACKREEL
STRAIGHT LEADS
52 mm52 mm63 mm52 mm
12NC - resistor type and packaging. Preferred types in bold
ORDERING CODE 23.. ... ..... (LOOSE IN BOX)
TYPE
PR01Cu 0.6522 193 03...−−−
PR02Cu 0.8522 194 23...−−−
PR03Cu 0.85−22 195 23...−−
Notes:
(2)
PR01 pitch 12.5 mm.
(3)
PR02 pitch 15.0 mm.
(4)
PR03 pitch 20.0 mm, with reversed kinking direction as opposed to the drawing for the type with double kink figure.
The nominal resistance and tolerance are marked on the
resistor using four colored bands in accordance with IEC
publication 60062, “Color codes for fixed resistors”.
OUTLINES
The length of the body (L1) is measured by inserting the
leads into holes of two identical gauge plates and moving
these plates parallel to each other until the resistor body is
clamped without deformation (“IEC publication 60 294”).
Power Metal Film Resistors
MOUNTING
MASS
(g)
The resistors are suitable for processing on automatic
insertion equipment and cutting and bending machines.
MOUNTING PITCH
TYPELEAD STYLE
PR01
PR02
PR03
Note:
(1)
Recommended minimum value.
PITCH
mme
straight leads12.5
(1)
5
radial taped 4.82
double kink large pitch17.87
double kink small pitch12.55
straight leads15.0
(1)
6
radial taped 4.82
double kink large pitch17.87
double kink small pitch15.06
straight leads23.0
(1)
9
double kink large pitch25.410
double kink small pitch20.08
FUNCTIONAL DESCRIPTION
PRODUCT CHARACTERIZATION
Standard values of nominal resistance are taken from the E96/E24 series for resistors with a tolerance of ± 1 % or ± 5 %.
The values of the E96/E24 series are in accordance with “IEC publication 60063”.
FUNCTIONAL PERFORMANCE
< 1 kΩ
51 kΩ
T
amb
(1)
= 40 °C
(°C)
T
m
LIMITING
POWER
(W)
0.6
1.2
1.6
= 40 °C
T
1.00
P
(W)
0.75
0.50
0.25
100 000 h
10 000 h
1000 h
∆
R
2.05.0
10
1.0
0.1 %0.20.5
amb
< 30 k
> 30 k
< 1 k
PR01 Drift nomogram
= 40 °C
T
2.00
P
(W)
1.50
1.00
0.50
100 000 h
10 000 h
1000 h
∆
5.0
10
2.0 1.0 0.50.2 0.1 %
R
amb
< 1 kΩ
< 39 kΩ
> 39 kΩ
PR02 Drift nomogram
70 °C
100 °C
125 °C
155 °C
205 °C
(°C)
T
m
Ω
Ω
Ω
10 5.02.0
100 000 h
10 000 h
1000 h
1.0 0.5
(W)
3.00
P
2.25
1.50
0.75
> 51 kΩ
∆
R
0.1 %
0.2
PR03 Drift nomogram
T
(°C)
m
70 °C
100 °C
125 °C
155 °C
220 °C
LIMITING VALUES
TYPE
PR01
PR02
LEAD
MATERIAL
Cu
Cu
FeCu
PR03
Cu
FeCu
Note:
(1)
The maximum voltage that may be continuously applied to the
RANGE
R <1Ω
1 Ω≤R1.0
R <1Ω
1 Ω≤R2.0
1 Ω≤R1.3
R <1Ω
1 Ω≤R3.0
1 Ω≤R2.5
LIMITING
VOLTAGE
(V)
350
500
750
resistor element, see “IEC publication 60115-1”.
The maximum permissible hot-spot temperature is 205 °C for PR01,
220 °C for PR02 and 250 °C for PR03.