WE-MPSB: Multilayer Power Suppression Bead

Würth Elektronik's WE-MPSB series is the world’s first ferrite bead that specifies how it performs under high current transients. This unique bead protects and extends the life of your application. It features an ultra-low RDC which delivers the lowest self-heating in its class at high currents. The WE-MPSB is ideal for DC/DC applications requiring high efficiency.

The innovative design in detail

WE-MPSB optimizes high current vs. RDC performance with up to 75% RDC reduction in comparison to similar components while maintaining a high impedance over a wide frequency range.

Optimized layer design for muscular peak current capability

Greater trace cross sectional area for ultra-low RDC

High peak current rating to maximize lifetime

Greatly improved peak current rating

High impedances over wide frequency bandwidths with up to 40% higher rated current and up to 20x higher peak current capability than standard ferrite beads.

Characteristics

• Peak current is up to 20 times higher than rated current
• Up to 40% higher rated current compared with similar products
• Optimized layer design to achieve ultra-low RDC and muscular rated current
• High impedance over a wide frequency range at rated current
• Minimized DC bias influence to impedance

Application

The WE-MPSB is ideal for use with an input capacitor in power supplies.

• Transient hostile environments
• Filter for inrush current applications
• Input/output filter of hot swap controllers
• Hot board insertion
• Electronic circuit breakers
• Industrial high-side switch/circuit breakers
• Motor interference suppression
• Input/output filter for DC/DC converter

Standard chip bead ferrites are not designed for fast transients. This makes them vulnerable to peak current in critical environments

The WE-MPSB is a muscular bead that can be exposed to peak currents without any damage. Its optimized layer design and ultra-low RDC protect and extend the life of your application.

It is a solution you cannot afford to overlook.

Part Number	General Description
74279223560	FERRITE BEAD 56 OHM 1612 1LN
74279226101	FERRITE BEAD 100 OHM 1812 1LN
74279225101	FERRITE BEAD 100 OHM 3412 1LN
74279220601	FERRITE BEAD 600 OHM 0805 1LN
74279221100	FERRITE BEAD 10 OHM 1206 1LN
74279221111	FERRITE BEAD 110 OHM 1206 1LN
74279221281	FERRITE BEAD 280 OHM 1206 1LN
7427922808	FERRITE BEAD 8 OHM 0603 1LN
74279220181	FERRITE BEAD 180 OHM 0805 1LN
74279228600	FERRITE BEAD 60 OHM 0603 1LN
74279224271	FERRITE BEAD 270 OHM 2220 1LN
74279228260	FERRITE BEAD 26 OHM 0603 1LN
74279228111	FERRITE BEAD 110 OHM 0603 1LN
74279220800	FERRITE BEAD 80 OHM 0805 1LN
74279220321	FERRITE BEAD 320 OHM 0805 1LN
74279224251	FERRITE BEAD 250 OHM 2220 1LN
74279224171	FERRITE BEAD 170 OHM 2220 1LN
74279224151	FERRITE BEAD 150 OHM 2220 1LN
74279224551	FERRITE BEAD 550 OHM 2220 1LN
74279224401	FERRITE BEAD 400 OHM 2220 1LN
74279221601	FERRITE BEAD 600 OHM 1206 1LN
74279224101	FERRITE BEAD 100 OHM 2220 1LN
74279224181	FERRITE BEAD 180 OHM 2220 1LN