Ferrite Toroids / Ferrite Rings

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59x Toroid Rings

Fair-Rite 59x Toroid Rings are designed with a ring configuration that provides the ultimate utilization of the intrinsic ferrite material properties. These toroid cores are built using thermo-set plastic-coated parts that can withstand a minimum breakdown voltage of 1000V_rms. Fair-Rite 59x Toroid Cores are supplied burnished to break sharp edges. These cores are ideal for power input filters, ground-fault interrupters, common-mode filters, and pulse and broadband transformers.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (IDR) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Product	Inside Diameter	Outside Diameter	Outside Length	Outside Height	Series	Packaging	Core Material
Ferrite Toroids / Ferrite Rings 77 Toroid 6.35x12.7MM 5977001101 Fair-Rite 1: Rp14.677 3.455In Stock	Mfr. Part No. 5977001101 Mouser Part No 623-5977001101	Fair-Rite	Ferrite Toroids / Ferrite Rings 77 Toroid 6.35x12.7MM Learn More about Fair-Rite fair rite 59x toroid rings		3.455In Stock	Rp14.677 Rp10.329 Rp8.916 Rp7.925 View Rp6.311 Rp5.394 Rp4.807	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	7.9 mm	12.7 mm		6.35 mm	59	Bulk	77
Ferrite Toroids / Ferrite Rings 77 RI 5977001401 Fair-Rite 1: Rp35.408 1.479In Stock	Mfr. Part No. 5977001401 Mouser Part No 623-5977001401	Fair-Rite	Ferrite Toroids / Ferrite Rings 77 RI Learn More about Fair-Rite fair rite 59x toroid rings		1.479In Stock	Rp35.408 Rp24.584 Rp21.098 Rp18.529 View Rp16.732 Rp13.411 Rp12.329 Rp12.273	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	15.5 mm	25.4 mm		8.15 mm	59	Bulk	77
Ferrite Toroids / Ferrite Rings 77 TOROID 9.5mm 31.75mm 5977001701 Fair-Rite 1: Rp52.286 440In Stock	Mfr. Part No. 5977001701 Mouser Part No 623-5977001701	Fair-Rite	Ferrite Toroids / Ferrite Rings 77 TOROID 9.5mm 31.75mm Learn More about Fair-Rite fair rite 59x toroid rings		440In Stock	Rp52.286 Rp35.958 Rp30.821 Rp26.051 View Rp23.850 Rp20.364 Rp19.263	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	19.05 mm	31.75 mm		9.5 mm	59	Bulk	77
Ferrite Toroids / Ferrite Rings 77 TOROID (36.8/21.95/13.7)mm 5977002721 Fair-Rite 1: Rp119.799 138In Stock	Mfr. Part No. 5977002721 Mouser Part No 623-5977002721	Fair-Rite	Ferrite Toroids / Ferrite Rings 77 TOROID (36.8/21.95/13.7)mm Learn More about Fair-Rite fair rite 59x toroid rings		138In Stock	Rp119.799 Rp82.190 Rp67.513 Rp60.358 Rp57.790	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	21.95 mm	36.8 mm		13.7 mm	59	Bulk	77
Ferrite Toroids / Ferrite Rings 78 RI 5978007601 Fair-Rite 1: Rp47.333 345In Stock	Mfr. Part No. 5978007601 Mouser Part No 623-5978007601	Fair-Rite	Ferrite Toroids / Ferrite Rings 78 RI Learn More about Fair-Rite fair rite 59x toroid rings		345In Stock	Rp47.333 Rp32.839 Rp28.069 Rp24.951 View Rp21.832 Rp19.080	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	13.7 mm	22.1 mm		12.7 mm	59	Bulk	78
Ferrite Toroids / Ferrite Rings 78 TOROID T102/75/25-78 5978014001 Fair-Rite 1: Rp692.745 18In Stock	Mfr. Part No. 5978014001 Mouser Part No 623-5978014001	Fair-Rite	Ferrite Toroids / Ferrite Rings 78 TOROID T102/75/25-78 Learn More about Fair-Rite fair rite 59x toroid rings		18In Stock	Rp692.745 Rp495.709	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids					59	Bulk	78
Ferrite Toroids / Ferrite Rings 61 Toroid 5961000811 Fair-Rite 1: Rp5.504 787In Stock	Mfr. Part No. 5961000811 Mouser Part No 623-5961000811	Fair-Rite	Ferrite Toroids / Ferrite Rings 61 Toroid Learn More about Fair-Rite fair rite 59x toroid rings		787In Stock	Rp5.504 Rp3.798 Rp3.302 Rp2.954 View Rp2.642 Rp2.257 Rp2.000 Rp1.669 Rp1.229	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids					59	Bulk	61
Ferrite Toroids / Ferrite Rings 43 TOROID (5.99/2.91/3.19)mm 5943000911 Fair-Rite 1: Rp13.393 1.046In Stock	Mfr. Part No. 5943000911 Mouser Part No 623-5943000911	Fair-Rite	Ferrite Toroids / Ferrite Rings 43 TOROID (5.99/2.91/3.19)mm Learn More about Fair-Rite fair rite 59x toroid rings		1.046In Stock	Rp13.393 Rp9.393 Rp8.127 Rp7.247 View Rp6.439 Rp5.467 Rp4.788 Rp4.165 Rp3.889	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	2.91 mm	5.99 mm		3.19 mm	59	Bulk	43
Ferrite Toroids / Ferrite Rings 61 Toroid 5961000111 Fair-Rite 1: Rp10.090 1.130In Stock	Mfr. Part No. 5961000111 Mouser Part No 623-5961000111	Fair-Rite	Ferrite Toroids / Ferrite Rings 61 Toroid Learn More about Fair-Rite fair rite 59x toroid rings		1.130In Stock	Rp10.090 Rp6.916 Rp6.017 Rp5.375 View Rp4.788 Rp4.091 Rp3.596 Rp2.935 Rp2.513	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids					59	Bulk	61
Ferrite Toroids / Ferrite Rings 75 RINGS 5975000221 Fair-Rite 1: Rp12.108 584In Stock	Mfr. Part No. 5975000221 Mouser Part No 623-5975000221	Fair-Rite	Ferrite Toroids / Ferrite Rings 75 RINGS Learn More about Fair-Rite fair rite 59x toroid rings		584In Stock	Rp12.108 Rp8.439 Rp7.283 Rp6.476 View Rp5.742 Rp4.862 Rp4.256 Rp3.779	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids					59	Bulk	75
Ferrite Toroids / Ferrite Rings 75 RI 5975001821 Fair-Rite 1: Rp62.743 50In Stock	Mfr. Part No. 5975001821 Mouser Part No 623-5975001821	Fair-Rite	Ferrite Toroids / Ferrite Rings 75 RI Learn More about Fair-Rite fair rite 59x toroid rings		50In Stock	Rp62.743 Rp43.113 Rp37.793 Rp33.206 View Rp28.803 Rp26.785	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids					59	Bulk	75
Ferrite Toroids / Ferrite Rings 85 Toroid 9.50x4.75x3.30MM 5985000201 Fair-Rite 1: Rp8.072 281In Stock Verify Status with Factory	Mfr. Part No. 5985000201 Mouser Part No 623-5985000201 Verify Status with Factory	Fair-Rite	Ferrite Toroids / Ferrite Rings 85 Toroid 9.50x4.75x3.30MM Learn More about Fair-Rite fair rite 59x toroid rings	Datasheet	281In Stock	Rp8.072 Rp5.614 Rp4.880 Rp4.348 View Rp3.889 Rp3.302 Rp2.917 Rp2.550 Rp2.073	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings						59	Bulk	85
Ferrite Toroids / Ferrite Rings 43 Toroid TX16/9.6/4.6-43 5943006401 Fair-Rite 1: Rp51.552 4.824On Order	Mfr. Part No. 5943006401 Mouser Part No 623-5943006401	Fair-Rite	Ferrite Toroids / Ferrite Rings 43 Toroid TX16/9.6/4.6-43 Learn More about Fair-Rite fair rite 59x toroid rings		4.824On Order On Order Ship Dates Mfr. No: 5943006401 Stock: 0 On Order: 536 Expected 14/12/2026 3.216 Expected 15/02/2027 1.072 Expected 22/02/2027 Factory Lead Time: 25 Weeks	Rp51.552 Rp35.591 Rp30.454 Rp26.785 View Rp23.483 Rp20.731	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids					59	Bulk	43
Ferrite Toroids / Ferrite Rings 61 Toroid 5961001821 Fair-Rite 1: Rp43.480 2.519On Order	Mfr. Part No. 5961001821 Mouser Part No 623-5961001821	Fair-Rite	Ferrite Toroids / Ferrite Rings 61 Toroid Learn More about Fair-Rite fair rite 59x toroid rings		2.519On Order On Order Ship Dates Mfr. No: 5961001821 Stock: 0 On Order: 1.274 Expected 28/09/2026 1.245 Expected 12/10/2026 Factory Lead Time: 20 Weeks	Rp43.480 Rp30.087 Rp25.684 Rp22.749 View Rp19.630 Rp17.539	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids					59	Bulk	61
Ferrite Toroids / Ferrite Rings 75 TOROID 5975000101 Fair-Rite 1: Rp5.687 35.990Expected 14/12/2026	Mfr. Part No. 5975000101 Mouser Part No 623-5975000101	Fair-Rite	Ferrite Toroids / Ferrite Rings 75 TOROID Learn More about Fair-Rite fair rite 59x toroid rings		35.990Expected 14/12/2026	Rp5.687 Rp3.871 Rp3.357 Rp3.009 View Rp2.679 Rp2.330 Rp1.963 Rp1.614	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	3.05 mm	5.95 mm	1.65 mm		59	Bulk	75
Ferrite Toroids / Ferrite Rings 77 RI 5977001201 Fair-Rite 1: Rp43.113 2.305On Order	Mfr. Part No. 5977001201 Mouser Part No 623-5977001201	Fair-Rite	Ferrite Toroids / Ferrite Rings 77 RI Learn More about Fair-Rite fair rite 59x toroid rings		2.305On Order On Order Ship Dates Mfr. No: 5977001201 Stock: 0 On Order: 443 Pending 1.862 Expected 12/10/2026 Factory Lead Time: 20 Weeks	Rp43.113 Rp29.904 Rp25.684 Rp22.566 View Rp19.814 Rp16.787	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	19 mm	29 mm		13.85 mm	59	Bulk	77
Ferrite Toroids / Ferrite Rings 77 TOROID 12.70mm 35.55mm 5977002701 Fair-Rite 1: Rp58.340 2.846On Order	Mfr. Part No. 5977002701 Mouser Part No 623-5977002701	Fair-Rite	Ferrite Toroids / Ferrite Rings 77 TOROID 12.70mm 35.55mm Learn More about Fair-Rite fair rite 59x toroid rings		2.846On Order On Order Ship Dates Mfr. No: 5977002701 Stock: 0 On Order: 991 Expected 19/10/2026 1.855 Expected 23/11/2026 Factory Lead Time: 20 Weeks	Rp58.340 Rp40.178 Rp34.124 Rp30.087 View Rp26.235 Rp23.850	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	23 mm	35.55 mm		12.7 mm	59	Bulk	77
Ferrite Toroids / Ferrite Rings 77 TOROID 12.7mm 73.65mm 5977011101 Fair-Rite 1: Rp272.438 192On Order	Mfr. Part No. 5977011101 Mouser Part No 623-5977011101	Fair-Rite	Ferrite Toroids / Ferrite Rings 77 TOROID 12.7mm 73.65mm Learn More about Fair-Rite fair rite 59x toroid rings		192On Order On Order Ship Dates Mfr. No: 5977011101 Stock: 0 On Order: 96 Expected 09/11/2026 96 Expected 14/12/2026 Factory Lead Time: 20 Weeks	Rp272.438 Rp207.310 Rp168.783	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	38.85 mm	73.65 mm		12.7 mm	59	Bulk	77
Ferrite Toroids / Ferrite Rings 78 TOROID 5978002701 Fair-Rite 1: Rp55.772 5.310On Order	Mfr. Part No. 5978002701 Mouser Part No 623-5978002701	Fair-Rite	Ferrite Toroids / Ferrite Rings 78 TOROID Learn More about Fair-Rite fair rite 59x toroid rings		5.310On Order On Order Ship Dates Mfr. No: 5978002701 Stock: 0 On Order: 2.342 Expected 12/10/2026 2.968 Expected 09/11/2026 Factory Lead Time: 20 Weeks	Rp55.772 Rp38.527 Rp32.289 Rp28.803 View Rp25.134 Rp22.749	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	23 mm	35.55 mm	12.7 mm		59	Bulk	78
Ferrite Toroids / Ferrite Rings 78 TOROID 5978011101 Fair-Rite 1: Rp235.196 240On Order	Mfr. Part No. 5978011101 Mouser Part No 623-5978011101	Fair-Rite	Ferrite Toroids / Ferrite Rings 78 TOROID Learn More about Fair-Rite fair rite 59x toroid rings		240On Order On Order Ship Dates Mfr. No: 5978011101 Stock: 0 On Order: 96 Expected 25/01/2027 144 Expected 15/02/2027 Factory Lead Time: 21 Weeks	Rp235.196 Rp160.711 Rp125.854	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	38.85 mm	73.65 mm	12.7 mm		59	Bulk	78
Ferrite Toroids / Ferrite Rings 43 Toroid 5943001401 Fair-Rite 1: Rp40.178 1.462On Order	Mfr. Part No. 5943001401 Mouser Part No 623-5943001401	Fair-Rite	Ferrite Toroids / Ferrite Rings 43 Toroid Learn More about Fair-Rite fair rite 59x toroid rings		1.462On Order On Order Ship Dates Mfr. No: 5943001401 Stock: 0 On Order: 390 Expected 05/10/2026 1.072 Expected 15/02/2027 Factory Lead Time: 20 Weeks	Rp40.178 Rp27.886 Rp22.566 Rp21.098 View Rp18.346 Rp15.502 Rp15.374	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	15.5 mm	25.4 mm		8.15 mm	59	Bulk	43
Ferrite Toroids / Ferrite Rings 76 Toroid 5976022021 Fair-Rite 1: Rp180.525 210Expected 30/11/2026	Mfr. Part No. 5976022021 Mouser Part No 623-5976022021	Fair-Rite	Ferrite Toroids / Ferrite Rings 76 Toroid		210Expected 30/11/2026	Rp180.525 Rp128.055 Rp107.324 Rp95.583 View Rp95.216 Quote	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings						59	Bulk
Ferrite Toroids / Ferrite Rings 78 TOROID 5978002101 Fair-Rite 120.000: Rp1.688 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. 5978002101 Mouser Part No 623-5978002101	Fair-Rite	Ferrite Toroids / Ferrite Rings 78 TOROID Learn More about Fair-Rite fair rite 59x toroid rings		Non-Stocked Lead-Time 10 Weeks	Rp1.688	Min.: 120.000 Mult.: 120.000	Ferrite Toroids / Ferrite Rings	Toroids	2.2 mm	4.95 mm	1.4 mm		59	Bulk	78
Ferrite Toroids / Ferrite Rings 78 RI 5978008001 Fair-Rite 10: Rp1.202.580 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. 5978008001 Mouser Part No 623-5978008001	Fair-Rite	Ferrite Toroids / Ferrite Rings 78 RI Learn More about Fair-Rite fair rite 59x toroid rings		Non-Stocked Lead-Time 10 Weeks	Reel Rp1.202.580	Min.: 10 Mult.: 10 : 10	Ferrite Toroids / Ferrite Rings	Toroids					59	Reel	78
Ferrite Toroids / Ferrite Rings 61 Toroid 5961001921 Fair-Rite 1: Rp29.354 Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. 5961001921 Mouser Part No 623-5961001921	Fair-Rite	Ferrite Toroids / Ferrite Rings 61 Toroid Learn More about Fair-Rite fair rite 59x toroid rings		Non-Stocked Lead-Time 20 Weeks	Rp29.354 Rp20.364 Rp17.447 Rp13.888 View Rp12.567 Rp10.732 Rp10.622	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids					59	Bulk	61