FPR FNR 4-T227
FEATURES
•
•
•
•
•
Resistances from 0.001Ohm to 50Ohms
Power Rating to 80Watt
Resistance Tolerances to ±0.1%
TCR to ±25ppm/K
Load Stability to 0.1%
TABLE 1—SPECIFICATIONS
TYPE
Resistance Range
Power Rating
Tolerances
from 0.001
from 0.020
Thermal Resistance
Stability (1000h)
Temperature Coefficient
Standard (Q)
Extended Temperature Range (R)
Voltage Proof
Maximum Current
Thermal EMF
Operating Temperature Range
Resistor Material
Substrate
Backplate
Housing
Connector Material
Terminals
Max. Torque
With heatsink
60 W
FPR 4-T227
0.001 to 50 Ohms
80 W
FNR 4-T227
1% / 2% / 5%
0.1% / 0.25% / 0.5% / 1% / 2% / 5%
(others upon request)
1.3 K/W
1.0 K/W
0.1% / 0.2% / 0.5%
(depends on stress)
±25 ppm/K (20 to 60°C)
±50 ppm/K (-40 to 130°C)
other specifications upon request
1.5 kV DC
50 A contact G
85 A contact I
< 1 µV/K
-40°C to 130°C
CuNiMn-Foil
Al
2
O
3
Copper / Nickel-plated
Epoxy
Cu / tinned
4 (Standard contact G - bended)
backplate: 1.5Nm
terminals: 1.3 Nm
AlN
ORDERING INFORMATION
Part Number - Resistance - Contact - Tolerance - TCR
FPR 4-T227 0R010 I 1% Q
Document No.: 64240
Revision: 15-06-2016
For technical questions,
contact
powertron@vpgsensors.com
www.powertron.de
1
FPR FNR 4-T227
FIGURE 1—TEMPERATURE COEFFICIENT
2000
0
Limit 2
-2000
∆R/R
(ppm)
-4000
Nominal
∆R/R
-6000
-8000
Limit 1
-10000
-40
-20
0
20
40
60
80
100
120
140
Temperature (°C)
FIGURE 2—DERATING
Power Rating Notes -
120
Power ( % from
nominal power)
100
80
60
40
20
0
25
0.5%
0.2%
0.1%
The FPR/FNR Series Foil Resistors must be attached to a suit-
able heatsink. The maximum internal resistor temperature is
130°C for a 0.5% stability part.
To specify an appropriate heatsink use the following formula :
R
θH
= T
MAX
- ( P x R
θR
) - T
A
P
Where:
50
85
100
115
130
Tem perature of the backplate (°C)
R
θ
H
= Thermal Resistance of Heatsink ( K/W )
R
θ
R
= Thermal Resistance of Resistor ( K/W )
T
MAX
= Maximum Temperature of Resistor
T
A
= Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
FIGURE 3—DIMENSIONS
in mm (inches)
Dimension
A
±0.5 (±0.020)
B
±0.5 (±0.020)
C
±0.2 (±0.008)
D
±0.2 (±0.008)
E
±0.2 (±0.008)
F
±0.2 (±0.008)
G
±0.2 (±0.008)
H
±0.2 (±0.008)
I
±0.2 (±0.008)
J
±0.2 (±0.008)
K
±0.2 (±0.008)
L
±0.1 (±0.004)
M
N
±0.2 (±0.008)
O
±0.2 (±0.008)
mm
26 (1.02)
38 (1.50)
12.7 (0.50)
4 (0.16)
30 (1.18)
15 (0.59)
4.1 (0.16)
10 (0.39)
8 (0.31)
4 (0.16)
2 (0.08)
0.8 (0.03)
M4
10 (0.39)
11.9 (0.47)
www.powertron.de
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For technical questions,
contact
powertron@vpgsensors.com
Document No.: 64240
Revision: 15-06-2016
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Vishay Precision Group, Inc.
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Revision: 15-Jul-2014
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