Copper-Iron Co-Fired Inductors
Copper coil and soft-magnetic powder sintered into one piece at high temperature. Removes resin binder for thinner profile, higher inductance density and long-term thermal stability.
View series →High-Current SMD Power Inductors for AI & Power Electronics
Copper-iron co-fired and metal-alloy molded SMD power inductors engineered for AI server VRM, server PSU, power modules and high-current DC-DC rails.
Factory in Ningbo, near China’s magnetic-material cluster. Low DCR, high Isat, soft saturation and ultra-thin profiles — with engineering samples, fast quoting and pin-compatible alternatives.
Low DCR
Less copper loss at high current
High Isat
Soft saturation under DC bias
Ultra-thin
Low-profile 1040 / 1050 footprints
3–5 day samples
Engineering samples, worldwide shipping
- Copper-iron co-firing technology
- Magnetically shielded, low EMI
- Pin-to-pin cross-reference support
- Ningbo factory, global shipping via DHL/FedEx
Products
High-Current SMD Power Inductor Series
Three focused series built around two core processes — copper-iron co-firing and metal-alloy molding. Every family is shielded, low-DCR and available as engineering samples.
High-Current Molded Inductors
Metal-alloy composite molded bodies with soft saturation and low acoustic noise. The workhorse family for multiphase VRM, POL and GPU/CPU power rails.
View series →Standard SMD Molded Inductors
Cost-effective shielded SMD molded inductors in common footprints (0630 and others) for DC-DC, POL, industrial and communication power supplies. OEM/ODM welcome.
View series →
Why YULIU
Built for Engineers Who Push High Current
We are a focused magnetics maker — not a catalogue reseller. You get direct factory access, honest specs and fast engineering support.
01 / Process
Copper-Iron Co-Firing
Proprietary high-temperature sintering of copper coil and magnetic alloy — the process behind ultra-thin, thermally stable power inductors.
02 / Performance
Low DCR & High Isat
Low DC resistance cuts loss; soft saturation keeps inductance stable under transient current spikes typical of AI and server loads.
03 / Support
Pin-Compatible Alternatives
Send a target part number — our engineers recommend a form-fit-function alternative with comparable Isat, Irms, DCR and footprint.
04 / Access
Factory Direct
Ningbo-based production with in-house molding, co-firing and testing. Factory audits and direct engineering dialogue welcome.
Applications
Where Our Inductors Work
AI Server VRM & GPU/CPU Power
Multiphase VRM, core and intermediate rails on AI accelerator boards — fast transient response with low loss.
View application →Server PSU & 48V Architecture
Output and intermediate-bus inductors for 48V data-center power conversion.
View application →Power Modules & DC-DC POL
Embedded and external inductors for power modules, POL converters and board-level DC-DC.
View application →Industrial, Energy Storage & EV Charging
PCS, chargers and industrial power supplies needing rugged high-current magnetics.
View application →Find a Cross-Reference
Looking for an equivalent to Coilcraft, Vishay, TDK, Würth or Bourns? Send us the part number.
Cross-reference tool →Design Resources
Selection guides, Isat vs Irms explainers and comparison articles for power inductor selection.
Browse resources →
How we work
From Cross-Reference to Samples in Days
1
Send target specs or P/N
Share a datasheet, a competitor part number, or L / Isat / Irms / DCR / footprint targets.
2
Engineering proposal
Our engineers confirm a matching series, key electrical parameters and recommended footprint.
3
Sample & qualify
Engineering samples ship within 3 working days; we support your bench testing and qualification.
Ready to Compare, Sample & Qualify?
Tell us the inductor you use today — or the specs you need tomorrow. Engineering samples available, freight collect via your courier account.