FHR 2-3025 3818
FHR 4-3825 3825H 4618
Precision Shunt Resistors
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Resistances from 0.001Ohm to 100Ohms
Power Rating to 50Watt
Resistance Tolerances to ±0.1%
TCR to ±10ppm/K
Very Low Inductance
SPECIFICATIONS
Type
FHR 2-3025
FHR 2-3818
0.010 to 100Ohms
3 W
40 W
2.0 K/W
FHR 4-3825
FHR 4-3525H
FHR 4-4618
0.001 to 100Ohms
3 W
5 W
50 W
1.6 K/W
1% / 2% / 5%
0.5% / 1% / 2% / 5%
0.1% / 0.25% / 0.5% / 1% / 2% / 5%
0.1% / 0.25% / 0.5% / 1% / 2% / 5%
0.1% / 0.2% / 0.5%
(depends on stress)
Resistance Range
Power rating
free air 70°C
for 3825H
with heatsink
Thermal Resistance Rthj-c
Tolerances
from 0R001
from 0R005
from 0R01
from 0R02
Stability
Temperature Coefficient
Standard
Option 1
0.5% / 1% / 2% / 5%
0.25% / 0.5% / 1% / 2% / 5%
±15ppm/K (20 to 60°C)
R ≤ 0R2 TCR see table A next page
±15ppm/K (20 to 60°C)
±25ppm/K (20 to 60°C) for contact F
±10ppm/K (20 to 60°C)
(only contact A and K)
Max. Current
Voltage Proof
Thermal EMF
Operating Temperature Range
Resistor Material
Substrate
Housing
Connector Material
Terminals
Max. torque
2
150 A / 200 A for contact F
500 VDC
< 0.1µV/K
-40 to 130°C
CuNiMn-Foil
anodized aluminium
Epoxy
Cu tinned
4
1 Nm
Ordering Information
Part Number - Resistance - Contact - Tolerance
FHR 4-4618 0.050 Ohms A 1%
Powertron GmbH
Potsdamer Strasse 18a D-14513 Teltow
+49 (0)3328 3530-0
A Riedon Company
www.powertron.de
+49 (0)3328 3530-15
Page 18
rev. 03/2006A
RIEDON [ RIEDON POWERTRON ]
