Pluggable Fibrecore Silicone Coated Resistors (PGR) PCB Pluggable Resistor. High/Low Profile Terminals. Fibre-core Former. Low Cost Design. High Surge Versions Available. Uncoated Versions Available. PEC Resistors are RoHS compliant. https://peccomponents.com/product/6-pluggable-fibrecore-silicone-coated-resistors-pgr?search=