Nanocrystalline Cores Emc Common Mode Choke Core For Converter

COMMON MODE CHOKE CORE

A common mode choke core (CMC) is a type of inductor core that is used to suppress electromagnetic interference (EMI) in electronic circuits. It is designed to filter out noise that is common to both signal lines, such as those found in a twisted pair cable, while allowing differential signals to pass through unimpeded.

Nanocrystalline material with high and stable temperature characteristics is suitable for the radio noise and line noise filters of various inverter devices, switching mode power supplies and signal lines.

For EMI-noise suppression in switched mode power supplies, frequency inverters and many other applications, nano-crystalline 1K107 cores offer significant advantages in volume and magnetic properties.

The common mode choke core is an effective way to reduce electromagnetic interference in electronic circuits, and it is commonly used in applications such as power supplies, communication systems, and audio equipment.

MATERIAL PROPERTIES

Transmart Common mode choke core

Saturated induction density	T	1.2
(μi) Permeability	Gs/Oe	8.5x10⁴
(10kHz) Permeability	Gs/Oe	8.5x10⁴
(100kHz) Permeability	Gs/Oe	2.0x10⁴
Curie temperature Tc	℃	570
(ρ)Density	g/cm³	7.2
(δ)Resistivity	μΩNaN	≥130
(k) Stack Factor	‒	≥0.8

TRANSMART INDUSTRIAL LIMITED

Nanocrystalline Common Mode Choke Cores

Transmart Part number	VAC Part number	Core dimensions		Iron cross section Afe cm2	Mean path length lFe cm	Weight mFe g	Permeability ( µ at 10kHz )		AL 10 kHz 100 kHz nominal μH	Saturation current typical 10 kHz 100 kHz A
		Core dimensions da x di x h mm x mm x mm	Finished core size OD ID H mm x mm x mm				Permeability ( µ at 10kHz )
		Core dimensions da x di x h mm x mm x mm	Finished core size OD ID H mm x mm x mm				Specified value	Design refer
NC-0178-L-w	W914	9.8 x 6.5 x 4.5	11.2 5.1 5.8	0.06	2.6	1.1	65600 ≤ µ` ≤ 127000	87,000	25.5 6.4	0.2 0.4
NC-0010-L-w	W902	12 x 8 x 4.5	14.1 6.6 6.3	0.07	3.1	1.7	72000 ≤ µ` ≤ 139000	97,000	28.0 6.8	0.2 0.4
NC-0226-L-w	W498	12.5 x 10 x 5	14.3 8.5 7.0	0.05	3.5	1.3	42200 ≤ µ` ≤ 81500	56,000	10.0 3.6	0.4 0.8
NC-0039-L-w	W865	15 x 10 x 4.5	17.1 7.9 6.5	0.09	3.9	2.6	72000 ≤ µ` ≤ 139000	94,000	27.0 6.7	0.3 0.5
NC-0217-L-w	W403	16 x 10 x 6	17.9 8.1 8.1	0.14	4.1	4	72000 ≤ µ`≤ 135000	97,000	43.0 10.1	0.3 0.6
NC-0217-L-w-01	W308	16 x 10 x 6	17.9 8.1 8.1	0.14	4.1	4	18000 ≤ µ` ≤ 35000	23,700	11.7 6.5	1.2 1.7
NC-0179-L-w	W515	17.5 x 12.6 x 6	19.0 11.0 8.0	0.12	4.7	4.1	72000 ≤ µ` ≤ 135000	96,000	30.0 6.9	0.3 0.7
NC-0044-L-W-01	W838	19 x 15 x 10	21.2 13.0 12.3	0.16	5.3	6.3	72000 ≤ µ` ≤ 130000	96,000	36.1 8.8	0.4 0.7
NC-0038-L-W	W409	20 x 12.5 x 8	22.6 10.3 10.2	0.24	5.1	9.0	72000 ≤ µ` ≤ 135000	97,000	55.2 13.6	0.4 0.7
NC-0038-L-w-01	W450	20 x 12.5 x 8	22.6 10.3 10.2	0.24	5.1	9.0	18100 ≤ µ` ≤35000	23,700	14.3 9.1	1.4 2.1
NC-0088-L-w-03	W523	25 x 20 x 10	27.6 17.4 12.8	0.20	7.1	10.4	60000 ≤ µ` ≤ 116000	80,000	28.4 7.3	0.6 1.1
NC-0141-L-w-01	W380	25 x 16 x 10	27.9 13.6 12.5	0.36	6.4	17.0	72000 ≤ µ` ≤ 135000	95,000	65.5 15.5	0.4 0.9
NC-0141-L-w-02	W451					17.0	15000 ≤ µ` ≤ 35000	24,300	17.0 11.5	1.7 2.6
NC-0141-L-w-04	W980					17.0	3300 ≤ µ` ≤ 6400 ( 100kHz )	4,400	3.2 3.1	9.3 9.6
NC-0008-L-w-01	W423	30 x 20 x 10	32.8 17.6 12.5	0.40	7.9	23.0	72000 ≤ µ` ≤ 135000	103,000	59.3 14.0	0.5 1.0
NC-0008-L-w-14	W358					23.0	19500 ≤ µ` ≤ 35200	25,500	15.5 11.1	2.1 3.1
NC-0008-L-w-11	W981					23.0	3280 ≤ µ` ≤ 6400 ( 100kHz )	4,400	2.9 2.8	11.4 11.8
NC-0023-L-b-02	W424	40 x 25 x 15	43.1 22.5 18.5	0.86	10.2	64	72000 ≤ µ` ≤ 135000	94,000	101.0 23.1	0.7 1.4
NC-0023-L-b-06	W453	40 x 25 x 15	43.1 22.5 18.5	0.86	10.2	64	17850 ≤ µ` ≤ 34500	23,700	25.4 17.2	2.9 4.2
NC-0177-L-b	V102	45 x 30 x 15	48.3 26.4 18.2	0.86	11.8	74	72000 ≤ µ` ≤ 135000	96,000	87.5 20.3 24.3 15.9	0.8 1.6 3.0 4.5
NC-0177-L-b-01	V118					74	20000 ≤ µ` ≤ 38700	26,700	24.3 15.9	3.0 4.5
NC-0177-L-b-02	V101					74	12900 ≤ µ` ≤ 25000	17,200	15.7 14.3	4.6 5.8
NC-0016L-w-02	W516	50 x 40 x 20	53.5 36.3 23.4	0.76	14.1	79	50000 ≤ µ` ≤ 97000	66,000	45.3 14.0	1.4 2.7
NC-0016-L-w-03	W565	50 x 40 x 20	53.5 36.3 23.4	0.76	14.1	79	20000 ≤ µ` ≤ 38700	26,600	18.0 10.0	3.5 5.3
NC-0017-L-b	W517	63 x 50 x 25	67.3 46.5 28.6	1.24	17.8	161	50000 ≤ µ` ≤ 97000	67,000	58.6 18.1	1.8 3.5
NC-0017-L-b-01	V110					161	20000 ≤ µ` ≤ 38700	26,500	23.3 13.5	4.4 6.7
NC-0017-L-b-02	W985					163	2850 ≤ µ` ≤ 5510 ( 100kHz )	3,700	3.3 3.2	30.2 30.9
NC-0147-L-b	V140	80 x 50 x 20	86.0 44.7 25.7	2.28	20.4	342	71250 ≤ µ` ≤ 137000	95,000	94 28	1.4 2.8
NC-0147-L-b-02	W531					342	18700 ≤ µ` ≤ 36300	24,900 5,170	35.0 24.0	5.5 8.2
NC-0147-L-b-04	V091					347	≥ 5170	5170	9.6 9.2	26.4 27.3
NC-0096-L-b-01	W518	90 x 60 x 20	95.4 54.7 24.7	2.28	23.6	395	50000 ≤ µ` ≤ 97000	67,000 3,700	81.0 25.1	2.4 4.5
NC-0096-L-b-02	W984	90 x 60 x 20	95.4 54.7 24.7	2.28	23.6	400	2800 ≤ µ` ≤ 5400 ( 100kHz )	3700	4.6 4.5	40.9 41.8
NC-0188-L-w	V082	100 x 80 x 25	105.5 75.0 29.6	1.90	28.3	379	50000 ≤ µ` ≤ 97000	67,000	56.3 16.9 14.5 13.1	2.8 5.3 10.9 13.8
NC-0188-L-w-01	V081	100 x 80 x 25	105.5 75.0 29.6	1.90	28.3	379	12900 ≤ µ` ≤ 25000	17,200	14.5 13.1	10.9 13.8
NC-0144-L-b	W468	102 x 76 x 25	108.1 70.0 30.3	2.47	28.0	508	50000 ≤ µ` ≤ 97000	67,000	68.8 21.6	3.8 6.7
NC-0144-L-b-02	V080					508	12900 ≤ µ` ≤ 25000	17,200	19.1 17.2	10.7 13.6
NC-0144-L-b-01	W947					515	2840 ≤ µ` ≤ 5480 ( 100kHz )	3,800	4.3 4.2	47.4 48.5
NC-0032-L-b-03	V074	160 x 130 x 25	166.9 123.9 30.5	2.74 2.74 2.74 2.85	45.6 45.6 45.6 45.6	917	27680 ≤ µ` ≤ 59590	36,000	26.8 13.7	8.4 13.6
NC-0032-L-b-02	V088					917	20000 ≤ µ` ≤ 38700	26,500	20.1 13.1	11.3 17.1
NC-0032-L-b	V066					917	12900 ≤ µ` ≤ 25000	17,200	12.9 11.7	17.6 22.3
NC-0032-L-b-04	W982					967	2800 ≤ µ` ≤ 5400 ( 100kHz )	3,700	3.0 2.9	79.3 81.1

APPLICATIONS

A common mode choke core is a type of inductor that is specifically designed to suppress common mode noise in electronic circuits. It consists of a ferromagnetic core with two windings wound around it in opposite directions, and is used to filter out unwanted signals that can cause interference in electronic equipment.

Here are some applications of common mode choke cores:

● EMC filters / Automotive parts

● Switch-mode power supplies / Solar inverters
● Frequency converter / Wind generators
● Home appliances / UPS / Welding equipments

Common mode choke cores are an essential component in many electronic systems where reducing electromagnetic interference is critical to maintaining signal quality and system reliability.

Features 01

High inductance with a low number of turns and small winding capacities

Features 02

Broadband insertion loss curve with good damping performance over a wide frequency band

Features 03

Small choke size for volume and weight optimized solutions

Features 04

Excellent impedance character

Features 05

Low magnetostriction result in low noise components

Core finishing

Core finishing can be plastic case or epoxy coating.Case materials available: PBT(130℃), FR52G30(140℃), FR530(155℃), PPS(180℃) .Halogen free case is available upon request.

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Nanocrystalline Common Mode Choke Core Specification

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