POWER METAL FIXED RESISTORS
Features
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High Power, small dimension
Stable performance against environment conditions
Define Interruption behavior
RoHs , REACH compliance
PFOS & Halogen Free.
PR series close equivalent
Application
• General purpose power application PMR Series
POWER METAL FIXED RESISTOR
Structure
Derating Curve
Max Working Max overload
Voltage
Voltage
Type
PMR1WSSS
PMR2WS
PMR3WS
350V
500V
750V
400V
600V
800V
Dielectric
Withstanding
Voltage
Operating
Temperature
Range
350V
-55℃~+155℃
350V
-55℃~+155℃
350V
-55℃~+155℃
Type
R < 1Ω 0.6W
PMR 1WSSS
R ≥ 1Ω 1W
PMR 2WS
PMR 3WS
Power Rating D (mm)
Max
2W
3W
2.5
L (mm)
Max
6.5
D (mm)
Resistance
Range
H (mm)
0.54±0.05 25±3.0
TCR
0.56Ω～100KΩ≦±350 PPM/℃
0.56 Ω ~ 1MΩ 101KΩ～470KΩ≦±400 PPM/℃
471KΩ～1MΩ≦±800 PPM/℃
4.0
11.0
5.5
16.0
0.75±0.05 25±3.0 3.9 Ω ~ 680KΩ 3.9Ω～100KΩ≦±350 PPM/℃
101KΩ～680KΩ≦±400 PPM/℃
0.75±0.05 25±3.0 12.1 Ω ~ 150KΩ
12Ω～100KΩ≦±350 PPM/℃
101KΩ～180KΩ≦±400 PPM/℃
Characteristic
Test Item
Standard
Pulse overload
ΔR/R ≤ ±(5.0%+0.05Ω)
Short time
overload
Temperature
cycling
Terminal strength
Test Item
Standard
Less than 100KΩ ΔR/R ≤ ±5.0%
Load Life in humidity
100KΩ or more ΔR/R ≤ ± 10.0%
ΔR/R ≤ ±(2.0%+0.05Ω)
Solder ability
Resistance to
soldering heat
Less than 100KΩ ΔR/R±5.0%
Load Life
100KΩ or more ΔR/R ≤ ± 10.0%
Min. 95% coverage
ΔR/R ≤ ±(2.0%+0.05Ω)
No evidence of
mechanical damage
No deterioration of protective coating
and markings
Resistance to
solvent
ΔR/R ≤ ±(1.0%+0.05Ω)
Dielectric withstanding No evidence of flashover, mechanical
damage, arcing or insulation
voltage
breakdown