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| PartNumber | H4121RBCA | H4121RBYA | H4121RBDA |
| Description | Metal Film Resistors - Through Hole H4 121R 0.1% 50PPM | Metal Film Resistors - Through Hole H4 121R 0.1% 15PPM | Metal Film Resistors - Through Hole H4 121R 0.1% 25PPM |
| Manufacturer | TE Connectivity | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors |
| Product Category | Metal Film Resistors - Through Hole | Through Hole Resistors | Through Hole Resistors |
| Series | H4 | Holco, Holsworthy | Holco, Holsworthy |
| Resistance | 121 Ohms | - | - |
| Power Rating | 500 mW (1/2 W) | - | - |
| Tolerance | 0.1 % | ±0.1% | ±0.1% |
| Temperature Coefficient | 50 PPM / C | ±15ppm/°C | ±25ppm/°C |
| Minimum Operating Temperature | - 55 | - | - |
| Maximum Operating Temperature | + 155 C | - | - |
| Termination Style | Axial | - | - |
| Technology | Metal Film | - | - |
| Brand | TE Connectivity / Holsworthy | - | - |
| Mounting Style | PCB Mount | - | - |
| Product Type | Metal Film Resistors | - | - |
| Factory Pack Quantity | 250 | - | - |
| Subcategory | Resistors | - | - |
| Part # Aliases | 1879678-6 | - | - |
| Packaging | - | Bulk | Bulk |
| Height | - | - | - |
| Package Case | - | Axial | Axial |
| Operating Temperature | - | -55°C ~ 155°C | -55°C ~ 155°C |
| Features | - | Pulse Withstanding | Pulse Withstanding |
| Size Dimension | - | 0.146" Dia x 0.394" L (3.70mm x 10.00mm) | 0.146" Dia x 0.394" L (3.70mm x 10.00mm) |
| Supplier Device Package | - | Axial | Axial |
| Power Watts | - | 0.5W, 1/2W | 0.5W, 1/2W |
| Resistance Ohms | - | 121 | 121 |
| Number of Terminations | - | 2 | 2 |
| Composition | - | Metal Film | Metal Film |
| Failure Rate | - | - | - |