Tape wound cores and bobbin cores
28 February 2001
Passive Components
Magnetics offers tape wound cores made from high permeability magnetic strip alloys (0,0127 to 0,356 mm thick) of nickel-iron (80% or 50% Ni), silicon-iron, cobalt-iron and amorphous metals. Respective trade names are Permalloy 80, Orthonol, Magnesil and Supermendur. These cores have one or more desirable characteristics: high permeability, low core losses, high squareness B-H loops, high flux densities and square or round B-H loops, says the manufacturer.
Protective cases include phenolic, nylon, aluminum, and epoxy coated (sealed) aluminium boxes. Silicon-iron cores may be supplied unboxed or epoxy encapsulated. Tape cores are produced as small as 9,5 mm in ID, to more than 508 mm in OD, in over 1000 sizes.
Bobbin cores are miniature tape cores made from ultra-thin (3,18 mm to 25,4 mm thick) nickel-iron strip (80% Ni or 50% Ni) wound on nonmagnetic stainless steel bobbins. Covered with protective caps and epoxy coated, bobbin cores are made as small as 1,27 mm in ID and widths of 0,813 mm.
Further reading:
Common-mode choke for 35 A commercial applications
Altron Arrow
Passive Components
Vishay has introduced a new IHCM common-mode choke for high-current commercial applications up to 35 A. Available with a low-profile SMT construction, the IHCM-2321AA-10 is more robust than bulky toroid-based
...
Read more...
High-voltage semiconductor-based capacitors
RFiber Solutions
Passive Components
MACOM Technology Solutions’ KV CAPS are high density, high working voltage silicon capacitors which employ a novel topology that essentially folds the parallel plates of the capacitors into three-dimensional
...
Read more...
Very compact X2 capacitors
Electrocomp
Passive Components
A recent introduction by TDK is a new series of very compact EPCOS X2 capacitors for noise suppression. They are rated for
275 V a.c. and cover a capacitance spectrum from
33 nF to 1 µF. Depending on
...
Read more...
Soft ferrite cores serving many applications
Sivan Electronic Supplies
Passive Components
Ferrites are polycrystalline oxides manufactured by ceramic technology and belong to a class of materials that exhibit the technically useful property of ferromagnetism. In a ferromagnetic material, magnetism
...
Read more...
Extensive Murata offering from Mouser
TRX Electronics
Passive Components Power Electronics / Power Management
Now with over 19 000 Murata parts in stock, Mouser offers an ever-broadening selection of the manufacturer's newest solutions, including products from Murata Electronics, Murata Power Solutions and Murata
...
Read more...
High-voltage chip divider in moulded package
Avnet Abacus
Passive Components
Vishay has introduced the industry's first high-voltage chip divider to be offered in a ribbed, moulded package with compliant surface-mount leads. Designed to reduce component counts and improve TC tracking
...
Read more...
High-voltage resistors can replace standard resistor chains
Altron Arrow
Passive Components
A new series of AEC-Q200 qualified thick-film chip resistors, with operating voltages up to 3 kV and in the 2010 and 2512 case sizes, has been introduced by Vishay. With their high operating voltages,
...
Read more...
Automotive quartz crystals and inductors
TRX Electronics
Passive Components
Abracon automotive inductors and quartz crystals are AEC-Q200 qualified and available in a variety of package sizes, with wide-ranging operating temperatures from -55°C to +155°C. Designed for high-reliability
...
Read more...
Shielded power inductors
Electrocomp
Passive Components
Bourns’ new Model SRP6530A shielded power inductor series is designed to meet the high current density and high temperature requirements of a variety of applications. These AEC-Q200 compliant inductors
...
Read more...
Broadband SMT conical inductors
RF Design
Passive Components
Coilcraft’s BCR Series comprises conical inductors available in nine inductance values ranging from 0,22 to 8,0 µH. They are designed specifically for broadband and high-frequency applications across
...
Read more...
printer friendly version