FHR 4-2321
Current Sense Resistors
• Excellent Long Term Stability
• 0.001 to 50 Ohm
• Power Rating to 40Watt
• Resistance Tolerances to ±0.1%
• TCR to ±15ppm/°C
• Very Low Inductive
• Foil Technology
Applications: Power Modules, Current Monitoring,
Frequency Converters, Switch Mode Power Supplies
SPECIFICATIONS
Type
FHR 4-2321
Resistance Range
0.001 to 50 Ohm
Power rating (70°C)
3 W
Power Rating with Heat Sink
40W
Tolerances:
from 0.001 Ohm
from 0.01 Ohm
0.5% / 1% / 2% / 5%
0.1% / 0.25% / 0.5% / 1% / 2% / 5%
Thermal Resistance
Stability (1000h)
2.0 C/W
0.1% / 0.2% / 0.5%
(depends on stress)
Temperature Coefficient
0.001 to 50 Ohms
Option 1 upon request for selected values
±25ppm/C (20 to 60°C)
±15ppm/C (20 to 60°C)
other specifications upon request
Insolation Resistance
Max. Current
300 VDC
150 A
Thermal EMF
< 1µV/K
Operating Temperature Range
Resistor Material
Substrate
-40 to 130°C
CuNiMn-Foil
Anodized aluminium
Cu / tinned
4
Connector Material
Terminals
Max Torque
0.8 Nm
Ordering Information
Part Description: Part Type - Resistance - Tolerance - TCR
FHR 4-2321 0.035 Ohms 0.25% 25ppm
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
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RIEDON [ RIEDON POWERTRON ]
