Amorphous Choke Cores with air gap（OC） - Cores

Cores

Amorphous Choke Cores with air gap（OC）

Release date: 2017/11/13　Browse times：

1. Features：
ØLarge DC bias characteristics,
ØPermeabilityμ=180~200
ØGood frequency and temperature characteristics
ØLow core loss

2. Applications：
ØOutput choke coil for SMPS
ØChoke coil for DC/DC converter
ØPFC choke for UPS
Ø Choke coil for adapter and battery charger
ØPFC choke for PDP TV set
Ø PFC choke for inverter circuit

3. Specifications and electric parameters

Grade	Core dimensions（mm）			Finished dimensions（mm）			Electric Parameters
Grade	ID	OD	H	ID	OD	H	AL(μH)	AT
5012A	12	20	5.0	9.7	22.5	8.0	0.085	180
5012B	12	20	8.0	9.7	22.5	11.0	0.120	180
5016	16	26	10.0	14.3	30.2	13.5	0.132	280
5020	20	32	10.0	17.5	34.5	13.5	0.120	350
5025A	25	40	12.5	23.0	45.0	16.0	0.150	370
5025B	25	40	15.0	23.0	45,0	19.0	0.200	370
5032	32	50	15.0	29.0	55.0	18.0	0.126	470
5040	40	64	15.0	37.8	67.5	19.0	0.160	600
5050	50	80	20.0	47.0	85,0	24.0	0.200	730
5056	56	92	25.0	53.0	97.0	29.0	0.250	800

Technical parameter for winding choke

grade	Core Dimensions (mm)	Normal rated Current I(A)	inductance L(μH)	AL (μH)	Wing turns N
5012B	12×20×8.0	3.0 5.0 8.0 10.0	400 155 60 40	0.115	60 37 23 19
5016	16×26×10	3.0 5.0 8.0 10.0 15.0 20.0	1000 300 155 100 45 25	0.133	87 48 34 28 18 14
5020	20×32×10	5.0 8.0 10.0 15.0 20.0	505 255 165 75 45	0.120	65 46 37 25 19
5025A	25×40×12.5	5.0 8.0 10.0 15.0 20.0	520 255 170 75 45	0.140	61 43 35 23 18

Physical characteristic

Density
g/cm3

Curie
Temperature
Tc(℃)

Crystallization
Temperature
Tx(℃)

Saturation
Bs(T)

Electrical Resistivity
ρ(Ω-cm)

Saturation
Magnetostriction
λs(10-6)

7.3

410

530

1.4

130

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