Ferrite Sleeves

Ferrite sleeves, also known as ferrite beads, are non-conductive components used in electrical circuits to suppress or filter high frequency electromagnetic interference noise. They prevent electromagnetic interference to and from a device. 


How do ferrite sleeves work?

If a device produces radio frequency energy, the conductive cable is used as an antenna to transmit the energy through the device. The ferrite sleeve or bead reduces the output of EMI from the device itself and prevents the cable from acting as an antenna for other sources of EMI, like household appliances. 


Uses for ferrite sleeves


Ferrite sleeves are commonly found on data cables and medical equipment. They may be built in to the equipment or be separate items that can be clamped on to a cable. You may see larger ones on external cables, like on computer monitor cables, while smaller ones can be used internally in electrical circuits, on printed circiut boards (PCBs) for example. Ferrite sleeves are often needed for regulatory compliance. 


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Description Price Series Type Application Material Impedance at 25 MHz Key Openable Impedance at 100 MHz Outer Dimensions Aperture Diameter Impedance at 500 MHz Number of Apertures Outer Depth Outer Height
RS Stock No. 222-4343
Mfr. Part No.MSFC5-T
BrandRichco
MYR36.67
Each
units
MSFC Cable Core EMI Suppression A5 113Ω No Yes 223Ω 16.6 x 18mm 6mm - 1 - 18mm
RS Stock No. 257-4389
Mfr. Part No.RT130-070-070-K5B
BrandRichco
MYR7.148
Each (In a Pack of 5)
units
RT Toroid Core Multi-Turn Suppression Core Ferrite 25Ω No No 50Ω 13 Dia. x 7mm 7mm - 1 - 7mm
RS Stock No. 222-4400
Mfr. Part No.MTFC 201010T
BrandRichco
MYR32.48
Each
units
MTFC Toroid Core Computer Peripherals Ferrite 138Ω No Yes 225Ω 23.3 Dia. x 14.7mm 9.8mm - 1 - 14.7mm
RS Stock No. 222-4337
Mfr. Part No.MSFC4-T
BrandRichco
MYR46.06
Each
units
MSFC Cable Core EMI Suppression A5 95Ω No Yes 195Ω 13.2 x 14.3mm 5mm - 1 - 14.3mm
RS Stock No. 222-4359
Mfr. Part No.MSFC6-T
BrandRichco
MYR39.67
Each
units
MSFC Cable Core EMI Suppression A5 166Ω No Yes 252Ω 19 x 20.8mm 7mm - 1 - 20.8mm
RS Stock No. 222-4371
Mfr. Part No.MSFC 10-T
BrandRichco
MYR86.46
Each
units
MSFC Cable Core EMI Suppression A5 70Ω No Yes 127Ω 28 x 29.8mm 10.5mm - 1 - 29.8mm
RS Stock No. 257-4480
Mfr. Part No.RRH120-070-150-K5B
BrandRichco
MYR6.336
Each (In a Pack of 5)
units
RRH Bead CATV, MATV, Wire Assembly K5B 40Ω No No 80Ω 12 (Dia) x 15 Wmm 7mm - 1 - 15mm
RS Stock No. 222-4393
Mfr. Part No.MTFC 16816-T
BrandRichco
MYR33.64
Each
units
MTFC Toroid Core Computer Peripherals Ferrite 163Ω No Yes 275Ω 19.2 Dia. x 20.6mm 7.6mm - 1 - 20.6mm
RS Stock No. 257-4266
Mfr. Part No.MSFC 13K
BrandRichco
MYR40.32
Each
units
MSFC Cable Core EMI Suppression A5 51Ω No Yes 82Ω 28 x 29.6mm 13.5mm - 1 - 29.6mm
RS Stock No. 222-4365
Mfr. Part No.MSFC8-T
BrandRichco
MYR39.52
Each
units
MSFC Cable Core EMI Suppression A5 49Ω No Yes 97Ω 19 x 20.8mm 8.5mm - 1 - 20.8mm
RS Stock No. 222-4416
Mfr. Part No.MTFC 231114T
BrandRichco
MYR43.30
Each
units
MTFC Toroid Core Computer Peripherals Ferrite 156Ω No Yes 250Ω 26.6 Dia. x 18.6mm 10.9mm - 1 - 18.6mm
RS Stock No. 261-9117
Mfr. Part No.RICB 26 13 28
BrandRichco
MYR37.28
Each
units
RICB Shrink VE/CD Ferrite 145Ω No - 265Ω 26 Dia. x 28.5mm - - - - 28.5mm