Riedon FNR2E-0R02F1 Foil power resistor Datasheet

FPR FNR 2-T227 4-T227
In Stock
At Riedon
Foil Power Resistors
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Resistances from 0.001Ohm to 100Ohms
Power Rating to 80Watt
Resistance Tolerances to ±0.1%
TCR to ±15ppm/°C
Load Stability to 0.1%
SPECIFICATIONS
Type
Terminals
Resistance Range
FPR 2-T227
FPR 4-T227
FNR 2-T227
FNR 4-T227
2
4
(kelvin connection)
2
4
(kelvin connection)
0.001 to 100 Ohms
0.01 to 100 Ohms
0.01 to 100 Ohms
Power Rating
(with heatsink)
60W
Thermal Resistance Rthj-c
0.001 to 100 Ohms
80W
1.3 K/W
1.0 K/W
Tolerances
(depends on resistance)
0.1% / 1% / 2% / 5%
(others upon request)
1
Stability
0.1% / 0.2% / 0.5%
(depends on stress)
Temperature Coefficient
±15 ppm/K (20 to 60°C)
from R < 0.02 Ohms ±20 ppm/K (20 to 60°C)
FPR 2-T227 / FNR 2-T227 TK Shift depends from
resistance value (see graph next page)
Voltage Proof
1.5 kV DC ( higher upon request )
Thermal EMF
< 1 µV/K
Max. Current
45A (85A on request)
50A (100A on request)
Operating Temperature
-40°C to 130°C
Resistor Material
Metalfoil CuNiMn (DIN 17471)
Substrate
Al2O3
Housing
AlN
Epoxy
Connector Material
Cu / tinned or nickel plated
Max. Torque
backplate: 1.5Nm
terminals: 1.3 Nm
1
Please inquire for low ohm values
Ordering Information
Part Description: Part Type - Resistance - Tolerance
FPR 2-T227 1.1 Ohms 1%
Riedon Inc.
300 Cypress Avenue
06/13
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
www.riedon.com
FPR FNR 2-T227 4-T227
Foil Power Resistors
SPECIFICATIONS (continued)
Temperature Coefficient
4000
2000
+15ppm/°C
200
TCR - Shift (ppm/K)
∆R/R (ppm)
table A
250
0
150
-15ppm/°C
-2000
Nominal ∆R/R
-6000
-8000
100
Limit 2 (3σ)
-4000
50
Limit 1 (3σ)
-40
-20
0
20
40
60
80
100
120
0
140
2
Temperature (°C)
5
10
20
50
100
200
Resistance Value (mOhm)
Derating and Stability
Power Rating Notes -
Power ( % from
nominal power)
120
100
0.5%
80
0.2%
60
0.1%
The FPR/FNR Series Foil Resistors must be attached to a suitable heatsink. The maximum internal resistor temperature is
130°C for a 0.5% stability part.
To specify an appropriate heatsink use the following formula :
RθH = TMAX - ( P x RθR ) - TA
P
40
20
Where:
0
25
50
85
100
115
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 )
130
Tem perature of the backplate (°C)
Dimensions and Attachment Variations
FPR/FNR 2-T227
FPR/FNR 4-T227
Riedon Inc.
300 Cypress Avenue
06/13
Dimension
mm
tol.
(±mm)
inches
tol.
(±inches)
A
26
0.5
1.02
0.020
B
38
0.5
1.50
0.020
C
12.7
0.2
0.50
0.008
D
4
0.2
0.16
0.008
E
30
0.2
1.18
0.008
F
15
0.2
0.59
0.008
G
4.1
0.2
0.16
0.008
H
10
0.2
0.39
0.008
I
8
0.2
0.31
0.008
J
4
0.2
0.16
0.008
K
2
0.2
0.08
0.008
L
0.8
0.1
0.03
0.004
M
M4
M4
N
10
0.2
0.39
0.008
O
11.9
0.2
0.47
0.008
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
www.riedon.com
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