Size marking on the case is the bare core dimension (OD × ID × H), not the cased or finished size.
Nanocrystalline toroidal core 110×80×40 mm
110×80×40 mm nanocrystalline toroidal core, Black PBT Class B 130C.
Soft-published ahead of stock. Expected availability October 20, 2026. The image is a dimension diagram; product photos will be added when inventory arrives.
CCNT-110-080-040-HFBK is a 110×80×40 mm nanocrystalline toroidal core for EV charger DC-DC stage transformers, solid-state/medium-frequency transformers, and utility-scale CTs. Its nanocrystalline HF characteristic suits higher-frequency magnetics where size, window, and permeability must stay in balance. Choose this size when cable or busbar clearance and magnetic area come first.
Arriving October 20, 2026
$259.381 piece
This SKU is soft-published for selection and SEO. Product photos will be added when stock arrives. Request a quote now, or join the waitlist for an in-stock notice.
Technical Specifications
Bare core dimensions
Cased / finished dimensions
Magnetic properties
Finish and handling
Environmental
Applications and selection
Applications
- EV charger DC-DC stage transformers
- solid-state/medium-frequency transformers
- utility-scale CTs
- high-power converter cores
- EV charging DC-DC stage medium-frequency transformers
- solid-state transformer (SST) cores for grid applications
- utility-scale/high-current CTs
- high-power converter isolation transformers
When to choose this size
This 110×80×40 mm toroidal core is sized for EV charger DC-DC stage transformers and related designs in the nearby size family. Step down to the 105×75×30 mm core when board space, enclosure height, or a tighter footprint matters more than winding room. This is among the larger options in the family: pick it when cable clearance, high current, or maximum magnetic area come first. In short, pick CCNT-110-080-040-HFBK when your design for EV charger DC-DC stage transformers fits this window and OD; pick a neighbor when compactness or power handling shifts the trade-off.
Winding notes
Magnetic calculations should use the bare 110×80×40 mm geometry (Ae 4.92 cm², Le 29.8 cm). The winding must fit the finished window: cased ID is 75.2 mm, not the 80 mm bare ID. Keep the winding distributed around the toroid to limit leakage and local heating. High permeability (μi 80,000) supports useful magnetizing inductance at practical turn counts; stay within 1.25 Tesla saturation and the -40°C to +130°C PBT Class B 130C limit.
Frequently asked questions
Are stated dimensions bare or cased?
The 110×80×40 mm size marked on the case is the bare core (OD × ID × H). Finished cased size is 116 × 75.2 × 46.9 mm. Use bare dimensions with Ae and Le for magnetic design, and the finished inner diameter for winding clearance.
What is this core typically used for?
CCNT-110-080-040-HFBK is typically used for EV charger DC-DC stage transformers, solid-state/medium-frequency transformers, and utility-scale CTs. Match the bare Ae/Le and finished window to your winding and duty cycle.
When should I choose a different size instead?
Stay with this size when clearance and magnetic area come first. Step down to the 105×75×30 mm core only when a smaller footprint is required and the winding still fits.
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