BE Services, Inc., a subsidiary of Bourns, Inc., has purchased substantially all of Riedon's assets. See Press Release

Precision Shunt Resistors

FHR 2-3025 3818

FHR 4-3825 3825H 4618 Series

Resistance from 0.001 Ohm to 100 Ohms

Power Rating to 50 Watts

Resistance Tolerances to ±0.1%

TCR to ±10ppm/K

Very Low Inductance

Type	FHR 2-3025 FHR 2-3818	FHR 4-3825 FHR 4-3825H FHR 4-4618
Resistance Range	0.01 to 100 Ohms	0.001 to 100 Ohms
Power Rating free air 70°C for 3825H with heatsink	3 W 40 W	3 W 5 W 50 W
Thermal Resistance Rthj-c	2.0 K/W	1.6 K/W
Tolerances from 0R001 from 0R005 from 0R01 from 0R02	0.5% / 1% / 2% / 5% 0.25% / 0.5% / 1% / 2% / 5%	1% / 2% / 5% 0.5% / 1% / 2% / 5% 0.1% / 0.25% / 0.5% / 1% / 2% / 5% 0.1% / 0.25% / 0.5% / 1% / 2% / 5%
Stability	0.1% / 0.2% / 0.5% (depends on stress)
Temperature Coefficient Standard Option 1	±15ppm/K (20 to 60°C) R ≤ 0R2 TCR (see Table A)	±15ppm/K (20 to 60°C) R ≤ 0R2 TCR (see Table A) ±10ppm/K (20 to 60°C) (only contact A and K)
Max. Current	50A - Contact K 150 A - Contact A 200 A - Contact F
Voltage Proof	500 VDC
Thermal EMF	< 0.1µV/K
Operating Temperature Range	-40 to 130°C
Resistor Material	CuNiMn-Foil
Substrate	anodized aluminum
Housing	Epoxy
Connector Material	Cu tinned
Terminals	2	4
Max. torque	1 Nm