HS50 5R J Aluminium Housed Axial Wire Wound Panel Mount Resistor. 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.