FPR 2-T218

FPR 2-T218
Precision Shunt Resistors
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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
FPR 2-T218
Resistance Range
0.002 to 20 Ohms
Power rating
free air 70°C
with heatsink
2W
30 W
Thermal Resistance
2.5 °C/W
Tolerances
from 0.002 Ohms
from 0.01 Ohms
from 0.02 Ohms
1% / 2% / 5%
0.5% / 1% / 2% / 5%
0.25% / 0.5% / 1% / 2% / 5%
Stability (1000h)
0.1% / 0.2% / 0.5%
(depends on stress)
Temperature Coefficient
R ≤ 0.005 Ohm
R ≤ 0.01 Ohm
R ≤ 0.05 Ohm
R ≤ 0.5 Ohm
R ˃ 0.5 Ohm
±200
±150
±100
±50
±30
Voltage Proof
300 VDC
Thermal EMF
< 0.1µV/°C
Operating Temperature Range
-40°C to 130°C
Resistor Material
CuNiMn-Foil
Substrate
anodized aluminium
Housing
PPS
Connector Material
Cu / Tinned
Terminals
2
Max. Torque
1 Nm
Derating
Power ( % from
nominal power)
120
Power Rating Notes 0.5%
100
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 :
0.2%
80
0.1%
60
RHH =
40
20
Where:
0
25
50
85
100
115
130
Temperature of the backplate (°C)
TMAX - (P * RHR) - TA
P
RθH = Thermal Resistance of Heatsink ( K/W )
RθR = Thermal Resistance of Resistor ( K/W )
TMAX = Maximum Temperature of Resistor
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
FPR 2-T218
Precision Shunt Resistors
SPECIFICATIONS (continued)
Temperature Coefficient
Table A
250
4000
2000
Limit 2
∆R/R (ppm)
-2000
-4000
Nominal ∆R/R
-6000
-8000
TCR - Shift (ppm/°C)
200
0
150
100
50
-10000
Limit 1
-12000
0
-40
-20
0
20
40
60
80
100
120
140
2
5
10
20
50
100
200
Resistance Value (mOhm)
Temperature (°C)
DIMENSIONS
Riedon Inc.
06/15
300 Cypress Avenue
Dimension
mm / tol.
inches / tol.
A
21.10 ± 0.2
0.83 ± 0.008
A - Contact
21.10 (0.83)
B - Contact
B
15.50 ± 0.2
0.61 ± 0.008
15.50 (0.61)
C
4.90 ± 0.1
0.19 ± 0.004
4.90 (0.19)
D
4.00 ± 0.1
0.16 ± 0.004
4.00 (0.16)
E
12.60 ± 0.2
0.50 ± 0.008
12.60 (0.50)
03.2 (0.13)
F
Ø3.2 ± 0.1
0.13 ± 0.004
G
2.95 ± 0.1
0.12 ± 0.004
H
17.75 ± 0.2
0.70 ± 0.008
C - Contact
2.95 (0.12)
17.65 (0.69)
16.85 (0.66) 17.75 (0.70)
I
10.16 ± 0.2
0.40 ± 0.008
10.16 (0.40)
J
1.40 ± 0.1
0.06 ± 0.004
1.40 (0.06)
K
3.00 ± 0.1
0.12 ± 0.004
L
14.50 ± 0.2
0.57 ± 0.008
7.70 (0.30)
5.00 (0.20)
14.50 (0.57)
M
2.80 ± 0.1
0.11 ± 0.004
2.70 (0.11)
1.90 (0.07)
2.80 (0.11)
N
1.65 ± 0.1
0.06 ± 0.004
1.65 (0.06)
O
4.60 ± 0.1
0.18 ± 0.004
4.60 (0.18)
P
6.15 ± 0.2
0.24 ± 0.008
6.15 (0.24)
Q
0.80 ± 0.1
0.03 ± 0.004
0.80 (0.03)
R
2.00 ± 0.1
0.08 ± 0.004
2.00 (0.08)
Alhambra CA 91801
www.riedon.com
3.00 (0.12)
(626) 284-9901
(626) 284-1704