Soft Magnetic Metal Powder Cores

SPA Ferrite Domen

Soft Magnetic Metal Powder Cores

MPP Cores

Molybdenum Permalloy Powder cores (MPP) find the wide application in electronic and electrical circuits where high Q-value of inductance's and long-term stability of parameters are the critical factors. They effectively show their attractive features as energy storage chokes in SMPS, as electronic ballasts in energy saving light lamps, as inductive elements of various filters etc.

Material	m_i	fc MHz	tgd/ m ^.10^-3			Tkm^.10^-6, 1/ ^oC
			f kHz	Hm, A/m		Tkm^.10^-6, 1/ ^oC
			f kHz	24	72	(-60 + 85)^oC	(-60 +155)^oC
MP 14	12...14	< 5.0	1000 3000	-	20.0 50.0	-	<120
MP 20	20	< 1.0	1000	-	30.0	<120	-
MP 60	60	< 0.3	30 100	12.0	5.9 12.9	-	<100
MP 100	100	< 0.3	30 100	22.8	10.3 24.3	<100	<120
MP 140	140	< 0.1	30 100	48.5	20.0 51.5	<120	<150
MP 160	160	< 0.1	30 100	105.0	37.5 108.0	<150	<180
MP 250	250	< 0.03	30	45.0	50.0	<200	<250
MP 300	300	< 0.01	5	50.0	-	-	<300

High Flux Cores

High Flux cores are based on permalloy material with 50% Ni compared with 81% Ni for molypermalloy.
They feature high saturation flux density of 15.000 G vs. 7.000 G for MPP cores and are ideal for in-line filters and for pulse chokes where they demonstrate high energy storage.

Material	m_i	fc MHz	tgd/ m ^.10^-3			Tkm^.10^-6, 1/ ^oC
			f kHz	Hm, A/m		Tkm^.10^-6, 1/ ^oC
			f kHz	24	72	(-60 + 85)^oC	(-60 +155)^oC
MHF 14	12...14	< 5.0	1000 3000	-	20.0 50.0	-	<120
MHF 20	20	< 1.0	1000	-	30.0	<120	-
MHF 60	60	< 0.3	30 100	12.0	5.9 12.9	-	<100
MHF 125	125	< 0.3	30 100	31.3	16.3 34.3	<100	<120
MHF 147	147	< 0.1	30 100	58.5	30.0 61.5	<120	<150
MHF 160	160	< 0.1	30 100	105.0	37.5 108.0	<150	<180

KOOL Mm Cores

KOOL Mm cores are based on Al-Si-Fe alloy which is less expensive than Molypermalloy and Permalloy 50% Ni. These cores are widely used in RF input chokes, electronic ballasts, in filters of SMPS, pulse transformers etc.

Material	m_i	fc, MHz Ha=8 A/m Q=50	tgd/ m ^.10^-3 Ha=4.8 A/m f =100 kHz	d_h^.10^-4 m/A	d_f^.10^-6 1/Hz	Tkm^.10^-6, 1/ ^oC -70...+20^oC	Bm T	Br T	Hc A/m
TCH125	119...131	0.1	< 240	< 1.4	< 2500	< -800	0.6	0.065	450
TCH 90	79...91	0.02	< 83.5	< 1.1	< 1150	< -600	0.5	0.055	390
TCH 60	53...63	0.07	< 27.4	< 0.81	< 300	< -400	0.42	0.050	400
TCHK 55	48...58	0.07	< 27.4	< 0.81	< 300	-150...+50	0.42	0.050	400
BCH32	28...33	0.2	< 9.9	< 0.38	< 98	< -250	0.27	0.025	400
BCH 22	19...24	0.7	< 4.6	< 0.25	< 25	< -200	0.20	0.015	500
BCHK 22	19...24	0.7	< 4.6	< 0.25	< 25	-50...+50	0.20	0.015	500

K - material is temperature compensated

Iron Powder Cores

Iron powder cores are based on atomized iron grains. Generally, these cores are the cheapest among all the metal powder cores, especially so in big-sized cores.
They are used in circuits where high saturation flux density and operation at high power levels are required. Their Curie temperature is no less then 150^oC.
Operation frequency of materials: AIP10, AIP22, AIP35 - up to 500 kHz
AIP55, AIP60, AIP75 - up to 75 kHz

Material	m_i	tgd/ m ^.10^-3 Ha=24A/m f =100 kHz	Tkm^.10^-6, 1/ ^oC	Psp W/cm³	d g/ cm³	A_L %
AIP10	10	< 2.0	< 95	22	5.0	+ 5
AIP22	22	< 54.0	< 415	160	6.0	+ 10
AIP35	35	< 6.0	< 255	30	6.5	+ 10
AIP55	55	< 6.5	< 385	32	6.6	+ 10
AIP60	60	< 40.0	< 950	110	6.9	+ 10
AIP75	75	< 30.0	< 825	82	7.0	+ 25

Dimensions of Iron powder cores

Iron powder cores are available in the same dimensions as that for MPP cores.
Besides Ferrite Domen Co. produces also tubes - 5x1.5x7; 8x2.8x10; 10x4x20; 16x8x30 mm;
plates - 50x25x10; 50x50x10 mm and
U-type cores of iron powder materials.