Does your power supply design keep getting tripped up by unexpected spike noise and EMI?
If you've spent hours debugging mysterious ringing in switch-mode power circuits-especially in industrial, telecom, or motor control applications-you're not alone.
These issues often trace back to diode reverse recovery. That sudden voltage reversal can cause real havoc: reverse current spikes, added switching losses, and plenty of noise. And if your input voltage is high, these aren't just nuisances-they can sink your efficiency and threaten component reliability.
So what's the fix? More and more engineers are turning to amorphous beads for a clean, effective solution.
How Amorphous Beads Do Their Magic
Amorphous beads aren't your everyday ferrites. Made from cobalt-based amorphous alloy, they feature a super-square B-H loop (the Z-shaped kind). What does that mean in practice?
They start with high permeability-great for choking high-frequency noise right where it starts.
But they also saturate quickly, so they don't get in the way when real power needs to flow.
This two-phase behavior makes them ideal for taming reverse recovery spikes and suppressing ringing across diodes and MOSFETs, all without adding significant loss.
Where You'll See the Difference
You can drop these beads into a range of tough applications:
Output rectifier networks in continuous-mode converters
MOSFET and IGBT bridge circuits
Motor drive and battery charger systems
AC adapters and telecom power supplies
Whether it's cutting down ringing or shielding a diode from voltage spikes, amorphous beads help you avoid over-engineering the suppression circuitry.
Why Designers Are Choosing Shinhom NB / NK Series
Our amorphous beads bring a few key perks to the bench:
Low loss → better efficiency across the board
High inductance near zero current → better noise filtering right when it matters
Minimal saturation inductance → less distortion of your power signal
Simplified filtering design → save space and component count
From the slim NB-03A-N to the robust NK-18S-N, we've got a range that fits tight layouts and demanding environments.
Need a second look at your noise suppression setup?
We get it-every design has its quirks. If you're weighing different solutions or just want to see how amorphous beads perform in your circuit, we're here to help.
Reach out at sales@shinhom.com.cn for free samples, detailed specs, or personalized support-no strings attached.
Let's build quieter, more reliable power systems together.