
Nanocrystalline toroidal core 78.6×50×30 mm
78.6×50×30 mm nanocrystalline toroidal core, Blue colored Powder Coating.
CCNT-080-050-030-LFBL is a 78.6×50×30 mm nanocrystalline toroidal core with Blue powder coating. Bare size is 78.6×50×30 mm. Finished (coated) size is 79.4×49.2×30 mm.
In stock
$16.42Pack of 3
$5.47 per piece
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Volume pricing
Online packs are $10.00 minimum. Buy packs totaling under 50 pieces. 50+ is quoted.
| Pack / qty | Unit price | How to buy |
|---|---|---|
| Pack of 3 | $5.47 | Buy online |
| Pack of 5 | $5.18 | Buy online |
| Pack of 10 | $4.61 | Buy online |
| 50+ pieces | Quoted | Request quote |
Technical Specifications
Bare core dimensions
Cased / finished dimensions
Magnetic properties
AL is one turn through the window (Kelvin clips) at 0.3 V. It is not a 2 mT small-signal AL. At 1 kHz this drive saturates the smaller cores.
Finish and handling
Environmental
Product photos


Applications and selection
Recommended usage
- high-current CTs
- power magnetics
- prototype magnetics
DIY & R&D usage
- DIY current-sensing builds
- benchtop transformer prototyping
- hobbyist magnetics experiments
Technical applications
- high-current CTs (powder-coated LF toroid)
- power magnetics (powder-coated LF toroid)
- prototype magnetics (powder-coated LF toroid)
When to choose this size
Choose CCNT-080-050-030-LFBL when you need this 78.6×50×30 mm powder-coated toroid. Use the bare dimensions for the magnetic path and the finished inner diameter (49.2 mm) for winding clearance.
Winding notes
Magnetic calculations should use the bare 78.6×50×30 mm geometry (Ae 3.52 cm², Le 20.2 cm, stacking factor 0.82). AL is one turn through the window (Kelvin clips) at 0.3 V: 180 µH at 1 kHz, 134 µH at 10 kHz, and 7 µH at 100 kHz. This is not a 2 mT small-signal AL. At 1 kHz this drive saturates the smaller cores. Size the winding to the finished ID 49.2 mm, not the 50 mm bare ID. Saturation is 1.25 T. Core continuous temperature is -40°C to +150°C. Powder-coat temperature class is not published.
Related application guides
Frequently asked questions
Are the stated dimensions bare or finished?
The size in the product name is the bare core (78.6×50×30 mm). Finished coated size is 79.4×49.2×30 mm.
How was AL measured?
One turn: Kelvin clips through the window at 0.3 V. AL is 180 µH at 1 kHz, 134 µH at 10 kHz, and 7 µH at 100 kHz. This is not a 2 mT small-signal AL. At 1 kHz this drive saturates the smaller cores. Verify inductance on the wound part.
Where is a core this size used?
This 78.6×50×30 mm powder-coated toroid is used for high-current transformers and power magnetics where the conductor is large. The 49.2 mm finished window passes a heavy cable or small bus, and the 30 mm height is the largest stack in this powder-coated toroid range.
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