Arcol, 3.9Ω 50W Wire Wound Chassis Mount Resistor HS50 3R9 J ±5%

From Arcol, the HS50 series of aluminium housed resistors are high power and offer a balance of pulse power capability and volume. These panel mount resistors are manufactured in line with IEC 115 and MIL 18546. These panel mount resistors are designed for direct heatsink mounting with thermal compound, which ensures maximum performance.

At high ambient temperature dissipation derates linearly to zero at +200 °C

To achieve the given maximum performance rating of this power resistor, it is designed to be directly mounted on an appropriately matched heatsink and mounted using a thermal compound.