Passive Components – Mouser Indonesia

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EMI Cores

KEMET EMI Cores provide high-frequency noise suppression in electronic circuits. There are two ferrite material options for KEMET EMI Cores, namely Nickel-Zinc (NiZn) and Manganese Zinc (MnZn). The NiZn core material is typically effective for theMHz band range (FM-band frequencies), whereas the MnZn core material is typically effective for the kHz band range (AM-band frequencies). The MnZn core material offers a lower resistance compared to the NiZn and hence adequate insulation is required before use (recommended to measure the actual frequency-range effectiveness in the target application). The effective frequency range varies depending on core shape, size, and the number of turns.

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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.
Ferrite Cable Cores 48.3x2mm Split Core Ni-Zn for Flat Cable ESD-FPD-34-1 KEMET 1: Rp161.628,26 115Expected 25/02/2027	Mfr. Part No. ESD-FPD-34-1 Mouser Part No 80-ESD-FPD-34-1	KEMET	Ferrite Cable Cores 48.3x2mm Split Core Ni-Zn for Flat Cable Learn More about KEMET emi cores	Datasheet	115Expected 25/02/2027	Rp161.628,26 Rp109.158,70 Rp91.546,54 Rp79.438,18 Rp78.704,34	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 7.3mm ESD-R-12C-2 KEMET 1: Rp22.015,20 1.400Expected 23/12/2026	Mfr. Part No. ESD-R-12C-2 Mouser Part No 80-ESD-R-12C-2	KEMET	Ferrite Toroids / Ferrite Rings 7.3mm Learn More about KEMET emi cores	Datasheet	1.400Expected 23/12/2026	Rp22.015,20 Rp15.318,91 Rp13.172,43 Rp11.686,40 View Rp10.310,45 Rp8.622,62 Rp7.631,94	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 14mm ESD-R-25D KEMET 1: Rp45.314,62 600Expected 21/01/2027	Mfr. Part No. ESD-R-25D Mouser Part No 80-ESD-R-25D	KEMET	Ferrite Toroids / Ferrite Rings 14mm Learn More about KEMET emi cores	Datasheet	600Expected 21/01/2027	Rp45.314,62 Rp30.821,28 Rp26.234,78 Rp23.115,96 View Rp20.364,06 Rp16.859,97	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 13.9mm ESD-R-25D-B KEMET 1: Rp48.433,44 419Expected 22/04/2027	Mfr. Part No. ESD-R-25D-B Mouser Part No 80-ESD-R-25D-B	KEMET	Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 13.9mm Learn More about KEMET emi cores	Datasheet	419Expected 22/04/2027	Rp48.433,44 Rp33.389,72 Rp28.436,30 Rp24.950,56 View Rp21.831,74 Rp19.263,30	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 25.5mm ESD-R-47B KEMET 1: Rp157.225,22 90On Order	Mfr. Part No. ESD-R-47B Mouser Part No 80-ESD-R-47B	KEMET	Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 25.5mm Learn More about KEMET emi cores	Datasheet	90On Order On Order Ship Dates Mfr. No: ESD-R-47B Stock: 0 On Order: 60 Expected 26/11/2026 30 Expected 15/12/2026 Factory Lead Time: 23 Weeks	Rp157.225,22 Rp112.277,52 Rp97.600,72 Rp89.345,02	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 57x36x20mm Ni-Zn Bare ESD-R-57D KEMET 1: Rp578.632,84 20Expected 25/03/2027	Mfr. Part No. ESD-R-57D Mouser Part No 80-ESD-R-57D	KEMET	Ferrite Toroids / Ferrite Rings 57x36x20mm Ni-Zn Bare Learn More about KEMET emi cores	Datasheet	20Expected 25/03/2027	Rp578.632,84 Rp349.491,30 Rp337.199,48	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 32.4mm ESD-R-57D-1 KEMET 1: Rp539.922,78 31Expected 25/03/2027	Mfr. Part No. ESD-R-57D-1 Mouser Part No 80-ESD-R-57D-1	KEMET	Ferrite Toroids / Ferrite Rings 32.4mm Learn More about KEMET emi cores	Datasheet	31Expected 25/03/2027	Rp539.922,78 Rp350.775,52 Rp327.109,18	Min.: 1 Mult.: 1
Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 6x21x16.5x16.5mm ESD-SR-160620X-R1 KEMET 1: Rp42.379,26 896Expected 24/12/2026	Mfr. Part No. ESD-SR-160620X-R1 Mouser Part No 80-ESD-SR-160620X-R1	KEMET	Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 6x21x16.5x16.5mm Learn More about KEMET emi cores	Datasheet	896Expected 24/12/2026	Rp42.379,26 Rp28.436,30 Rp24.216,72 Rp21.281,36 View Rp18.712,92 Rp16.621,48 Rp15.979,37	Min.: 1 Mult.: 1
Ferrite Cable Cores 4.8x2.4mm 300MHz Ni-Zn Coated B-20L-48B-A KEMET 30.000: Rp12.695,43 Non-Stocked Lead-Time 29 Weeks	Mfr. Part No. B-20L-48B-A Mouser Part No 80-B-20L-48B-A	KEMET	Ferrite Cable Cores 4.8x2.4mm 300MHz Ni-Zn Coated Learn More about KEMET emi cores	Datasheet	Non-Stocked Lead-Time 29 Weeks	Rp12.695,43	Min.: 30.000 Mult.: 5.000
Ferrite Cable Cores Split Core Flat 56mm Cable ESD-FPD-40 KEMET 1: Rp172.635,86 Non-Stocked Lead-Time 23 Weeks	Mfr. Part No. ESD-FPD-40 Mouser Part No 80-ESD-FPD-40	KEMET	Ferrite Cable Cores Split Core Flat 56mm Cable Learn More about KEMET emi cores	Datasheet	Non-Stocked Lead-Time 23 Weeks	Rp172.635,86 Rp116.313,64 Rp97.784,18 Rp85.125,44 Rp82.006,62	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 9mm ESD-R-19 KEMET 1: Rp31.738,58 Non-Stocked Lead-Time 23 Weeks	Mfr. Part No. ESD-R-19 Mouser Part No 80-ESD-R-19	KEMET	Ferrite Toroids / Ferrite Rings 9mm Learn More about KEMET emi cores	Datasheet	Non-Stocked Lead-Time 23 Weeks	Rp31.738,58 Rp22.198,66 Rp18.896,38 Rp16.749,90 View Rp14.731,84 Rp11.337,83	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 26x14x15mm Ni-Zn Case and Tape ESD-R-25D-1 KEMET 1: Rp47.699,60 Non-Stocked Lead-Time 23 Weeks	Mfr. Part No. ESD-R-25D-1 Mouser Part No 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	Rp47.699,60 Rp33.022,80 Rp28.069,38 Rp24.583,64 View Rp21.648,28 Rp18.896,38	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 25.3x14.8x12.3mm Mn-Zn Coated ESD-R-25MK KEMET 1: Rp63.110,24 Non-Stocked Lead-Time 23 Weeks	Mfr. Part No. ESD-R-25MK Mouser Part No 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	Rp63.110,24 Rp43.480,02 Rp36.875,46 Rp32.472,42 View Rp28.069,38 Rp26.234,78	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 51x24.4x19mm 300MHz Ni-Zn 120C ESD-R-47N-H KEMET 1: Rp184.560,76 Non-Stocked Lead-Time 23 Weeks	Mfr. Part No. ESD-R-47N-H Mouser Part No 80-ESD-R-47N-H	KEMET	Ferrite Toroids / Ferrite Rings 51x24.4x19mm 300MHz Ni-Zn 120C Learn More about KEMET emi cores	Datasheet	Non-Stocked Lead-Time 23 Weeks	Rp184.560,76 Rp117.230,94 Rp100.903,00 Rp88.978,10 View Rp83.107,38 Rp82.923,92 Rp81.089,32 Rp80.722,40	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 59x34x21mm Mn-Zn Coated ESD-R-57-P KEMET 1: Rp371.506,50 Non-Stocked Lead-Time 23 Weeks	Mfr. Part No. ESD-R-57-P Mouser Part No 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	Rp371.506,50 Rp260.513,20 Rp241.983,74 Rp226.022,72 Quote Quote	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 61x33.2x25mm 10MHz Mn-Zn 120C ESD-R-57M-H KEMET 1: Rp411.500,78 Non-Stocked Lead-Time 23 Weeks	Mfr. Part No. ESD-R-57M-H Mouser Part No 80-ESD-R-57M-H	KEMET	Ferrite Toroids / Ferrite Rings 61x33.2x25mm 10MHz Mn-Zn 120C Learn More about KEMET emi cores	Datasheet	Non-Stocked Lead-Time 23 Weeks	Rp411.500,78 Rp252.074,04 Rp224.371,58	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 57x36x20mm 150kHz Mn-Zn 85C ESD-R-57SR KEMET 60: Rp275.190,00 Non-Stocked Lead-Time 23 Weeks	Mfr. Part No. ESD-R-57SR Mouser Part No 80-ESD-R-57SR	KEMET	Ferrite Toroids / Ferrite Rings 57x36x20mm 150kHz Mn-Zn 85C Learn More about KEMET emi cores	Datasheet	Non-Stocked Lead-Time 23 Weeks	Rp275.190,00	Min.: 60 Mult.: 15

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