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| PartNumber | CMF551K2100FKEK39 | CMF551K2100FKEK | CMF551K2100FKEA |
| Description | Metal Film Resistors - Through Hole | Metal Film Resistors - Through Hole 1/4watt 1.21Kohms 1% | Res Metal Film 1.21K Ohm 1% 0.5W(1/2W) ±100ppm/C Epoxy AXL T/R |
| Manufacturer | Vishay | Vishay Dale | Vishay Dale |
| Product Category | Metal Film Resistors - Through Hole | Through Hole Resistors | Through Hole Resistors |
| Series | CMF Fusible | CMF | CMF |
| Resistance | 1.21 kOhms | - | - |
| Power Rating | 500 mW (1/2 W) | - | - |
| Tolerance | 1 % | ±1% | ±1% |
| Temperature Coefficient | 100 PPM / C | ±100ppm/°C | ±100ppm/°C |
| Minimum Operating Temperature | - 55 C | - | - |
| Maximum Operating Temperature | + 175 C | - | - |
| Voltage Rating | 250 V | - | - |
| Diameter | 2.29 mm | - | - |
| Length | 6.1 mm | - | - |
| Termination Style | Axial | - | - |
| Packaging | Bulk | Bulk Alternate Packaging | Tape & Reel (TR) Alternate Packaging |
| Product | Metal Film Resistors Controlled Temp Coefficient | - | - |
| Type | Metal Film Resistors, Industrial, Precision | - | - |
| Technology | Metal Film | - | - |
| Brand | Vishay / Dale | - | - |
| Mounting Style | PCB Mount | - | - |
| Product Type | Metal Film Resistors | - | - |
| Subcategory | Resistors | - | - |
| Unit Weight | 0.009877 oz | - | - |
| Height | - | - | - |
| Package Case | - | Axial | Axial |
| Operating Temperature | - | -55°C ~ 175°C | -55°C ~ 175°C |
| Features | - | Flame Retardant Coating, Moisture Resistant, Safety | Flame Retardant Coating, Moisture Resistant, Safety |
| Size Dimension | - | 0.090" Dia x 0.240" L (2.29mm x 6.10mm) | 0.090" Dia x 0.240" L (2.29mm x 6.10mm) |
| Supplier Device Package | - | Axial | Axial |
| Power Watts | - | 0.5W, 1/2W | 0.5W, 1/2W |
| Resistance Ohms | - | 1.21k | 1.21k |
| Number of Terminations | - | 2 | 2 |
| Composition | - | Metal Film | Metal Film |
| Failure Rate | - | - | - |