TAIYO YUDEN CO., LTD. and PFAS, what the company told Minnesota

TAIYO YUDEN CO., LTD. has filed 27 PFAS disclosures with the Minnesota Pollution Control Agency, covering 27 products and naming 2 distinct compounds across 3 components. Everything below is the company’s own statement to a regulator, not our assessment.

Disclosures filed
27
Products covered
27
Compounds named
2
Declared uses
2

How much is reported

Concentration bands as filed, heaviest declared first, with filings that give no concentration at the bottom. Counts are of filings, since one product can report more than one compound.

  • 10,000 ppm to <150,000 ppm (15%)15 filings
  • 1,000 ppm to <10,000 ppm (1%)7 filings
  • 100 ppm to <1,000 ppm (0.1%)5 filings

All 27 filings

Power inductor LBE seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series LBE · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LCE seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series LCE · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LLE seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series LLE · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LME seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series LME · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LSE seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series LSE · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LVE seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series LVE · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MEFE seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series MEFE · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MEGK seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series MEGK · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MEHK seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series MEHK · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MEJE seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series MEJE · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MEJK seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series MEJK · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MEKK seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series MEKK · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MELK seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series MELK · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MEMK seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series MEMK · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MEQK seriesTAIYO YUDEN INC
Where in the product,
Marking ink
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

TAIYO YUDEN Product Series MEQK · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LBR seriesTAIYO YUDEN INC
Where in the product,
Base
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
1,000 ppm to <10,000 ppm (1%)

TAIYO YUDEN Product Series LBR · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LCR seriesTAIYO YUDEN INC
Where in the product,
Base
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
1,000 ppm to <10,000 ppm (1%)

TAIYO YUDEN Product Series LCR · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LLR seriesTAIYO YUDEN INC
Where in the product,
Base
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
1,000 ppm to <10,000 ppm (1%)

TAIYO YUDEN Product Series LLR · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LMR seriesTAIYO YUDEN INC
Where in the product,
Base
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
1,000 ppm to <10,000 ppm (1%)

TAIYO YUDEN Product Series LMR · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LSR seriesTAIYO YUDEN INC
Where in the product,
Base
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
1,000 ppm to <10,000 ppm (1%)

TAIYO YUDEN Product Series LSR · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LVR seriesTAIYO YUDEN INC
Where in the product,
Base
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
1,000 ppm to <10,000 ppm (1%)

TAIYO YUDEN Product Series LVR · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor NS seriesTAIYO YUDEN INC
Where in the product,
Base
What it is doing,
Surface modifier
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
1,000 ppm to <10,000 ppm (1%)

TAIYO YUDEN Product Series NS · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LLA seriesTAIYO YUDEN INC
Where in the product,
Insulation coat
What it is doing,
Defoamer
Compound,
Methyl(3,3,3-trifluoropropyl)silanone (CAS 63148-56-1)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

TAIYO YUDEN Product Series LLA · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor LSA seriesTAIYO YUDEN INC
Where in the product,
Insulation coat
What it is doing,
Defoamer
Compound,
Methyl(3,3,3-trifluoropropyl)silanone (CAS 63148-56-1)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

TAIYO YUDEN Product Series LSA · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MAKK seriesTAIYO YUDEN INC
Where in the product,
Insulation coat
What it is doing,
Defoamer
Compound,
Methyl(3,3,3-trifluoropropyl)silanone (CAS 63148-56-1)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

TAIYO YUDEN Product Series MAKK · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MAMK seriesTAIYO YUDEN INC
Where in the product,
Insulation coat
What it is doing,
Defoamer
Compound,
Methyl(3,3,3-trifluoropropyl)silanone (CAS 63148-56-1)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

TAIYO YUDEN Product Series MAMK · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Power inductor MZKK seriesTAIYO YUDEN INC
Where in the product,
Insulation coat
What it is doing,
Defoamer
Compound,
Methyl(3,3,3-trifluoropropyl)silanone (CAS 63148-56-1)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

TAIYO YUDEN Product Series MZKK · Minnesota disclosure MN-XBN32NR · published 2026-09-12

Other companies that have filed

Source, manufacturer filings made to the Minnesota Pollution Control Agency under the state’s PFAS in Products law and published through PRISM, run by the Interstate Chemicals Clearinghouse. These are the manufacturers’ own statements, not our grades and not laboratory results. A filing covers the product as sold in Minnesota and says nothing about products or formulations the company did not file. Reporting was still open when this was pulled, so absence from the set is not evidence a product is PFAS-free.