Series SUPT400 High Power Resistor
Derating
Derating (thermal resist.) SUPT400: 5.65W/K (0.18 K/W)
Power rating: 400 W at 85°C bottom case temperature
This value is only applicable when using a thermal conduction to the heat sink Rth-cs<0.025K/W. This value can be obtained by using a thermal transfer compound with a heat conductivity of at least 1 W/mK. The flatness of the cooling plate must be better than 0.05 mm overall. Surface roughness should not exceed 6.4 μm.
Dimensions in millimeters
Specifications
| Resistance ranges | 0.5 Ω ≤ 1M Ω |
| Resistance Tolerance | ±5% to ± 10 %±1 % to ±2 % on special request for limited ohmic values with the reduction of the max. power / pulse rating (ask for details) |
| Temperature Coefficient | ±150PPM/℃ lower TCR on special request for limited ohmic values |
| Power rating | 400 W at 85°C bottom case temperature |
| Short time overload | 480 W at 70°C for 10sec., ΔR = 0.4% max. |
| Maximum operating voltage | 5,000 V DC = 3.500 V AC RMS (50 Hz) higher voltage on request, not exceeding max. power |
| Electric strength voltage | 7 kVrms / 50 Hz / 500 VA, test time 1 min between terminal und case (up to 12 kVrms on request)voltages above 10 kVrms are tested at DC equivalent to avoid pre damage of component |
| Insulation resistance | > 10 GΩ at 1,000 V |
| Single shot voltage | up to 12 kV norm wave (1.5/50 μsec) |
| Inductance | ≤ 80 nH (typical), measuring frequency 10 kHz |
| Capacity/mass | ≤ 110 pF (typical), measuring frequency 10 kHz |
| Capacity/parallel | ≤ 40 pF (typical), measuring frequency 10 kHz |
| Operating temperature | -55°C to +155°C |
| Mounting - torque for contacts | 1.8 Nm to 2 Nm |
| Mounting - torque | 1.6 Nm to 1.8 Nm M4 screws |
| Weight | ~49.5g |
Ordering Information
| Type | ohmic | ValueTOL |
| SUP400 | 30K | 5% |
Company Profile
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