NPR NPS 2-T220
NHR NHS 2-T220 T221
Power Resistors
• Resistances from 0.02Ohm to 100kOhms
• Power Rating to 50Watt
• Resistance Tolerances to ±1%
• TCR to ±50ppm/°C
• Load Stability to 0.5%
• TO-220 Housing
• Convenient SMD D2Pak Available
SPECIFICATIONS
Type
NPR / NPS
NHR / NHS
Resistance Range
0.02 Ohms to 100kOhms
0.02 Ohms to 15kOhms
Power rating
free air 70°C
with heatsink
1.5 W
30 W
1.5 W
50 W
Thermal Resistance Rthj-c
3.5 K/W
2.1 K/W
Tolerances
from 0.02 Ohms
from 1.0 Ohms
2% / 5%
1% / 2% / 5%
Stability
0.5%
Temperature Coefficient
0.02 to 0.049 Ohms
±600 ppm/°C
±300 ppm/°C
±100 ppm/°C
0.05 to 0.099 Ohms
0.1 Ohms to 100 kOhms
upon request ±50 ppm/°C
Voltage Proof
2.0 kVDC
1.5 kVDC
Max. Voltage
depending on resistance value
10000
1000
100
10
1
2 Ohm
10 Ohm 100 Ohm 1 kOhm
5 kOhm 10 kOhm 100 kOhm
Operating Temperature Range
Resistor Material
Substrate
-40 to 155°C
Thick Film
Al2O3
Housing
Epoxy or PPS
Connector Material
Terminals
Cu tinned
2
Max. Torque
T220: 1 Nm
T221: 0.8 Nm
Riedon Inc.
07/13
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
Page 80
RIEDON [ RIEDON POWERTRON ]
