WK202070C1001FD500 Datasheet, PDF (4/5 Pages) Vishay Siliconix – High Power Metal Oxide Leaded Resistors

High Power Metal Oxide Leaded Resistors
WK/WR
Vishay Draloric
2000 ^{WR 5/WK8}
WR 4
WK 2
1000
Secondary Conditions:
a) P^–_max. see diagram below
b) See diagram below
c) ϑu ≤ 70 °C
0
10^-5
10^-4
10^-3
10^-2
MAX. PULSE VOLTAGE
10^-1
10⁰
10
SQUARE PULSE t_i [s]
130
10
WR4
120
WR5/WK8
1
110
WR5/WK8
100
0.1
WR4
90
1K
10K
NON-LINEARITY
100K
1M
10M
RESISTANCE VALUE IN Ω
0.01
10K
100K
CURRENT NOISE
1M
10M
RESISTANCE VALUE IN Ω
PERFORMANCE
TEST
CONDITIONS OF TEST
Rated Dissipation, P₇₀
IEC 60115-1, 4.25.1
1000 h at 70 °C 1.5 h ON, 0.5 h OFF
Endurance at UCT
IEC 60115-1, 4.25.3
Overload Test
IEC 60115-1, 4.13
Thermal Shock
IEC 60115-1, 4.19
Climatic Sequence
IEC 60115-1, 4.23
Damp Heat Steady State
IEC 60115-1, 4.24
Resistance to Soldering Heat
IEC 60115-1, 4.18
Robustness of Terminations
IEC 60115-1, 4.16
Vibration
IEC 60115-1, 4.22
1000 h at 200 °C without load
Short time overload 5 s at 2.5 x rated voltage or ≤ ± twice the limiting
element voltage
Rapid change between upper and lower category temperature
Dry heat, damp heat cycle, cold, low air pressure
56 days; 40 °C; 90 % to 95 % RH; loaded with 0.01 P₇₀
10 s at 260 °C solder bath temperature
Tensile, bending and torsion
Frequency 10 Hz to 500 Hz; displacement 1.5 mm or
acceleration 10 g; three directions; 6 h
Note
(1) _{Limits for change of resistance at test}
REQUIREMENTS
(ΔR MAX.) ⁽¹⁾
WK2 ≤ ± (5 % R + 0.1 Ω)
WK8 ≤ ± (2 % R + 0.1 Ω)
WR4, WR5 ≤ ± (5 % R + 0.1 Ω)
WK2, WR4 ≤ ± (5 % R + 0.1 Ω)
WR5, WK8 ≤ ± (1 % R + 0.1 Ω)
≤ ± (0.25 % R + 0.05 Ω)
≤ ± (0.25 % R + 0.05 Ω)
≤ ± (0.5 % R + 0.1 Ω)
≤ ± (1.5 % R + 0.1 Ω)
≤ ± (0.25 % R + 0.05 Ω)
≤ ± (0.25 % R + 0.05 Ω)
≤ ± (0.25 % R + 0.05 Ω)
APPLICABLE SPECIFICATIONS
• EN140100, EN60115-1, IEC 60115-1
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Document Number: 20128
Revision: 26-May-10