| PartNumber | RJS300 | RJS 3-R SHORT | RJS 3-R STD |
| Description | Rheostats 50watt 300ohm 750V Std Shaft | Fuses with Leads (Through Hole) | Fuses with Leads (Through Hole) |
| Manufacturer | Ohmite | Cinch Connectivity Solutions | Cinch Connectivity Solutions |
| Product Category | Rheostats | Fuses with Leads (Through Hole) | Fuses with Leads (Through Hole) |
| RoHS | N | Y | Y |
| Series | RJS | RJS | - |
| Termination Style | Solder Lug | Radial | Radial |
| Resistance | 300 Ohms | - | - |
| Power Rating | 50 W | - | - |
| Tolerance | 10 % | - | - |
| Open Frame/Enclosed | Open Frame | - | - |
| Packaging | Bulk | Bulk | Bulk |
| Type | Wirewound Rheostat | - | - |
| Brand | Ohmite | Stratos / Cinch Connectivity Solutions | Stratos / Cinch Connectivity Solutions |
| Product Type | Rheostats | - | - |
| Factory Pack Quantity | 1 | 1000 | 2000 |
| Subcategory | Potentiometers, Trimmers & Rheostats | Fuses | Fuses |
| Taper | Linear | - | - |
| Product | - | Telecommunication Power Fuse | Telecommunication Power Fuse |
| Body Style | - | Cylindrical Leaded | Cylindrical Leaded |
| Diameter | - | 4.6 mm | 4.6 mm |
| Length | - | 19.3 mm | 19.3 mm |
| Part # Aliases | - | 0643R3000-12 | 0643R3000-02 |