| PartNumber | EXC-28BA121U | EXC-28CE121U | EXC-28BB121U |
| Description | Ferrite Beads Chip Bead Core Array 4 Element | Common Mode Chokes / Filters ARRAY 120Ohms NOISE FILTER | FERRITE BEAD 120 OHM 0804 4LN |
| Manufacturer | Panasonic | Panasonic | - |
| Product Category | Ferrite Beads | Common Mode Chokes / Filters | - |
| RoHS | Y | Y | - |
| Series | EXC | EXC | - |
| Product | Common Mode Filter Arrays | Common Mode Noise Filters | - |
| Termination Style | SMD/SMT | SMD/SMT | - |
| Impedance | 120 Ohms | 120 Ohms | - |
| Maximum DC Current | 100 mA | 140 mA | - |
| Tolerance | 25 % | 25 % | - |
| Maximum DC Resistance | 500 mOhms | 2 Ohms | - |
| Minimum Operating Temperature | - 25 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | Reel | - |
| Operating Temperature Range | - 25 C to + 85 C | - | - |
| Brand | Panasonic | Panasonic | - |
| Product Type | Ferrite Beads | Common Mode Chokes | - |
| Factory Pack Quantity | 5000 | 5000 | - |
| Subcategory | Ferrites | Inductors, Chokes & Coils | - |
| Termination | - | - | - |
| Package / Case | - | 0804 (2010 metric) | - |