Power Precison Resistors
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Technology
Wirewound
Metal Foil
Thick Film
Power
up to 250W
up to 50W
up to 2000W
up to 80W
up to 150W
Resistance
0.01 Ω to 250K Ω
0.1 Ω to 500 Ω
0.2 Ω to 500 Ω
0.001 Ω to 500 Ω
0.001 Ω to 100 Ω
0.5 Ω to 300K Ω
Tolerance
to � 0.01%
to � 0.1%
to � 0.5%
� 1%
TCR
to � 20ppm/�C
to � 1ppm/�C
to � 15ppm/�C
� 10ppm/�C (over +20 to +40�C)
to � 100ppm/�C
Part Number
UAL
UNR 4-4020
UNR 4-3425
FHR 4-8xxx
FHR T238
Kxxx-T238
up to 30W
up to 100W
up to 15W
0.002 Ω to 50 Ω
0.1Ω to 50K Ω
0.1 Ω to 100K Ω
0.01 Ω to 50 Ω
to � 1%
FHR 4-3825
FPR2-T218
KPR 2-T218
KHR 2-T218
FPR 2-T220
FPR 2-T221
up to 375W
0.5 Ω to 1M Ω
to � 5%
FPS 2-T220
NPR 2-T220
FHR 2-6760
KHR 2-6760
NPS 2-T220
Metal Film
up to 225W
up to 300W
up to 500W
up to 200W
up to 17W
to 100K Ω
1.0 Ω to 20K Ω
1.0 Ω to 1K Ω
0.1 Ω to 1K Ω
1M Ω to 100T Ω
to � 10%
to � 0.2%
to � 260ppm/�C
to � 50ppm/�C
to � 250ppm/�C
TSC & TVC
RPF
RPG
RPH
RPJ
HS
up to 22W
200 Ω to 700 Ω
10 Ω to 20M Ω
2.0 Ω to 1M Ω
2.0 Ω to 2M Ω
0.1 Ω to 100T Ω
20 Ω to 10T Ω
to � 20%
HTE
PK
RF
RIMS
UD / HD
UT