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FMCC EUROPE
Components and technical solutions for power electronics
Series UXP 800
800 Watt Resistor, US Patent # 5,355,281
800 Watt Resistor, US Patent # 5,355,281
| For variable speed drivers, power supplies, control devices, robotics, motor control and other power designs, the easy mounting fixture guarantees an autocalibrated pressure to the cooling plate of about 120 to 160 N. General Characteristics Electric support: • High alumina ceramic metallized with EBG ALTOX film on the bottom for better heat transfer and optimum discharge. Encapsulation: • Special resin filled epoxy casing with large creeping distance to mass, large air distance between the terminals and high insulation resistance (CTI 600). Resistance Element: • Special design for low inductance and capacitance values. The element employs our special METOXFILM which demonstrates stability while covering high wattage and pulse loading. Contacts: • Easy load connecting with M4 or M5 screws. • Connector height (M+N) available from 25 to 42mm. • Various sleeves for increased creeping distance up to 85mm or potted cable connections are available on special request • Materials in accordance with UL94-V0 | Specifications • Resistance Values: 0.5W to 1MW • Resistance Tolerance: ±5% to ±10% • Temperature Coefficient: ±150ppm/°C (others upon request) • Maximum Working Voltage: 5,000V DC, higher voltage on request, not exceeding max. power • Short Time Overload: 1,200W at 70°C for 10sec.,DR = 0.4% max. • Power Rating: 800W at 85°C Bottom case temperature. • Peak Current: up to 1500 Amp. depending on pulse length and frequency Please ask for details • Electric Strength Voltage: 6kVrms, 50Hz, up to 12kVrms on special request. • Single Shot Voltage: up to 12 kVNormwave (1.5/50 µsec) • Partial Discharge: 4KVrms, <10pC, up to 7kV on special request • Insulation Resistance: 10GW Min. at 500V • Creeping Distance: 42 mm Min. • Air Distance: 14 mm Minimum • Inductance: - 80 nH • Capacity/Mass: - 110 pF • Capacity/Parallel: - 40 pF • Operation Temperature: -55°C to +150°C • Max. Torque for Contacts: 2 Nm • Max. Torque for Mounting: 1.8 Nm M4 screws
|   Derating (thermal resist.) UXP 800: 8.73W/°K (0.115°K/W) Power Rating: 800W at 85°C bottom case temp.* *This value is only valid by using a thermal conduction to the heatsink Rth-cs<0.025°K/W. This value can be reached by using thermal transfer compound with a heat conductivity of 1W/mK. The flatness of the cooling plate must be better than 0.05mm overall. The roughness of the surface should not exceed 6.4µm. |
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