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CenturaCores CCNT-065-055-010-STBK nanocrystalline toroidal core.
CenturaCores CCNT-065-055-010-STBK nanocrystalline toroidal core.

Size marking on the case is the bare core dimension (OD × ID × H), not the cased or finished size.

CCNT-065-055-010-STBKST seriesIn stock

Nanocrystalline toroidal core 65×55×10 mm

65×55×10 mm nanocrystalline toroidal core, Black PBT Class B 130C.

CCNT-065-055-010-STBK is a 65×55×10 mm nanocrystalline toroidal core with Black PBT Class B 130C.

Former part number: CCNT-062-055-010-STBK

In stock

Pack size

$16.381 piece

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Volume pricing

Online packs are $10.00 minimum. Buy packs totaling under 50 pieces. 50+ is quoted.

Pack / qtyUnit priceHow to buy
1 piece$16.38Buy online
Pack of 3$15.56Buy online
Pack of 5$14.74Buy online
Pack of 10$13.10Buy online
50+ piecesQuotedRequest quote

Technical Specifications

Bare core dimensions

Outer diameter (OD)65 mm
Inner diameter (ID)55 mm
Height (H)10 mm

Cased / finished dimensions

Outer diameter (OD)68.5 mm
Inner diameter (ID)52 mm
Height (H)13.5 mm
Tolerance–

Magnetic properties

MaterialNanocrystalline
SeriesST
Effective area Ae–
Mean path length Le–
Saturation flux density Bs1.25 Tesla
Initial permeability μi80,000
Curie temperature560 °C
Continuous working temperature-40°C to +130°C

Finish and handling

CasingPBT Class B 130C
ColorBlack
Temperature class130C
Net weight58 g

Environmental

Operating temperature-40°C to +130°C

Product photos

Scale check of CenturaCores CCNT-065-055-010-STBK nanocrystalline toroidal core.
Scale check of CenturaCores CCNT-065-055-010-STBK nanocrystalline toroidal core.

Applications and selection

Recommended usage

  • current transformers
  • EMI chokes
  • pulse transformers

DIY & R&D usage

  • DIY current-transformer and choke winding
  • benchtop filter tests

Technical applications

  • low-current transformers
  • common-mode chokes
  • pulse transformers

When to choose this size

Choose CCNT-065-055-010-STBK when you need this 65×55×10 mm toroidal core. Use the bare dimensions for the magnetic path and the finished dimensions, when published, for winding clearance.

Winding notes

Magnetic calculations should use the bare 65×55×10 mm geometry. AL, Ae, and Le were not measured for this core. Saturation is 1.25 T.

Frequently asked questions

Are the stated dimensions bare or finished?

The size in the product name is the bare core. Finished dimensions are listed separately when they were measured.

Where is a core this size used?

This 65×55×10 mm cased toroid is a thin-wall, wide-window core for current transformers, common-mode chokes, and pulse transformers. The 52 mm cased window lets a cable through as a single-turn primary while the 13.5 mm cased height stays short.

What finish is on this core?

This core is finished with Black PBT Class B 130C.

Need this core for your application?

Get pricing, availability, and winding support for CCNT-065-055-010-STBK.