variable resistorsA C-shaped ceramic is wound with copper or chromium-alloy wire as a resistance element. Except for the slide contact surface, the entire component is coated with a high-temperature, non-flammable resin. After cooling and drying, insulation is applied through a high-temperature process. Then, a centered rotating adjuster component is installed, which slides along the resistance element and varies the resistance to the desired value. The scope of the application includes educational modeling, load simulations, industrial machinery RPM adjustment, voltage and current adjustment, instruments, and automated control installations. For custom specifications, please contact us to discuss the details.

FVR Type 25W - 100W

Wattage
Rating
Dimensions(mm) Resistance
Range(Ω)
A B C D E F G H I J K Weight
25W 2.5 3.2 22 3/8" 6x12 42 50 50 11 5 10 74/g 5Ω-2.5KΩ
50W 4.2 4.2 28 3/8" 6x12 64 60 70 11 8 14 160/g 7Ω-3.5KΩ
100W 4.2 4.2 42 3/8" 6x12 85 75 90 11 8 14 372/g 10Ω-5KΩ
Notice: All dimensions might be changed or modified, please refer to last updating specification.

Performance Specifications
Test Item Test Methods Characteristics
Resistance tolerance JIS-C-5261 5-1 Resistance tolerance ±10%
Insulation resistance JIS-C-5261 6-1 500VDC 100MΩ min
Dielectric withstanding voltage JIS-C-5261 7-1 1000VDC 1 minute Between terminal and axis Free of appearance or structural irregularity
Terminal strength JIS-C-5261 6-5
3kg 30 seconds
Free of appearance or structural irregularity
ΔR/R≤ ±(2%+0.1Ω)
Vibration JIS-C-5261 6-6 1.5m/m 10 ~ 50 ~ 10 Hz/min X-Y-Z 2 hours each Free of appearance or structural irregularity
ΔR/R≤ ±(2%+0.1Ω)
Load life JIS-C-5261 7-7 Free of appearance or structural irregularity
ΔR/R≤ ±(5%+0.1Ω)
Full gyration angle JIS-C-5261 6-1 300± 5°C
Flame retardation 100% - 600% rated wattage load US UL-94 flame retardation test V-0 grade noncombustible
Remarks 1. Resistance and resistance tolerance were tested in-house with micro resistance meter.
2. Coating refers to UL-certified data provided by supplier.

How to Order
FVR 25W 2.5KR K
Product type Rated Wattage Resistance Value (Ω) Resistance Tolerance
FVR type 25W~100W (Ω) Indicates resistance value in units of ohms K (±10%)


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