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FPR2A-1RF1 Datasheet, PDF (1/2 Pages) Riedon Powertron – Precision Shunt Resistors | |||
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FPR 2-T218
Precision Shunt Resistors
⢠Resistances from 0.002 Ohm to 20 Ohms
⢠Power Rating to 30Watt
⢠Resistance Tolerances to ±0.25%
⢠TCR to ±30 ppm/°C
⢠Load Stability to 0.1%
⢠TO-218 (TO-247) Housing
SPECIFICATIONS
Type
Resistance Range
Power rating
free air 70°C
with heatsink
Thermal Resistance
Tolerances
from 0.002 Ohms
from 0.01 Ohms
from 0.02 Ohms
Stability (1000h)
Temperature Coefï¬cient
Voltage Proof
Thermal EMF
Operating Temperature Range
Resistor Material
Substrate
Housing
Connector Material
Terminals
Max. Torque
FPR 2-T218
0.002 to 20 Ohms
2W
30 W
2.5 °C/W
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 ⤠0.01 Ohm
R ⤠0.05 Ohm
R ⤠0.5 Ohm
±300
±100
±50
300 VDC
< 0.1µV/°C
-40°C to 130°C
CuNiMn-Foil
anodized aluminium
PPS
Cu / Tinned
2
1 Nm
Derating
R Ë 0.5 Ohm
±30
120
100
0.5%
80
0.2%
60
0.1%
40
Power Rating Notes -
The FPR Series Resistors must be attached to a suitable heatsink.
The maximum internal resistor temperature is 130°C.
To specify an appropriate heatsink use the following formula :
RHH
=
TMAX
- (P * RHR) -
P
TA
20
0
25
Where: RθH = Thermal Resistance of Heatsink ( K/W )
RθR = Thermal Resistance of Resistor ( K/W )
50
85
100
115
130
TMAX = Maximum Temperature of Resistor
Temperature of the backplate (°C)
TA = Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
Ordering Information
Part Description: Part Type - Resistance - Contact - Tolerance
FPR 2-T218 0.068 Ohms C 0.5%
Riedon Inc.
06/15
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
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