| PartNumber | W21-680RJI | W21-68RJI | W21-6K8JI |
| Description | Wirewound Resistors - Through Hole 3Watt 680 ohm 5% | Wirewound Resistors - Through Hole 3Watt 68 ohm 5% | Wirewound Resistors - Through Hole 3Watt 6.8K ohm 5% |
| Manufacturer | TT Electronics | TT Electronics/Welwyn | TT Electronics/Welwyn |
| Product Category | Wirewound Resistors - Through Hole | Through Hole Resistors | Through Hole Resistors |
| RoHS | Y | - | - |
| Series | W20 | W20 | W20 |
| Resistance | 680 Ohms | - | - |
| Power Rating | 3 W | - | - |
| Tolerance | 5 % | ±5% | ±5% |
| Temperature Coefficient | 75 PPM / C | ±75ppm/°C | ±75ppm/°C |
| Voltage Rating | 100 V | - | - |
| Minimum Operating Temperature | - 55 C | - | - |
| Maximum Operating Temperature | + 350 C | - | - |
| Diameter | 5.6 mm | - | - |
| Length | 12.7 mm | - | - |
| Termination Style | Axial | - | - |
| Packaging | Ammo Pack | Cut Tape (CT) Alternate Packaging | Cut Tape (CT) Alternate Packaging |
| Features | Coated Resistors, Vitreous Enamel Coated | Flame Proof, Safety | Flame Proof, Safety |
| Operating Temperature Range | - 55 C to + 350 C | - | - |
| Product | Power Resistors Wirewound Vitreous Enamel | - | - |
| Technology | Wirewound | - | - |
| Brand | IRC / TT Electronics | - | - |
| Mounting Style | PCB Mount | - | - |
| Lead Diameter | 0.8 mm | - | - |
| Product Type | Wirewound Resistors | - | - |
| Factory Pack Quantity | 1000 | - | - |
| Subcategory | Resistors | - | - |
| Unit Weight | 0.035274 oz | - | - |
| Height | - | - | - |
| Package Case | - | Axial | Axial |
| Operating Temperature | - | -55°C ~ 200°C | -55°C ~ 200°C |
| Size Dimension | - | 0.220" Dia x 0.500" L (5.60mm x 12.70mm) | 0.220" Dia x 0.500" L (5.60mm x 12.70mm) |
| Supplier Device Package | - | Axial | Axial |
| Power Watts | - | 3W | 3W |
| Resistance Ohms | - | 68 | 6.8k |
| Number of Terminations | - | 2 | 2 |
| Composition | - | Wirewound | Wirewound |
| Failure Rate | - | - | - |