Made in Japan
Manufacturer: SEIWA ELECTRIC MFG.CO.,LTD
Model: E04

Split Cores SR, SRM and SRS Types

Product Outline and Features

The full lineup of high-frequency band from low-frequency band.
To suit your needs, we offer various types, such as ring-type, split type, flat type etc.
Low-frequency splitting type is equivalent to the characteristics of ring type.

Part No.	Frequency band	Dimensions (mm)					Max. Applicable Cable Size (mm)
		A	B	C	D	E
E04SR311835F	High-frequency	35.0	—	17.5	30.8	12.2	17.5X2.6
E04SR150718		22.0	18.0	7.0	15.0	—	∅7.0
E04SR200917		21.0	17.0	9.0	20.0	—	∅9.0
E04SR200932		36.0	32.0	9.0	19.5	—	∅9.0
E04SR211132		36.0	32.0	11.0	20.5	—	∅11.0
E04SR301334		39.0	34.0	13.0	30.0	—	∅13.0
E04SR401938		61.0	38.0	19.0	40.0	—	∅19.0
E04SR130525A		25.0	20.0	5.0	12.8	11.2	∅ 3.0〜5.0
E04SR130525AB		25.0	20.0	5.0	12.8	11.2	∅ 3.0〜5.0
E04SR170730A		30.0	23.0	7.0	16.5	15.0	∅ 4.0〜7.0
E04SR170730AB		30.0	23.0	7.0	16.5	15.0	∅ 4.0〜7.0
E04SR200935A		35.0	28.0	9.0	19.5	17.4	∅ 6.0〜9.0
E04SR200935AB		35.0	28.0	9.0	19.5	17.4	∅ 6.0〜9.0
E04SR241336A		36.0	29.0	13.0	23.5	22.0	∅ 10.0〜13.0
E04SR241336AB		36.0	29.0	13.0	23.5	22.0	∅ 10.0〜13.0
E04SRS200917S		24.6	20.8	8.4	24.5	24.2	∅8.0
E04SRS251512		19.0	15.0	14.0	31.0	29.5	∅14.0
E04SRM281312	Low frequency.	16.0	—	12.0	35.0	33.0	∅12.0
E04SRM381913		17.0	—	18.0	45.0	43.0	∅18.0
E04SRM472715		20.0	—	27.0	54.0	52.0	∅26.0
E04SRM563218		23.0	—	32.0	65.0	62.0	∅31.0

SR type: Intended to be fastened with a supplied binding band.
SR-A,SR-F type : Intended to be fixed to a cable.
SR-AB type : The plastic resin case is black.
E04SRB : Intended to be fixed to an enclosure. Mounting hole diameter range 4.8-4.9 mm, Thickness range 0.5-2.0mm (for E04SR200917)
E04SRB: Intended to be fixed to an enclosure. Mounting hole diameter range 4.8-4.9
Dimensions

SR-F type	SR type	SRM type	E04SR401938
SR-A type SR-AB type	E04SRB	E04SRMB	SRS type

In mm

Split Cores SR, SRM and SRS Types

Impedance-frequency Curve

High frequency

Low frequency

Non-split Ring Cores RC and RM and RMX Types

Product Outline and Features

• The full lineup of high-frequency band from low-frequency band.
• Non-split ring cores are available in a wide diameter range from 8.0 to 61.0.
• The surface is coated with insulating paint. (E04RM type)

Part No.	Frequency band	Dimensions (mm)
		A	B	C
E04RC100505	High frequency	10.0	5.0	5.0
E04RC110519		11.0	5.0	18.5
E04RC120715		11.8	7.3	15.0
E04RC120916		12.0	8.5	16.0
E04RC151008		14.5	10.2	8.0
E04RC150719		15.0	7.0	19.0
E04RC160928		16.0	9.0	28.0
E04RC161010		16.0	10.0	10.0
E04RC170813		16.5	8.2	13.0
E04RC170816		16.5	8.2	16.0
E04RC181006		17.5	9.5	6.4
E04RC181029		17.5	9.5	28.5
E04RC211010		20.5	10.2	10.0
E04RC241114		23.6	11.4	14.0
E04RC251512		25.0	15.0	12.0
E04RC281613		28.0	16.0	13.0
E04RC281620		28.0	16.0	20.0
E04RC311908		31.0	19.0	8.0
E04RC613620		61.0	35.5	20.0

Dimensions

Part No.	Frequency band	Dimensions (mm)
		A	B	C
E04RM201010	Low frequency	20.0	10.0	10.0
E04RM251512		25.0	15.0	12.0
E04RM381913		38.0	19.0	12.7
E04RM472715		47.0	27.0	15.0
E04RMX201010		20.0	10.0	10.0
E04RMX251512		25.0	15.0	12.0
E04RMX381913		38.0	19.0	12.7
E04RMX472715		47.0	27.0	15.0

Impedance-frequency Curve

Ferrite Cores for FPC FD Type

Product Outline and Features

You can choose the size of the wide variations depending on the size you wish.

Dimensions

Part No.	Dimensions (mm)
	A	B	C	D	E
E04FD070503	2.0	9.5	3.0	0.5	7.0
E04FD070504	2.0	9.5	4.0	0.5	7.0
E04FD070505	2.0	9.5	5.0	0.5	7.0
E04FD110503	2.0	13.5	3.0	0.5	11.0
E04FD110504	2.0	13.5	4.0	0.5	11.0
E04FD110505	2.0	13.5	5.0	0.5	11.0
E04FD110506	2.0	13.5	6.0	0.5	11.0
E04FD110508	2.0	13.5	8.0	0.5	11.0
E04FD110510	2.0	13.5	10.0	0.5	11.0
E04FD130503	2.0	15.5	3.0	0.5	13.0
E04FD130504	2.0	15.5	4.0	0.5	13.0
E04FD130505	2.0	15.5	5.0	0.5	13.0
E04FD130506	2.0	15.5	6.0	0.5	13.0
E04FD130508	2.0	15.5	8.0	0.5	13.0
E04FD130510	2.0	15.5	10.0	0.5	13.0

Ferrite Cores for FPC and FFC FG Types

Part No.	Dimensions (mm)					Applicable Cable
	A	B	C	D	E
E04FG170808	5.0	21.0	8.0	0.8	17.0	For FPC
E04FG200712	3.0	23.0	12.0	0.7	20.0
E04FG210810	3.0	25.0	10.0	0.8	21.0
E04FG270712	3.0	31.0	12.0	0.7	27.0
E04FG280808	5.0	32.0	8.0	0.8	28.0
E04FG280812	5.0	32.0	12.0	0.8	28.0
E04FG280820	5.0	32.0	20.0	0.8	28.0
E04FG340812	5.0	38.0	12.0	0.8	34.0
E04FG460808	5.0	50.0	8.0	0.8	46.0
E04FG460812	5.0	50.0	12.0	0.8	46.0
E04FG530812	5.0	57.0	12.0	0.8	53.0
E04FG171308	6.5	21.5	8.0	1.3	16.5	For FFC
E04FG191308	6.5	24.0	8.0	1.3	19.0
E04FG221308	6.5	27.0	8.0	1.3	22.0
E04FG221312	6.5	27.0	12.0	1.3	22.0
E04FG281308	6.5	33.5	8.0	1.3	28.0
E04FG281310	6.5	33.5	10.0	1.3	28.0
E04FG281312	6.5	33.5	12.0	1.3	28.0
E04FG351312	6.5	40.0	12.0	1.3	34.8
E04FG401308	6.5	45.2	8.0	1.3	40.0
E04FG401312	6.5	45.2	12.0	1.3	40.0
E04FG441308	6.5	49.8	8.0	1.3	44.0
EO4FG441312	6.5	49.6	12.0	1.3	44.0
EO4FG521312	7.0	57.9	12.0	1.3	52.0

Impedance-frequency Curve