Amorphous Magnetic Parts

If you have any inquiries, please contact us.

Tokyo+81-3-3457-4874

Open 9:00am-5:00pm (business days)

AMOBEADS™ and SPIKE KILLER™ Noise Suppression Devices

Our AMOBEADS™ and SPIKE KILLER™ noise inhibitor parts are amorphous magnetic parts with a high magnetic permeability. They have a higher noise suppression effect than CR snubbers and ferrite beads, and are effective as measures against harmonic regulation. AMOBEADS™ is particularly useful for situations in which immediate measures against noise are required, as it can be directly placed onto MOSFET and diode leads with no machining of the circuit board required. Our range also includes SPIKE KILLER™, which has an even stronger noise inhibiting effect than AMOBEADS™.

AMOBEADS™<sup></sup> and SPIKE KILLER™<sup></sup> Noise Suppression Devices

Standard Specifications

You can sort by clicking the "▼" in the heading "Finished dimensions" or "Total magnetic flux" and select the product name you want.

Type No.	Finished Dimensions [mm]			Total Flux	AL value	Series
Type No.	O.D. max	I.D. min	H.T. max	φc[μWb]min	L[μH]min	Series
AB 3 × 2 × 3 W	4.0	1.5	4.5	0.9	3.0	AMOBEADS™
AB 3 × 2 × 4.5 W	4.0	1.5	6.0	1.3	5.0	AMOBEADS™
AB 4 × 2 × 4.5 W	5.0	1.5	6.0	2.7	9.0	AMOBEADS™
AB 4 × 2 × 6 W	5.0	1.5	7.5	3.6	12.0	AMOBEADS™
AB 4 × 2 × 8 W	5.0	1.5	9.5	4.8	16.0	AMOBEADS™
AB 2.8 × 4.5 DY	4.2	※1	6	0.9	-	AMOBEADS™（Low-priced DY series）
AB 3 × 2 × 3 DY	4.2	※1	4.5	0.9	-	AMOBEADS™（Low-priced DY series）
AB 3 × 2 × 4.5 DY	4.2	※1	6	1.3	-	AMOBEADS™（Low-priced DY series）
AB 4 × 2 × 6 DY	5.3	※1	7.5	3.6	-	AMOBEADS™（Low-priced DY series）
AB 5 × 4 × 3 DY	6.15	※2	4.5	0.45	-	AMOBEADS™（Low-priced DY series）
SS 7 × 4 × 3 W	9.1	3.3	4.8	3.15	-	SPIKE KILLER™
SS 10 × 7 × 4.5 W	11.5	5.8	6.6	4.73	-	SPIKE KILLER™
SS 12 × 8 × 4.5 W	13.8	6.8	6.6	6.31	-	SPIKE KILLER™
SS 14 × 8 × 4.5 W	15.8	6.8	6.6	9.46	-	SPIKE KILLER™
SS 18 × 12 × 4.5 W	19.8	10.8	6.6	9.46	-	SPIKE KILLER™
SS 21 × 14 × 4.5 W	22.8	12.8	6.6	11.00	-	SPIKE KILLER™

If the circuit voltage is high and the reverse recovery time of the diode is long, please consider SPIKE KILLER™, which can be wound and has a high total magnetic flux.

Wired SPIKE KILLER™

*1： Typical Value, using a cross section of winding wire
*2：Total Flux of core × turn

Product specifications

AMOBEADS™,SPIKE KILLER™(PDF: 1,682KB)

＊Reference＊ AMOBEADS™ Simulation SPICE parts model

Features

Low coercivity, providing greater noise inhibiting effect
Outstanding saturation potential, minimizing adverse effects on other parts
Easy noise inhibiting - simply pass through the lead section of a semiconductor (AMOBEADS™)
AMOBEADS™ range includes type with lead and SMD type
Low-priced DY series available for customers who purchase 10kp or higher

Examples of uses

Switching power supplies (secondary output diodes)
Switching power supplies (other)
DC/DC converters
Motor control circuits
In-vehicle motor actuators

Environmental information download

RoHS Directive Prohibited Substances Non-Use Certificate Download

It is possible to download a certificate of non-use for 10 regulated substances under the RoHS Directive.

Certificate PDF

Target products are amorphous standard products.
Please contact the you purchased shop for other requests.

Products	Item name
AMOBEADS™	AB3X2X3W	AB3X2X4.5W	AB4X2X4.5W	AB4X2X6W	AB4X2X8W
	AB2.8X4.5DY	AB3X2X3DY	AB3X2X4.5DY	AB4X2X6DY	AB5X4X3DY
	LB4X2X8F	LB4X2X8U	LB2.8X4.5U
	AB3X2X3SM	AB4X2X6SM
SPIKE KILLER™	SS7X4X3W	SS10X7X4.5W	SS14X8X4.5W
Saturable Cores for Mag Amps	MT12S115	MT12S208	MT15S125	MT15S214	MT18S130
	MT18S222	MT21S134	MT21S222
	MT10X7X4.5W	MT12X8X4.5W	MT14X8X4.5W	MT15X10X4.5W	MT16X10X6W
	MT18X12X4.5W	MT21X14X4.5W
	MS7X4X3W	MS10X7X4.5W	MS12X8X4.5W	MS12X8X4.5W-HF	MS14X8X4.5W
	MS15X10X4.5W	MS16X10X6W	MS18X12X4.5W	MS21X14X4.5W	MS26X16X4.5W
FS Series Cores with High Magnetic Permeability	FS12X8X4.5W	FS18X12X4.5W	FS21X14X4.5W	FS26X16X10W	FS32X20X10W