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Cement Fixed Resistors
水泥型固定电阻器
Feature (特性)
• Self-extinguishing 完全不可燃
• Extremely small & sturdy mechanically safe 体积小且坚固安全
• Non-Inductive type available 无感也可提供
• Excellent flame & moisture resistance 卓越抗湿性
• Too low or too high values on Wire-wound & Power-film type can be supplied on a
case to case basis 过高或过低阻值，绕线或切割型都可以特别提供
Derating Curve (降功率曲线) Heat Rise Chart (表面温升)
负载比率(%)
Percent rated load (%)
Heat rise (温升)(˚C)
Ambient temperature (环境温度)(°C)
Percent rated load (负载比率)(%)
UniOhm
Axial Leaded Type - PRW Series (轴式导线型-PRW系列)
Part No.
料号
PRW02W PRW-2W 7 7 18 28±5
PRW03W PRW-3W 8 8 22 32±5
PRW05W PRW-5W 10 9 22 35±5
PRW07W PRW-7W 10 9 35 35±5
PRW0AW PRW-I0W 10 9 49 35±5
PRW0FW PRW-15W 12.5 11.5 49 35±5
PRW020 PRW-20W 14.5 13.5 60 35±5
PRW025 PRW-25W 14.5 13.5 64 35±5
Type
类型
W ± 1 D ± 1 L ± 1 H d ±0.05
Axial Leaded Type - PRWC Series (轴式导线型-PRW系列)
Part No.
料号
PRWC3W PRWC-3W 6 6 20
PRWC5W PRWC-5W 6 6 25
PRWC7W PRWC-7W 9 9 25
Type
类型
W ± 1 D ± 1 L ± 1 H d ±0.05
Dimension ( 尺寸 )(mm)
Dimension ( 尺寸 )(mm)
28
35 ± 5
35 ± 5
Resistance Range
Wire-wound
绕线型
0.70 0.1Ω~27Ω 28Ω~120KΩ
0.70 0.1Ω~39Ω 40Ω~150KΩ
0.75 0.1Ω~47Ω 48Ω~150KΩ
0.75 0.1Ω~680Ω 681Ω~200KΩ
0.75 0.1Ω~910Ω 911Ω~200KΩ
0.75
0.75
0.75
± 5
0.70 1Ω~27Ω 28Ω~120KΩ
0.75 1Ω~100Ω 101Ω~150KΩ
0.75 1Ω~100Ω 101Ω~150KΩ
1Ω ~ 1KΩ
2Ω ~ 1.2KΩ
2Ω ~ 1.2KΩ
Resistance Range
Wire-wound
绕线型
阻值范围
Power Film
切割型
1.1KΩ~200KΩ
1.3KΩ~200KΩ
阻值范围
Power Film
切割型
Axial Leaded Type - PRWA Series (
轴式导线型-PRWA系列)
Part No.
料号
PRWA2W PRWA-2W 7 7 18 28
PRWA5W PRWA-5W 10 9 22
PRWA7W PRWA-7W 10 9 35
PRWAAW PRWA-10W 10 9 49
Type
类型
W ± 1 D ± 1 L ± 1 H d ±0.05
Dimension ( 尺寸 )(mm)
± 5
35 ± 5
35 ± 5
35 ± 5
Resistance Range
Wire-wound
绕线型
0.70 0.1Ω~27Ω 28Ω~120KΩ
0.75 0.1Ω~47Ω 48Ω~150KΩ
0.75 0.1Ω~680Ω 681Ω~200KΩ
0.75 0.1Ω~910Ω 911Ω~200KΩ
阻值范围
Power Film
切割型
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