www.vishay.com For technical questions, contact: filmresistorsleaded@vishay.com Document Number: 28729
110 Revision: 14-Oct-09
PR01/02/03
Vishay BCcomponents
Power Metal Film Leaded Resistors
DESCRIPTION
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, non-flammable 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 IEC 60068-2-45.
FEATURES
•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
•Compliant to RoHS directive 2002/95/EC
APPLICATIONS
•All general purpose power applications
Notes
(1) 1 % tolerance is available for Rn-range from 1 R upwards
(2) Ohmic values (other than resistance range) are available on request
•R value is measured with probe distance of 24 mm ± 1 mm using 4-terminal method
TECHNICAL SPECIFICATIONS
DESCRIPTION
VALUE
PR01
PR02 PR03
Cu-lead FeCu-lead Cu-lead FeCu-lead
Resistance Range (2) 0.22 Ωto1MΩ0.33 Ωto1MΩ1Ωto1MΩ0.68 Ωto1MΩ1Ωto 1 MΩ
Resistance Tolerance and Series ± 1 % (E24, E96 series); ± 5 % (E24 series) (1)
Rated Dissipation, P70:
R<1Ω0.6 W 1.2 W - 1.6 W -
1Ω≤R1W 2W 1.3W 3W 2.5W
Thermal Resistance (Rth) 135 K/W 75 K/W 115 K/W 60 K/W 75 K/W
Temperature Coefficient ≤ ± 250 ppm/K
Maximum Permissible Voltage
(Umax. AC/DC) 350 V 500 V 750 V
Basic Specifications IEC 60115-1
Climatic Category (IEC 60068-1) 55/155/56
Stability After:
Load (1000 h, P70)ΔR max.: ± (5 % R + 0.1 Ω)
Long Term Damp Heat Test (56 Days) ΔR max.: ± (3 % R + 0.1 Ω)
Soldering (10 s, 260 °C) ΔR max.: ± (1 % R + 0.05 Ω)