Description
78279224151-IND; FERRITE BEADS 150ohm AT 100MHz 25% 5A 1LN (2220) WURTH 78279224151 — BOLTON SKU 67768.
About the 78279224151 Wurth Ferrite Bead, 150 ohm, 5A
Order code 78279224151 is a Würth Elektronik WE-MPSA EMI Multilayer Power Suppression Bead in the 2220 case size, built as a single-line high-current type. The datasheet gives an impedance of 150 Ω ±25% at 100 MHz, a maximum impedance of 230 Ω occurring at 700 MHz, a rated current of 5 A maximum referred to a 40 K temperature rise, and a DC resistance of 10 mΩ maximum at 20 °C, which is what allows the part to sit in a supply rail without significant series loss. Body dimensions are 5.59 mm × 5.08 mm with a height of 1.8 mm and a 0.76 mm termination band. The operating temperature range is −55 °C to +125 °C, with the ambient range referred to the rated current stated as −55 °C to +85 °C. The component is AEC-Q200 Grade 1 qualified, moisture sensitivity level 1, RoHS compliant and declared halogen free to JEDEC JS709B and IEC 61249-2-21.
Key specifications
| Manufacturer part number | 78279224151 |
|---|---|
| Manufacturer | Würth Elektronik eiSos |
| Series | WE-MPSA EMI Multilayer Power Suppression Bead |
| Impedance at 100 MHz | 150 Ω ±25% |
| Maximum impedance | 230 Ω at 700 MHz |
| Rated current | 5 A maximum (ΔT = 40 K) |
| DC resistance | 10 mΩ maximum at 20 °C |
| Case size | 2220; 5.59 mm × 5.08 mm × 1.8 mm |
| Operating temperature | −55 °C to +125 °C |
| Qualification | AEC-Q200 Grade 1; MSL 1 |
Typical applications
A 5 A rated bead with 10 mΩ of DC resistance is intended for suppression directly in power paths rather than in signal lines, so it suits DC rail filtering at the input or output of switching regulators, decoupling of high-current supply branches on dense boards, and containment of conducted emissions on distribution rails. The impedance peak at 700 MHz places its useful attenuation band well above typical switching fundamentals, targeting harmonics and high-frequency switching noise. The large 2220 footprint suits boards where thermal spreading and current-carrying capability matter more than area.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).

























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