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 Toroids / Ferrite Rings 10.5mm ESD-R-15C-1 KEMET 1: Rp15.777,56 10In Stock	Mfr. Part No. ESD-R-15C-1 Mouser Part No 80-ESD-R-15C-1	KEMET	Ferrite Toroids / Ferrite Rings 10.5mm Learn More about KEMET emi cores	Datasheet	10In Stock	Rp15.777,56 Rp10.970,91 Rp9.466,54 Rp8.420,81 View Rp7.448,48 Rp6.274,33 Rp5.155,23	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 11.6mm ESD-R-16 KEMET 1: Rp19.997,14 1.032In Stock	Mfr. Part No. ESD-R-16 Mouser Part No 80-ESD-R-16	KEMET	Ferrite Toroids / Ferrite Rings 11.6mm Learn More about KEMET emi cores	Datasheet	1.032In Stock	Rp19.997,14 Rp13.777,85 Rp11.796,48 Rp10.457,22 View Rp9.411,50 Rp7.723,67 Rp7.246,67 Rp6.843,06 Rp6.531,18	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 22x7.7x14mm 10MHz Mn-Zn 120C ESD-R-19M-H KEMET 1: Rp45.681,54 380In Stock	Mfr. Part No. ESD-R-19M-H Mouser Part No 80-ESD-R-19M-H	KEMET	Ferrite Toroids / Ferrite Rings 22x7.7x14mm 10MHz Mn-Zn 120C Learn More about KEMET emi cores	Datasheet	380In Stock	Rp45.681,54 Rp31.371,66 Rp26.785,16 Rp21.831,74 View Rp18.712,92 Rp17.465,39	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 14mm ESD-R-25 KEMET 1: Rp43.663,48 300In Stock	Mfr. Part No. ESD-R-25 Mouser Part No 80-ESD-R-25	KEMET	Ferrite Toroids / Ferrite Rings 14mm Learn More about KEMET emi cores	Datasheet	300In Stock	Rp43.663,48 Rp29.537,06 Rp25.134,02 Rp22.198,66 View Rp19.446,76 Rp16.144,48	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 13.9mm ESD-R-25B KEMET 1: Rp48.433,44 500In Stock	Mfr. Part No. ESD-R-25B Mouser Part No 80-ESD-R-25B	KEMET	Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 13.9mm Learn More about KEMET emi cores	Datasheet	500In Stock	Rp48.433,44 Rp33.389,72 Rp28.436,30 Rp25.134,02 View Rp22.015,20 Rp19.263,30	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 15mm ESD-R-25D-8 KEMET 1: Rp49.717,66 227In Stock 173On Order	Mfr. Part No. ESD-R-25D-8 Mouser Part No 80-ESD-R-25D-8	KEMET	Ferrite Toroids / Ferrite Rings 15mm Learn More about KEMET emi cores	Datasheet	227In Stock 173On Order	Rp49.717,66 Rp34.307,02 Rp29.353,60 Rp25.867,86 View Rp22.565,58 Rp19.446,76	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 29x12.7x16mm 10MHz Mn-Zn 120C ESD-R-25M-H KEMET 1: Rp63.110,24 240In Stock	Mfr. Part No. ESD-R-25M-H Mouser Part No 80-ESD-R-25M-H	KEMET	Ferrite Toroids / Ferrite Rings 29x12.7x16mm 10MHz Mn-Zn 120C Learn More about KEMET emi cores	Datasheet	240In Stock	Rp63.110,24 Rp43.480,02 Rp36.875,46 Rp32.288,96 View Rp28.069,38 Rp26.234,78	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 15mm ESD-R-25S KEMET 1: Rp43.480,02 245In Stock	Mfr. Part No. ESD-R-25S Mouser Part No 80-ESD-R-25S	KEMET	Ferrite Toroids / Ferrite Rings 15mm Learn More about KEMET emi cores	Datasheet	245In Stock	Rp43.480,02 Rp28.986,68 Rp24.767,10 Rp23.849,80 View Rp20.914,44 Rp16.364,63	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 27x19x15mm Mn-Zn Coated ESD-R-27S KEMET 1: Rp45.681,54 325In Stock	Mfr. Part No. ESD-R-27S Mouser Part No 80-ESD-R-27S	KEMET	Ferrite Toroids / Ferrite Rings 27x19x15mm Mn-Zn Coated Learn More about KEMET emi cores	Datasheet	325In Stock	Rp45.681,54 Rp31.555,12 Rp26.968,62 Rp23.666,34 View Rp20.730,98 Rp20.180,60 Rp17.887,35	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 16mm ESD-R-28C KEMET 1: Rp48.616,90 561In Stock	Mfr. Part No. ESD-R-28C Mouser Part No 80-ESD-R-28C	KEMET	Ferrite Toroids / Ferrite Rings 16mm Learn More about KEMET emi cores	Datasheet	561In Stock	Rp48.616,90 Rp33.573,18 Rp28.619,76 Rp25.134,02 View Rp22.015,20 Rp18.896,38 Rp18.712,92	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 15.8mm ESD-R-28C-1 KEMET 1: Rp59.257,58 377In Stock	Mfr. Part No. ESD-R-28C-1 Mouser Part No 80-ESD-R-28C-1	KEMET	Ferrite Toroids / Ferrite Rings 15.8mm Learn More about KEMET emi cores	Datasheet	377In Stock	Rp59.257,58 Rp40.911,58 Rp34.673,94 Rp30.637,82 View Rp26.785,16 Rp23.666,34	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 32x19x15.8mm Mn-Zn Coated ESD-R-31-P KEMET 1: Rp89.528,48 270In Stock	Mfr. Part No. ESD-R-31-P Mouser Part No 80-ESD-R-31-P	KEMET	Ferrite Toroids / Ferrite Rings 32x19x15.8mm Mn-Zn Coated Learn More about KEMET emi cores	Datasheet	270In Stock	Rp89.528,48 Rp61.275,64 Rp51.919,18 Rp45.131,16 Rp39.443,90	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 31x20x14.9mm 150kHz Mn-Zn 85C ESD-R-31SR KEMET 1: Rp68.980,96 22In Stock 300Expected 01/02/2027	Mfr. Part No. ESD-R-31SR Mouser Part No 80-ESD-R-31SR	KEMET	Ferrite Toroids / Ferrite Rings 31x20x14.9mm 150kHz Mn-Zn 85C Learn More about KEMET emi cores	Datasheet	22In Stock 300Expected 01/02/2027	Rp68.980,96 Rp47.332,68 Rp40.361,20 Rp35.224,32 View Rp31.188,20 Rp31.004,74 Rp30.821,28	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 17.5mm ESD-R-38 KEMET 1: Rp87.877,34 137In Stock	Mfr. Part No. ESD-R-38 Mouser Part No 80-ESD-R-38	KEMET	Ferrite Toroids / Ferrite Rings 17.5mm Learn More about KEMET emi cores	Datasheet	137In Stock	Rp87.877,34 Rp60.174,88 Rp46.598,84 Rp40.361,20 Rp38.526,60	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 39x17.5x14mm Mn-Zn Case and Tape ESD-R-38-1 KEMET 1: Rp132.091,20 63In Stock	Mfr. Part No. ESD-R-38-1 Mouser Part No 80-ESD-R-38-1	KEMET	Ferrite Toroids / Ferrite Rings 39x17.5x14mm Mn-Zn Case and Tape Learn More about KEMET emi cores	Datasheet	63In Stock	Rp132.091,20 Rp89.528,48 Rp68.614,04 Rp62.009,48	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 39.5x18x14mm Mn-Zn Coated ESD-R-38-P KEMET 1: Rp175.387,76 133In Stock	Mfr. Part No. ESD-R-38-P Mouser Part No 80-ESD-R-38-P	KEMET	Ferrite Toroids / Ferrite Rings 39.5x18x14mm Mn-Zn Coated Learn More about KEMET emi cores	Datasheet	133In Stock	Rp175.387,76 Rp118.148,24 Rp89.895,40 Rp88.060,80 Rp86.593,12	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 17.9mm ESD-R-38B KEMET 1: Rp98.518,02 222In Stock	Mfr. Part No. ESD-R-38B Mouser Part No 80-ESD-R-38B	KEMET	Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 17.9mm Learn More about KEMET emi cores	Datasheet	222In Stock	Rp98.518,02 Rp67.146,36 Rp56.872,60 Rp49.717,66 View Rp44.580,78 Rp44.030,40	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 17.5mm ESD-R-38C-1 KEMET 1: Rp141.447,66 165In Stock	Mfr. Part No. ESD-R-38C-1 Mouser Part No 80-ESD-R-38C-1	KEMET	Ferrite Toroids / Ferrite Rings 17.5mm Learn More about KEMET emi cores	Datasheet	165In Stock	Rp141.447,66 Rp95.949,58 Rp81.639,70 Rp70.632,10 Rp65.495,22	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 19mm ESD-R-38D KEMET 1: Rp84.941,98 150In Stock	Mfr. Part No. ESD-R-38D Mouser Part No 80-ESD-R-38D	KEMET	Ferrite Toroids / Ferrite Rings 19mm Learn More about KEMET emi cores	Datasheet	150In Stock	Rp84.941,98 Rp58.156,82 Rp49.350,74 Rp43.113,10 Rp34.673,94	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 42x16.7x17mm 10MHz Mn-Zn 120C ESD-R-38M-H KEMET 1: Rp101.086,46 170In Stock	Mfr. Part No. ESD-R-38M-H Mouser Part No 80-ESD-R-38M-H	KEMET	Ferrite Toroids / Ferrite Rings 42x16.7x17mm 10MHz Mn-Zn 120C Learn More about KEMET emi cores	Datasheet	170In Stock	Rp101.086,46 Rp70.815,56 Rp54.487,62 Rp54.304,16	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 42x16.7x17mm 300MHz Ni-Zn 120C ESD-R-38N-H KEMET 1: Rp113.928,66 69In Stock	Mfr. Part No. ESD-R-38N-H Mouser Part No 80-ESD-R-38N-H	KEMET	Ferrite Toroids / Ferrite Rings 42x16.7x17mm 300MHz Ni-Zn 120C Learn More about KEMET emi cores	Datasheet	69In Stock	Rp113.928,66 Rp77.603,58 Rp59.624,50 Rp59.441,04 Rp52.286,10	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 39x17.5x14mm Mn-Zn Case ESD-R-38SA KEMET 1: Rp89.528,48 63In Stock	Mfr. Part No. ESD-R-38SA Mouser Part No 80-ESD-R-38SA	KEMET	Ferrite Toroids / Ferrite Rings 39x17.5x14mm Mn-Zn Case Learn More about KEMET emi cores	Datasheet	63In Stock	Rp89.528,48 Rp61.275,64 Rp47.516,14 Rp41.095,04 Rp39.443,90	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 38x19x12.7mm 150kHz Mn-Zn 85C ESD-R-38SR KEMET 1: Rp118.698,62 137In Stock	Mfr. Part No. ESD-R-38SR Mouser Part No 80-ESD-R-38SR	KEMET	Ferrite Toroids / Ferrite Rings 38x19x12.7mm 150kHz Mn-Zn 85C Learn More about KEMET emi cores	Datasheet	137In Stock	Rp118.698,62 Rp80.538,94 Rp62.192,94 Rp54.854,54	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 50x23x18mm Mn-Zn Case and Tape ESD-R-47-1 KEMET 1: Rp182.909,62 170In Stock 20Expected 10/12/2026	Mfr. Part No. ESD-R-47-1 Mouser Part No 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 10/12/2026	Rp182.909,62 Rp123.101,66 Rp103.287,98 Rp90.445,78 Rp88.794,64	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 25.5mm ESD-R-47D-1 KEMET 1: Rp179.240,42 171In Stock	Mfr. Part No. ESD-R-47D-1 Mouser Part No 80-ESD-R-47D-1	KEMET	Ferrite Toroids / Ferrite Rings 25.5mm Learn More about KEMET emi cores	Datasheet	171In Stock	Rp179.240,42 Rp120.716,68 Rp101.086,46 Rp88.794,64	Min.: 1 Mult.: 1

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