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: >1000MOhm
• Max. Operating Voltage: 250V AC
• Max. Operating Voltage: 320V DC
• Varistor Voltage at 1 mA: 390V
• Tolerance of Varistor Voltage: ±10%
• Clamping Voltage: 650V
• Max. Surge Current (8 x 20µs) - 1 impulse: 6500A
• Max. Surge Current (8 x 20µs) - 2 impulse: 4000A
• Rated Power: 1.0W
• Energy Absorption, 2 ms: 240.0J
• Disc Thickness: 6.4mm
Dimensions
• Dmax.: 23mm
• Ød: 1.0±0.05mm
• F: 10.0±1mm
• Hmax.: 28mm
• H1max: 5mm
• Lmin: 24mm
• Tmax.: s.o.mm
