FPR FNR 2-T227 4-T227
Foil Power Resistors
• Resistances from 0.001Ohm to 100Ohms
• Power Rating to 80Watt
• Resistance Tolerances to ±0.1%
• TCR to ±25ppm/°C
• Load Stability to 0.1%
SPECIFICATIONS
Type
FPR 2-T227
FPR 4-T227
FNR 2-T227
2
FNR 4-T227
Terminals
2
4
4
(kelvin connection)
(kelvin connection)
Resistance Range
0.01 to 100 Ohms
0.001 to 50 Ohms
0.01 to 100 Ohms
0.001 to 50 Ohms
Power Rating
(with heatsink)
60W
1.3 K/W
80W
1.0 K/W
Thermal Resistance Rthj-c
Tolerances
0.1%1 / 1% / 2% / 5%
(depends on resistance)
(others upon request)
Stability
0.1% / 0.2% / 0.5%
(depends on stress)
Temperature Coefficient ²
±25 ppm/K (20 to 60°C)
±50 ppm/K (- 40 to 130°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 )
< 1 µV/K
Thermal EMF
Max. Current
45A (85A on request)
50A (100A on request)
Operating Temperature
Resistor Material
Substrate
-40°C to 130°C
Metalfoil CuNiMn (DIN 17471)
Al2O3
AlN
Housing
Epoxy
Connector Material
Cu / tinned or nickel plated
Max. Torque
MSL Level
backplate: 1.5Nm
terminals: 1.3 Nm
MSL 1
1 Please inquire for low ohm values
2
Contact office for additinal TCR values
Ordering Information
Part Description: Part Type - Resistance - Tolerance
FPR 2-T227 1.1 Ohms 1%
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
© Riedon, Inc.
Revised: 201801_002
www.riedon.com
sales@riedon.com