FPR2A-0R5F1 Datasheet, PDF (1/2 Pages) Riedon Powertron – Precision Shunt Resistors

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 Coefficient
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 ˃ 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: R_θH = Thermal Resistance of Heatsink ( K/W )
R_θR = Thermal Resistance of Resistor ( K/W )
50
85
100
115
130
T_MAX = Maximum Temperature of Resistor
Temperature of the backplate (°C)
T_A = 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
[phone]
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