RH/FRH 15-50W Series Metal Clad Resistors
Aluminium housed, chassis mounted
High precision tolerances down to ±0.1%
100% RoHS compliant
Wide resistance range: 0.1Ω to 2MΩ
What are the RH/FRH 15-50W Metal Clad Resistors?
The RH and FRH series are aluminium-housed, chassis-mounted metal clad resistors offering an exceptionally wide resistance range from 0.1Ω to 2MΩ, with precision tolerances as tight as ±0.1%. Available in power ratings of 15W, 20W, and 50W, and with low TCR options (40, 50, 100, 200 ppm/°C), they are fully RoHS compliant and suited for precision instrumentation, industrial control, and measurement applications requiring stable, low-drift resistance.
RH/FRH 15-50W Metal Clad Resistors Specifications
A practical overview for engineers and procurement teams evaluating resistive solutions.
Model: RH, FRH
Resistor type: Metal clad resistor
Description: Aluminum housed, chassis mounted
Power Rating: 15W, 20W, 50W
Resistance (Ω): 0.1~2M
Tolerance (%): ±0.1, ±0.5, ±1, ±5, ±10
TCR (ppm/C): 40, 50, 100, 200
Applications of the RH/FRH 15-50W Metal Clad Resistors
Where RARA metal clad resistors are deployed in the field.
-Precision voltage dividers in instrumentation
-Bias resistors in precision amplifiers
-Current sensing in measurement equipment
-Pull-up / pull-down resistors in signal conditioning
-Feedback networks in precision DC-DC converters
-Meter shunts in calibration instruments
-Reference resistors in bridge circuits
-Load resistors in industrial test equipment
-Bleed resistors in precision power supplies
-Inrush limiting in low-power control circuits
Related Products of the RH/FRH 15-50W Metal Clad Resistors
Model: IRN, ULN, IRF, ULF
Resistor type: Metal clad resistor
Description: UL, Flat profile,aluminum housed, chassis mounted
Power Rating: 50W-500W
Resistance (Ω): 1~5.78k
Tolerance (%): ±0.5, ±1, ±2, ±5, ±10
TCR (ppm/C): 260 Max.
Model: RH10C
Resistor type: Metal clad resistor
Description: Metal clad cement encased
Power Rating: 10W
Resistance (Ω): 0.1~6k
Tolerance (%): ±0.5, ±1, ±2, ±5
TCR (ppm/C): 260 Max.
Model: URH
Resistor type: Metal clad resistor
Description: UL Aluminum housed, chassis mounted
Power Rating: 20W-100W
Resistance (Ω): 0.1~50k
Tolerance (%): ±1, ±2, ±5
TCR (ppm/C): 30, 50, 100, 200
Model: IRS
Resistor type: Metal clad resistor
Description: Slim profile, aluminum housed, chassis mounted
Power Rating: 30W, 50W
Resistance (Ω): 1~500
Tolerance (%): ±0.5, ±1, ±2, ±5, ±10
TCR (ppm/C): 260 Max.
Why Choose RARA Metal Clad Resistors
What sets RARA apart for engineers and procurement managers in industrial and automotive markets.
01
Automotive Qualified
AEC-Q200 tested models and IATF 16949 certification for EV and automotive powertrain applications. Trusted by GM Korea, Tesla, and Proterra.
02
STEP Files Included
3D STEP files available for core models, supporting ECAD/MCAD integration and thermal management simulation in your design workflow.
03
Wide Power Range
A single product family spanning 10W to 8.5kW means you can source across a project from one qualified, certified supplier.
04
Global Track Record
Deployed by Siemens, Rockwell, Toshiba, Schneider Electric, LG, and Hanwha — a customer list built on decades of consistent performance.
