.hide-partial { max-height: none; } .show-more { display: none; }

ESD-R Series Ferrite Toroids / Ferrite Rings

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 44

Applied Filters:

Series = ESD-R

Inside Diameter

Outside Diameter

Outside Length

Packaging

Core Material

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Product	Inside Diameter	Outside Diameter	Outside Length	Series	Packaging	Core Material
Ferrite Toroids / Ferrite Rings 39x17.5x14mm Mn-Zn Case ESD-R-38SA KEMET 1: $4.88 63In Stock	Mfr. Part # ESD-R-38SA Mouser Part # 80-ESD-R-38SA	KEMET	Ferrite Toroids / Ferrite Rings 39x17.5x14mm Mn-Zn Case Learn More about KEMET emi cores	Datasheet	63In Stock	$4.88 $3.34 $2.59 $2.24 $2.15	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	17.5 mm	39 mm	14 mm	ESD-R	Tray	Manganese Zinc (MnZn)
Ferrite Toroids / Ferrite Rings 50x23x18mm Mn-Zn Case and Tape ESD-R-47-1 KEMET 1: $9.97 170In Stock 20Expected 12/10/2026	Mfr. Part # ESD-R-47-1 Mouser Part # 80-ESD-R-47-1	KEMET	Ferrite Toroids / Ferrite Rings 50x23x18mm Mn-Zn Case and Tape Learn More about KEMET emi cores	Datasheet	170In Stock 20Expected 12/10/2026	$9.97 $6.71 $5.63 $4.93 $4.84	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	23 mm	50 mm	18 mm	ESD-R	Tray	Manganese Zinc (MnZn)
Ferrite Toroids / Ferrite Rings 25.5mm ESD-R-47D-1 KEMET 1: $9.77 171In Stock	Mfr. Part # ESD-R-47D-1 Mouser Part # 80-ESD-R-47D-1	KEMET	Ferrite Toroids / Ferrite Rings 25.5mm Learn More about KEMET emi cores	Datasheet	171In Stock	$9.77 $6.58 $5.51 $4.84	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	25.5 mm	48 mm	16 mm	ESD-R	Bulk	Nickel Zinc
Ferrite Toroids / Ferrite Rings 52.5x22.7x18.5mm Mn-Zn Case ESD-R-47H KEMET 1: $16.11 8In Stock	Mfr. Part # ESD-R-47H Mouser Part # 80-ESD-R-47H	KEMET	Ferrite Toroids / Ferrite Rings 52.5x22.7x18.5mm Mn-Zn Case Learn More about KEMET emi cores	Datasheet	8In Stock	$16.11 $10.32 $8.73	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	22.7 mm	52.5 mm	18.5 mm	ESD-R	Tray	Manganese Zinc (MnZn)
Ferrite Toroids / Ferrite Rings 47x27x15mm Mn-Zn Bare ESD-R-47S KEMET 1: $9.44 55In Stock	Mfr. Part # ESD-R-47S Mouser Part # 80-ESD-R-47S	KEMET	Ferrite Toroids / Ferrite Rings 47x27x15mm Mn-Zn Bare Learn More about KEMET emi cores	Datasheet	55In Stock	$9.44 $5.57 $5.40 $4.73 $4.65	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	27 mm	47 mm	15 mm	ESD-R	Tray	Manganese Zinc (MnZn)
Ferrite Toroids / Ferrite Rings 32.4mm ESD-R-57 KEMET 1: $19.45 53In Stock	Mfr. Part # ESD-R-57 Mouser Part # 80-ESD-R-57	KEMET	Ferrite Toroids / Ferrite Rings 32.4mm Learn More about KEMET emi cores	Datasheet	53In Stock	$19.45 $12.67 $11.17 $10.91	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	32.4 mm	61 mm	24 mm	ESD-R	Bulk	Manganese Zinc (MnZn)
Ferrite Toroids / Ferrite Rings 61x32.4x24mm Mn-Zn Case and Tape ESD-R-57A-1 KEMET 1: $23.11 38In Stock	Mfr. Part # ESD-R-57A-1 Mouser Part # 80-ESD-R-57A-1	KEMET	Ferrite Toroids / Ferrite Rings 61x32.4x24mm Mn-Zn Case and Tape Learn More about KEMET emi cores	Datasheet	38In Stock	$23.11 $14.63 $13.02 $12.73	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	32.4 mm	61 mm	24 mm	ESD-R	Tray	Manganese Zinc (MnZn)
Ferrite Toroids / Ferrite Rings 57x36x20mm Mn-Zn Bare ESD-R-57S KEMET 1: $14.97 42In Stock	Mfr. Part # ESD-R-57S Mouser Part # 80-ESD-R-57S	KEMET	Ferrite Toroids / Ferrite Rings 57x36x20mm Mn-Zn Bare Learn More about KEMET emi cores	Datasheet	42In Stock	$14.97 $10.32 $8.28 $8.00	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	36 mm	57 mm	20 mm	ESD-R	Tray	Manganese Zinc (MnZn)
Ferrite Toroids / Ferrite Rings Nickel Zinc 300MHz 7x12x5.5mm ESD-R-12S KEMET 1: $0.82 6,000Expected 2/25/2027	Mfr. Part # ESD-R-12S Mouser Part # 80-ESD-R-12S	KEMET	Ferrite Toroids / Ferrite Rings Nickel Zinc 300MHz 7x12x5.5mm Learn More about KEMET emi cores	Datasheet	6,000Expected 2/25/2027	$0.82 $0.565 $0.497 $0.442 View $0.391 $0.33 $0.287 $0.269	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	7 mm	12 mm	5.5 mm	ESD-R	Bulk	Nickel Zinc
Ferrite Toroids / Ferrite Rings 19mm ESD-R-31C KEMET 1: $2.35 1,699On Order	Mfr. Part # ESD-R-31C Mouser Part # 80-ESD-R-31C	KEMET	Ferrite Toroids / Ferrite Rings 19mm Learn More about KEMET emi cores	Datasheet	1,699On Order On Order Ship Dates Mfr. #: ESD-R-31C Stock: 0 On Order: 199 Expected 1/21/2027 1,500 Expected 4/22/2027 Factory Lead-Time: 23 Weeks	$2.35 $1.62 $1.38 $1.22 View $1.07 $0.91	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	19 mm	31 mm	15 mm	ESD-R	Bulk	Nickel Zinc
Ferrite Toroids / Ferrite Rings 32x19.5x9mm Ni-Zn Coated ESD-R-31C-1 KEMET 1: $4.23 900Expected 1/21/2027	Mfr. Part # ESD-R-31C-1 Mouser Part # 80-ESD-R-31C-1	KEMET	Ferrite Toroids / Ferrite Rings 32x19.5x9mm Ni-Zn Coated Learn More about KEMET emi cores	Datasheet	900Expected 1/21/2027	$4.23 $2.90 $2.47 $2.15 View $1.87 $1.72	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	19 mm	32 mm	9 mm	ESD-R	Tray	Nickel Zinc
Ferrite Toroids / Ferrite Rings 7.3mm ESD-R-12C-2 KEMET 1: $1.20 1,400Expected 12/23/2026	Mfr. Part # ESD-R-12C-2 Mouser Part # 80-ESD-R-12C-2	KEMET	Ferrite Toroids / Ferrite Rings 7.3mm Learn More about KEMET emi cores	Datasheet	1,400Expected 12/23/2026	$1.20 $0.835 $0.718 $0.637 View $0.562 $0.47 $0.416	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	7.3 mm	12 mm	15.3 mm	ESD-R	Bulk	Nickel Zinc
Ferrite Toroids / Ferrite Rings 14mm ESD-R-25D KEMET 1: $2.47 600Expected 1/21/2027	Mfr. Part # ESD-R-25D Mouser Part # 80-ESD-R-25D	KEMET	Ferrite Toroids / Ferrite Rings 14mm Learn More about KEMET emi cores	Datasheet	600Expected 1/21/2027	$2.47 $1.68 $1.43 $1.26 View $1.11 $0.919	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	14 mm	26 mm	15 mm	ESD-R	Bulk	Nickel Zinc
Ferrite Toroids / Ferrite Rings 57x36x20mm Ni-Zn Bare ESD-R-57D KEMET 1: $31.54 20Expected 3/25/2027	Mfr. Part # ESD-R-57D Mouser Part # 80-ESD-R-57D	KEMET	Ferrite Toroids / Ferrite Rings 57x36x20mm Ni-Zn Bare Learn More about KEMET emi cores	Datasheet	20Expected 3/25/2027	$31.54 $19.05 $18.38	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	36 mm	57 mm	20 mm	ESD-R	Tray	Nickel Zinc
Ferrite Toroids / Ferrite Rings 32.4mm ESD-R-57D-1 KEMET 1: $29.43 31Expected 3/25/2027	Mfr. Part # ESD-R-57D-1 Mouser Part # 80-ESD-R-57D-1	KEMET	Ferrite Toroids / Ferrite Rings 32.4mm Learn More about KEMET emi cores	Datasheet	31Expected 3/25/2027	$29.43 $19.12 $17.83	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	32.4 mm	61 mm	24 mm	ESD-R	Bulk	Nickel Zinc
Ferrite Toroids / Ferrite Rings 9mm ESD-R-19 KEMET 1: $1.73 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # ESD-R-19 Mouser Part # 80-ESD-R-19	KEMET	Ferrite Toroids / Ferrite Rings 9mm Learn More about KEMET emi cores	Datasheet	Non-Stocked Lead-Time 23 Weeks	$1.73 $1.21 $1.03 $0.913 View $0.803 $0.618	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	9 mm	19 mm	11 mm	ESD-R	Bulk	Manganese Zinc (MnZn)
Ferrite Toroids / Ferrite Rings 26x14x15mm Ni-Zn Case and Tape ESD-R-25D-1 KEMET 1: $2.60 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # ESD-R-25D-1 Mouser Part # 80-ESD-R-25D-1	KEMET	Ferrite Toroids / Ferrite Rings 26x14x15mm Ni-Zn Case and Tape Learn More about KEMET emi cores	Datasheet	Non-Stocked Lead-Time 23 Weeks	$2.60 $1.80 $1.53 $1.34 View $1.18 $1.03	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	14 mm	26 mm	15 mm	ESD-R	Tray	Nickel Zinc
Ferrite Toroids / Ferrite Rings 25.3x14.8x12.3mm Mn-Zn Coated ESD-R-25MK KEMET 1: $3.44 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # ESD-R-25MK Mouser Part # 80-ESD-R-25MK	KEMET	Ferrite Toroids / Ferrite Rings 25.3x14.8x12.3mm Mn-Zn Coated Learn More about KEMET emi cores	Datasheet	Non-Stocked Lead-Time 23 Weeks	$3.44 $2.37 $2.01 $1.77 View $1.53 $1.43	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	14.8 mm	25.3 mm	12.3 mm	ESD-R	Tray	Manganese Zinc (MnZn)
Ferrite Toroids / Ferrite Rings 59x34x21mm Mn-Zn Coated ESD-R-57-P KEMET 1: $20.25 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # ESD-R-57-P Mouser Part # 80-ESD-R-57-P	KEMET	Ferrite Toroids / Ferrite Rings 59x34x21mm Mn-Zn Coated Learn More about KEMET emi cores	Datasheet	Non-Stocked Lead-Time 23 Weeks	$20.25 $14.20 $13.19 $12.32 Quote Quote	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids	34 mm	59 mm	21 mm	ESD-R	Tray	Manganese Zinc (MnZn)