PR01 Datasheet, PDF (1/14 Pages) Vishay Siliconix – Power Metal Film Resistors

PR01/02/03
Vishay BCcomponents
Power Metal Film Resistors
FEATURES
• High power in small packages
• Different lead materials for different applications
• Defined interruption behaviour.
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”.
TECHNICAL SPECIFICATIONS
DESCRIPTION
Resistance range⁽³⁾
PR01
0.22 Ω to 1 MΩ
PR02
Cu-lead
VALUE
FeCu-lead
0.33 Ω to 1 MΩ
1 Ω to 1 MΩ
PR03
Cu-lead
FeCu-lead
0.68 Ω to 1 MΩ
1 Ω to 1 MΩ
Resistance tolerance and series
± 1 % (E24, E96 series); ± 5 % (E24 series); see notes 1 and 2
Maximum dissipation at T_amb = 70 °C:
R<1Ω
0.6 W
1.2 W
−
1.6 W
−
1Ω≤R
1W
2W
1.3 W
3W
2.5 W
Thermal resistance (R_th)
Temperature coefficient
Maximum permissible voltage
(DC or RMS)
Basic specifications
135 K/W
350 V
75 K/W
115 K/W
≤± 250 × 10^−6/K
500 V
IEC 60115-1 and 60115-4
60 K/W
750 V
75 K/W
Climatic category (IEC 60068)
55/155/56
Stability after:
load
∆R/R max.: ± 5 % + 0.1 Ω
climatic tests
∆R/R max.: ± 3 % + 0.1 Ω
soldering
∆R/R max.: ± 1 % + 0.05 Ω
Notes
1. 1 % tolerance is available for R_n-range from 1R upwards.
2. 2 % tolerance is available on request for R_n-range from 1R upwards.
3. Ohmic values (other than resistance range) are available on request.
Document Number: 28729
Revision: 24-Feb-04
For technical questions contact: [e-mail]
www.vishay.com
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