FNR-20K821B

是以氧化锌為主要原料制造的半導體電子陶瓷元件，其電阻值隨施加電壓的改變而呈非綫性變化，由于電阻值對電壓變化十分敏感，故稱壓敏電阻器或突波吸收器。 Zinc Oxide Varistor are non-linear resistors utilizing semiconductor electronic ceramic element mainly composed of zinc oxide and its non-linear resistance change as a function of the applied voltage. It's called Varistor or Surge absorbers.

• 電壓範圍寬（18V~1.8kV）Widely voltage range 18 V~1.8 KV
• 反應速度快(≤25 ns) Fast response to the rapidly increase Voltage (25 ns)
• 非綫性指數大 Excellent non-linearity coefficient
• 無極性 Symmetric V - l characteristics
• 耐浪涌電流大(2000A/cm²) Great withstanding surge current (2000A/cm²)
• 無續流 No follow-on current
• 壽命長 Long life
• Meet ROHS, REACH, HF requirements of environmental protection

• 高能系列産品用于要求具備高峰值浪涌额定電流和高能量吸收能力的應用。
• 高工作温度産品適用于持續高温工作的場合。