电力型线绕可变电阻器 variable power resistor
VR 系列电阻器
於C 形瓷件骨架上,缠绕铜镍合金或镍铬合金之电阻线,除滑动接触表面外,均以耐高温之不燃性树脂涂装补覆,待阴乾後由高温处理固定绝缘,并配装中心转动调整之零件,由转轴带动碳刷於电阻线上滑动变化,而获得需求适当之阻值。适用於教学测试,模拟负载,产业机械转速调节,电压电流调节,仪器设备,自动控制装置...等。
FVR Type 25W - 100W
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功率 尺寸 (mm) 阻值范围
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
注意: 产品尺寸可能变更,请以实际产品尺寸或本公司最新规格书为准。

规 格
项目 试验方法 性能
电阻值容许公差 JIS-C-5261 5-1 Resistance tolerance ±10%
绝缘抵抗 JIS-C-5261 6-1 500VDC 100MΩ min
耐电压 JIS-C-5261 7-1 1000VDC 1 minute Between terminal and axis Free of appearance or structural irregularity
端子强度 JIS-C-5261 6-5
3kg 30 seconds
Free of appearance or structural irregularity
ΔR/R ≤ ±(2%+0.1Ω)
耐振性 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)
耐久性 JIS-C-5261 7-7 Free of appearance or structural irregularity
ΔR/R ≤ ±(5%+0.1Ω)
全回转角度 JIS-C-5261 6-1 300±5°C
难燃性 100% - 600% rated power load US UL-94 flame retardation test V-0 grade noncombustible
备注 1. Resistance and resistance tolerance were tested in-house with micro resistance meter.
2. Resistor coating refers to UL-certified data provided by supplier.

成 品 识 别 码
FVR 25W 2.5KR K
成品类别 定格电力 阻抗值 阻值公差
FVR type 25W~100W (Ω) Indicates resistance value in units of ohms K (±10%)

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