FPR 2-T218
Powertron
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Resistances from 0.002Ohm to 50Ohms
Power Rating to 30Watt
Resistance Tolerances to ±0.25%
TCR to ±15ppm/K
Load Stability to 0.1%
TO-218 (TO-247) Housing
SPECIFICATIONS
Type
Resistance Range
Power rating
free air 70°C
with heatsink
Thermal Resistance Rthj-c
Tolerances
from 0.002 Ohms
from 0.01 Ohms
from 0.02 Ohms
Stability
Temperature Coefficient
Voltage Proof
Thermal EMF
Operating Temperature Range
Resistor Material
Substrate
Housing
Connector Material
Terminals
Max. Torque
1% / 2% / 5%
0.5% / 1% / 2% / 5%
0.25% / 0.5% / 1% / 2% / 5%
0.1% / 0.2% / 0.5%
(depends on stress)
R > 0.2 Ohms ±15ppm/K (20 to 60°C)
R ≤ 0.2 Ohms TCR see table A next page
300 VDC
< 0.1µV/K
-40 to 130°C
CuNiMn-Foil
anodized aluminium
PPS
Cu tinned
2
1 Nm
FPR 2-T218
0.002 to 50 Ohms
2W
30 W
2.5 K/W
Derating
Power Rating Notes -
The FPR Series Resistors must be attached to a suitable heat-
sink. The maximum internal resistor temperature is 130°C.
To specify an appropriate heatsink use the following formula :
R
qH
= T
MAX
- ( P x R
qR
) - T
A
P
Where:
R
qH
= Thermal Resistance of Heatsink ( K/W )
R
qR
= Thermal Resistance of Resistor ( K/W )
T
MAX
= Maximum Temperature of Resistor
T
A
= Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
Ordering Information
Part Number - Resistance - Contact - Tolerance
FPR 2-T218 0.068 Ohms A 0.5%
Document Number: 64200
Revision: 20-09-10
For technical questions, contact:
powertron@vishaypg.com
www.powertron.de
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Document No.: 63999
Revision: 27-Apr-11
www.vishaypg.com
1
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