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High Voltage Power Inductors store energy, control ripple, and support EMI compliance in AC/DC and DC/DC stages. INF (Nanjing Infinity Technology Co., Ltd.) designs and manufactures standard and custom parts for industrial, telecom, automotive, medical, new energy, and aerospace applications. Since 2003, our engineering support and free samples help teams validate designs quickly and confidently.
Each design targets low DCR for efficiency, high saturation current under peak load, and stable inductance across temperature. Insulation systems, bobbin geometry, and creepage and clearance are selected to match operating and withstand voltages. Shielded constructions reduce stray fields and radiated noise in dense layouts. Thermal paths, gap placement, and winding schemes are optimized to minimize temperature rise.
Low DCR for lower loss and higher conversion efficiency
Controlled saturation performance and high current handling
Shielded options for demanding EMC requirements
Safety-focused spacing for high-voltage operation
| Type | Best Fit | Typical Use Cases |
|---|---|---|
| SMT (shielded) | Compact, low profile, strong EMC performance | High‑density DC‑DC, POL converters, telecom/server power |
| Radial leaded | Generous creepage/clearance, robust mechanics | Off‑line AC/DC, PFC stages, industrial controls |
| Toroidal (through‑hole) | Low stray fields, high energy storage | Bus converters, higher power stages, low‑noise designs |
SMT options support automated placement and low profiles while improving EMC performance in tight layouts. They suit high‑density DC‑DC stages and point‑of‑load converters where predictable thermal behavior is critical.
These components serve off‑line AC/DC supplies, PFC stages, flyback or LLC converters, bus converters, and energy storage interfaces. Automotive on‑board chargers and auxiliary converters are supported on request. Industrial, medical, and telecom systems benefit from low noise and robust reliability.
Define operating and withstand voltages, then set creepage and clearance targets early. Choose inductance to meet ripple goals without excessive core or winding loss. Ensure rated current and saturation current exceed worst‑case peaks. Target low DCR while checking thermal rise across the full envelope. Confirm mounting style, footprint limits, and compliance needs such as UL, CE, and RoHS.
INF provides an end‑to‑end workflow: requirements capture, magnetic design, prototypes, validation, and scalable production. ODM/OEM services enable co‑design aligned with footprint, thermal, and manufacturability goals. We operate under ISO9001 and use materials designed to meet UL, CE, and RoHS requirements. Reliability plans and documentation are available per project needs.
Contact INF, your High Voltage Power Inductors manufacturer, to request free samples, share specifications, and receive a fast RFQ.
