Toroidal Core

Toroids have the best possible shape from the magnetic point of view. The flux path is completely closed so the capabilities of the ferrite are fully exploited. Especially for high permeability ferrites the effect of even a minor airgap in the magnetic circuit can spoil up to 50% of the effective permeability. A further advantage is the very low leakage fi eld which makes it a suitable shape for power and pulse transformers. Ring cores are mainly used for pulse- and wide band transformers and interference suppression coils but also in special power supplies.

Due to the high saturation fl ux density of iron powder (950...1600 mT) these ring cores are very suitable for output chokes carrying high DC currents. Another application is found in lamp dimmers as ballast choke. The cores are made of electrolytic iron powder, mixed with a small amount of resin for insulation. They are coated with polyamide 11 (thickness 0.1 - 0.3 mm). The isolation voltage between core and winding is up to 1500 V.

different types of silicon steel / electrical steel / CRGO / CRNGO Magnetic tape wound cores for transformer sensor etc. Material Property:  CRGO&CRNGO Material Brand:  Baosteel, NSC, JFE, TKS, POSCO, NLMK Material Thickness:  0.05mm, 0.08mm, 0.1mm, 0.23mm, 0.27mm, 0.3mm, and 0.35mm. Certificate:  RoHS 2011/65/EU Technics:  tape winding Products Frequency:  50-5K HZ Products Shapes:  C E O & Customized Mechanical Properties:  low power loss per cycle / low core loss / high permeability Application:  transformer, sensor and magnetic components of electronic equipment; Automobile Sensor, Solar Inverter, Smart Home CRGO Tape wound Cores wind one long continuous silicon steel tape tightly into a spiral advantage: no air gap, high magnetic properties, easy to roll weakness: difficult to wind large cores and realize mechanized Welding ï¼?Spot welding is firm and smooth, and does not weld through two layers Winding ï¼?winding is tight, the start and end of the sheet can not be turned up Planeness ï¼?surface unevenness is less than 0.1mm Fineness ï¼?No crystalline fine particles (no crystalline fine particles on the cut surface) Cut face ï¼?No obvious crack on the cutting face (no light transmission and peeling between layers) Surface ï¼?Visually without burrs, rust, or deformation (to control deformation within tolerances) Products ï¼?Do not contain Pb\Cd\Hg\Cr\PBBs\PBDEs

Co-based amorphous core in plastic container 1. high permeability 2.Thickness (1820 mkm) 3. Annealing in transverse field, permeability more than 100000, very low loss, flat hysteresis loop 4. Common-mode filter chokes, current transformers, including for precise electronic electricity meters, protective cutout, High Frequency power transformers in SMPS, audio transformers, etc. 5.D from 4-32mm Ribbon wound magnetic core is placed into hard protective container of glass-polyamide and mechanically fixed with silicone sealant. Co-based amorphous ribbon wound magnetic core is placed into hard protective container of glass-polyamide and mechanically fixed with silicone sealant.Size veries:outer D =4-32mm.The container has rounded edges and is designed for direct winding of a thick wire. The container provides reliable mechanical protection and preservation of amorphous material's properties. All materials comply with UL94V-1 / 0. 1. High permeability 2.Thickness (1820 mkm) 3. Annealing in transverse field, permeability more than 100000, very low loss, flat hysteresis loop 4. KEY FEATURES OF THE AMORPHOUS MATERIAL: Induction amplitude, Bm (25C) 0.59 T Induction amplitude, Bm (90C) 0.50 T Curie temperature, Tc 220C Operating temperature range -60C ... 100C Magnetostriction less than 0.110^-6 Typical permeability (10 kHz) - 120 000 Typical permeability (100 kHz) - 35 000

Supplier: Transformer laminations, toroidal cores
Buyer: Crgo electrical steel sheets - coils

Supplier: C.R.G.O. electrical lamination and toroidal cores and distribution transformer
Buyer: C.R.G.O steel coils, slit coils, sheet and offcuts

Supplier: Servo voltage stabilizer, isolation transformer, CRGO toroidal core & lamination strip

PM cores are a variation on classic P cores, suitable for large high power transformers and energy storage chokes. They have larger wire slots facilitating easy assembly, but still the good shielding of a closed core shape. PM cores can be found in transmission and radar equipment and in various high power industrial installations.

RM cores were designed for use in high Q, high stability fi lter inductors. Their shape allows economic utilization of surface area on the PCB. The range is standardized in IEC 431 and is available worldwide from many suppliers. The sizes are based on the standard PCB grid distance. RM 5, for instance, fi ts on a board space of 5 x 5 modules of 2.5 mm grid. Coil formers and clips were optimized for automated winding and mounting. The slots provide suffi cient space for leads of windings. Magnetic shielding is not as good as with P-cores, but still effective.