SS28B2042K

Series:	--
Part Status:	Active
Type:	Round
Design:	Hinged (Snap On)
Impedance @ Frequency:	238 Ohm @ 100MHz
Material:	28
Inner Dimension:	0.425" Dia (10.80mm)
Outer Dimension:	0.929" W x 0.965" H (23.60mm x 24.50mm)
Ratings:	--
Mounting Type:	Free Hanging
Length:	1.480" (37.60mm)

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Ferrite Cores - Cables and Wiring Ferrite cores are manufactured to attach to cables or wiring to reduce or eliminate electromagnetic interference (EMI). The SS28B2042K is a toroidal ferrite core designed to fit a range of cables and wiring sizes, and offers excellent EMI suppression.AppearanceThe SS28B2042K is a toroidal, or ring-shaped, core with an outer diameter of 28mm and an inner diameter of 20mm. It has 4 sets of 2 holes for mounting, with each pair of holes spaced out at 90-degree intervals. There are 8 grooves on the outside of the core which aid in mounting the core onto cables, and the core has two winding grooves, one on the top side and one on the bottom side, which are used to wrap the cable.Application fieldThe SS28B2042K is designed for use in high-speed digital applications, telecommunications, and EMI/RFI suppression. It is especially useful for suppressing interference from both low-frequency devices, such as computers and power sources, and high-frequency signals, such as radio transmitters.Additionally, the SS28B2042K is ideal for use in automotive, military, and aerospace applications, where superior EMI suppression is needed. In these applications, the core can be used to prevent EMI from entering and from leaving the vehicle, thus ensuring a safe and secure environment for passengers and/or equipment.Working principleThe SS28B2042K works by wrapping the cable or wiring in the ferrite core, which creates an increase in the inductance of the cable. This higher inductance increases the impedance and reduces the level of EMI which is able to propagate along the cable.The core is constructed of ferrite, which is an iron oxide material based on a combination of iron, cobalt, and nickel with trace elements of manganese and zinc. These materials have the highest permeability of any known materials, and this enables the core to achieve its high inductance, which in turn helps to suppress EMI.ConclusionThe SS28B2042K is a high-performance ferrite core designed for EMI suppression in a variety of applications. By wrapping the cable or wiring in this toroidal core, the user can achieve superior EMI reduction for both low and high-frequency signals. The core is constructed from high permeability materials which help to increase its inductance and thereby provide excellent EMI suppression.

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