VARISTOR JVR20N471K

Descriere

Features:
• Used as voltage-dependent resistors (VDR's) to protect electronic devices
• They protect against overload build-up and protect valuable equipment from power surge damage
• Surge voltages are absorbed in the varistor

Selection Criteria:
• The maximum operating voltage must be lower than the varistor voltage
• The capacity of the varistor (energy absorption) should match the energy content of the varistor

Technical Specifications :
• Material : Zinc Oxide (ZnO)
• Storage Temperature : -40...+125°C
• Operating Temperature, Max. : +85°C
• Working Surface Temperature, Max. : +115°C
• Response Time, Max. : 25ns
• Voltage/Temperature Coefficient : -0,05%/°C
• Insulation Resistance 500V : >1000MW

• URMS [V AC] : 300
• URMS [V DC] : 385
• UV [V] : 470
• DUV [%] : ±10
• US [V] : 775
URMS = Max. Operating Voltage ,
UV = Varistor Voltage at 1 mA,
DUV = Tolerance of Varistor Voltage,
US = Clamping Voltage

• IMax.1 Impulse [A] : 6500
• IMax. 2 Impulse [A] : 4000
• PRated [W] : 1,0
• E [J] : 280,0
• T [mm] : 6,9
IMax.= Max. Surge Current (8 x 20µs),
PRated = Rated Power,
E = Energy Absorption, 2 ms,
T = Disc Thickness