Aluminium Housed Power Resistors Type CFH Series Type CFH Series Characteristics Electrical The CFH is a high quality range of aluminium housed power resistors offering environmental protection to IP55, 6kV dielectric strength, 1.8kW power dissipation, and the ability to absorb electrical pulses of up to 24kJ. The use of advanced materials in the construction of this device enables operating temperatures of up to 450C giving very high power density. Dissipation @ 25C with Heatsink (Watts): Without Heatsink: With Water Cooled Heatsink (40C): Overload Rating (5s): Ohmic Value Min (Ohms): Max: Tolerance: Maximum Working Voltage (DC/ACrms) Volts: Insulation Resistance (Volts): Dielectric Strength (AC peak) Volts: Inductance (Henries): Standard Heatsink area (mm2): Thickness (mm): Protection Grade (IP): Mounting: Cable Length: Weight (g): Heat Dissipation: Key Features 2200W in a 72cm2 footprint * Unparalleled power density of 31W/cm2 Impressive Pulse Capability * Large active element can absorb up to 24kJ No Heatsink Required * Dissipates up to 950W in free air Slimline Casing * 30mm casing height for design flexibility CFH350 650 350 750 4000 0R5 10K CFH500 CFH750 CFH1100 850 1300 1800 500 750 1100 1000 1500 2200 5600 8000 12000 0R5 0R5 0R5 18K 27K 27K 5% Standard 1500 2500 3500 4000 >=10000 M 4500 standard and 6000 special 5-50 H at 7-70 H at 10-100 H at 20-200 H at 1000 Hz 1000 Hz 1000 Hz 1000 Hz 1600 1600 1600 1600 135 135 135 135 IP55 Vertically 300mm 460 670 920 1250 Although the use of proprietary heat sinks with lower thermal resistance is acceptable, up rating is not recommended. The use of proprietary heat sink compound to improve thermal conductivity is essential. Dimensions lf 30 A o6.2 82 2 71 95 Environmental Protection to IP55 * Reliable in the harshest conditions B Applications Braking Balancing Capacitor Charging & Discharging Crowbar Filter Power Supplies Electrical Machinery Inrush Limiting Literature No. 1773318 Issued: 02-06 Type CFH350 CFH500 CFH750 CFH1100 A 110 mm 160 mm 220 mm 320 mm B 60 mm 110 mm 140 mm 240 mm Dimensions are shown for reference purposes only. Dimensions are in millimetres unless otherwise specified. Specifications subject to change. www.tycoelectronics.com passives.tycoelectronics.com Aluminium Housed Power Resistors Type CFH Series Derating Curve Pulse Energy 2500 CFH1100 2000 Energy (kJ) Power (W) CFH750 1500 CFH500 1000 CFH350 500 0 0 100 200 300 Heatsink Temp. (degC) 400 500 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CFH1100 CFH750 CFH500 CFH350 0.2 1 10 100 Resistance (Ohms) 1000 Surface Temperature Rise 400 Temperature Rise (C) CFH350 CFH500 CFH750 CFH1100 350 300 250 200 0 200 400 600 800 1000 1200 Power (W) 1400 1600 1800 2000 How to Order CFH 750 680R J Common Part Type Resistance Value Tolerance 350 0.1ohm (100m) R10 CFH - Aluminium Housed Power Resistor 500 1 ohm (1000m) 1R0 1100 Literature No. 1773318 Issued: 02-06 Dimensions are shown for reference purposes only. J - 5% 750 Dimensions are in millimetres unless otherwise specified. 1K (1000) 1K0 Specifications subject to change. www.tycoelectronics.com passives.tycoelectronics.com