EMI / Common-Mode Choke Prototyping Kit
Size-ladder nanocrystalline toroids for common-mode choke and EMI filter R&D, from compact 16 mm parts through 50 mm, including the 45 mm HF black core used in mid-power filter work.
Kit price
Compare-at is the sum of 1-pc list prices ($10.73 kit savings vs buying singles).
In stock for online purchase
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What's in the box
Fourteen nanocrystalline PBT-cased toroidal cores for EMI / CMC prototyping.
| Qty | SKU | Description | Dimensions | 1-pc list |
|---|---|---|---|---|
| 2 | CCNT-016-010-006-MFBL | Nanocrystalline toroidal core 16×10×6 mm | 16×10×6 mm | $1.44 |
| 2 | CCNT-020-012-008-MFBL | Nanocrystalline toroidal core 20×12×8 mm | 20×12×8 mm | $2.34 |
| 2 | CCNT-025-016-010-MFBL | Nanocrystalline toroidal core 25×16×10 mm | 25×16×10 mm | $4.50 |
| 2 | CCNT-030-020-012-MFBL | Nanocrystalline toroidal core 30×20×12 mm | 30×20×12 mm | $6.84 |
| 2 | CCNT-040-025-015-MFBL | Nanocrystalline toroidal core 40×25×15 mm | 40×25×15 mm | $15.30 |
| 3 | CCNT-045-030-015-HFBK | Nanocrystalline toroidal core 45×30×15 mm | 45×30×15 mm | $15.66 |
| 1 | CCNT-050-032-015-MFBL | Nanocrystalline toroidal core 50×32×15 mm | 50×32×15 mm | $27.90 |
Who it's for
- SMPS and EMI filter designers
- Inverter and VFD magnetics engineers
- UPS and industrial power filter labs
Typical use cases
- Common-mode choke size selection
- AC-line and DC-link EMI filter prototyping
- Inverter and motor-drive CM choke trials
- UPS input/output filter experiments
How to use
Match outer diameter and window to conductor cross-section and target impedance. Start mid-ladder for 50–200 W class filters, then step size while watching temperature rise and attenuation. Dedicated HF white stock can replace or extend this ladder when that series is buyable.
FAQ
Is this kit only for common-mode chokes?
It is optimized for CMC and EMI filter size selection, but the same nanocrystalline toroids are useful for related closed-path filter and sensing experiments.
What happens after I pick a winning size?
Reorder that single catalog SKU in pack quantities (or request a production-gapped cut core). Kits are for size and gap exploration, not a substitute for locking a production part number.
Do kits ship with datasheets?
Each included SKU has its own product page with dimensions, AL, and photos. Open the linked part numbers in the contents table for datasheets and specs.
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Ready for production volumes after you lock a size? Request a quote for that SKU or browse pack pricing on each product page.