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Tomita EP Type Ferri...

Tomita EP Type Ferrite Core

EP Ferrite Core has the advantages of good magnetic shielding effect, small distributed capacitance, low transmission loss, high inductance, small leakage inductance, uniform magnetic field distribution, etc. The skeleton is equipped with multi-way connectors, which makes it easy to design multi-way output transformers.

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EP Cores are used in broadband transformers, inductors, isolation transformers, matching transformers, and are widely used in program-controlled switch terminals and precision electronic equipment.

Dimensions and Effective Parameter

Cores	Dimensions(mm)							Effective Parameter					Weight (g)
Cores	D1	D2	D3	D4	D5	H1	H2	C1 (mm^-1)	Ae (mm²)	le (mm)	Ve (mm³)	Aw (mm²)	Weight (g)
EP-7	9.2±0.2	7.4±0.2	3.4 +0/-0.2	6.5 +0/-0.3	1.8 +0/-0.2	7.5±0.2	5.0 +0.6/-0	1.52	10.3	15.7	163	10.9	1.5
EP-10	11.5±0.3	9.4±0.2	3.45 +0/-0.3	7.85 +0/-0.4	1.95 +0/-0.25	10.4 +0/-0.4	7.2 +0.4/-0	1.70	11.3	19.3	218	22.6	2.7
EP-13	12.5±0.3	10.0±0.3	4.5 +0/-0.3	9.0 +0/-0.4	2.5 +0/-0.25	13.0 +0.1/-0.4	9.0 +0.4/-0	1.24	19.6	24.3	476	26.0	4.5
EP-17	18.0±0.4	12.0±0.4	5.85 +0/-0.35	11.25 +0/-0.5	3.25±0.2	17.0 +0/-0.4	11.0 +0.6/-0	0.84	33.9	28.5	964	35.7	12
EP-20	24.0±0.5	16.5±0.4	9.0 +0/-0.5	15.3 +0/-0.7	4.5±0.2	21.6 +0/-0.4	14.0 +0.6/-0	0.51	78.3	39.8	3110	55.4	27

Electrical Characteristics

Core	AL-Value(nH/N2) Without air gap
Core	2H1	2E2D	2G1	2G8
EP-7	4760min	3600min	2000±25%	1350±25%
EP-10	4760min	3600min	2000±25%	1350±25%
EP-13	7350min	4900min	2850±25%	1650±25%
EP-17	12500min	7000min	4300±25%	2600±25%
EP-20	16100min	13000min	7700±25%	3600±25%

Material:2G8 (Low core loss)

Code	AL-Value(nH/n²)　With air gap
Code	AL***	AL40	AL63	AL100	AL160	AL250	AL315	AL400	AL500
2G8-EP- 7-AL***	Gap(mm)≒	0.380	0.200	0.110	0.060	0.030
2G8-EP-10-AL***	Gap(mm)≒	0.380	0.200	0.110	0.060	0.030
2G8-EP-13-AL***	Gap(mm)≒		0.390	0.210	0.120	0.070	0.045	0.030	0.020

Material:2E2D (Low THD)

Code	AL-Value(nH/n²) With air gap
Code	AL***	AL40	AL63	AL100	AL160	AL250	AL315	AL400	AL500
2E2D-EP- 7N-AL***	Gap(mm)≒	0.40	0.220	0.120	0.070	0.040
2E2D -EP-10N-AL***	Gap(mm)≒	0.40	0.220	0.120	0.070	0.040
2E2D-EP-13N-AL***	Gap(mm)≒		0.400	0.220	0.128	0.070	0.055	0.040	0.028

Shenzhen Gaorunxin Technology Co., Ltd

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