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Products and Applications

Our product range embraces toroidal tape-wound cores (RBK) made from crystalline, amorphous and nano-crystalline metallic, soft magnetic alloys. Amorphous (VAC tradename VITROVAC) and nano-crystalline (VAC tradename VITROPERM) alloys are produced in one single step, i.e. using rapid solidification technology thin ribbons are jet cast directly from the melt. These combine the high permeabilities of the crystalline NiFe alloys with the good frequency behaviour of ceramic ferrites. Main fields of application are signal and power transformers covering several kHz to several MHz as well as common-mode RFI suppression chokes.

The Table below gives an overview of the most important applications for our toroidal cores, the qualities used and their merits. More detailed information is available to you in our product brochures and technical data sheets.

Our specialists offer comprehensive advice on our products and, in many cases, detailed information on applications. To this end we employ simulation and dimensioning programs to improve on our product recommendations.

Application	Toroidal Core of	Information
Signal transformers and chokes in digital communication networks (e.g. ISDN)	VITROVAC 6025 F VITROVAC 6200 F VITROVAC variants	Amorphous metal tape cores with exceptional magnetic properties. Excellent alternative materials for size-optimized transformers with very good pulse and impedance properties.
Common-mode RFI supression chokes Standard Series VF - Series	VITROPERM 500 F	Nano-crystalline cores for size-optimized chokes with high and homogeneous insertion loss.
Magnetic Amplifier Chokes in Switched-Mode Power Supplies	VITROVAC 6025 Z	First amorphous alloy on the market for switched-mode power supplies. Continuously improved since introduction. Low cost mass production. Calculation tool for Magnetic Amplifier Chokes: VAC MagAmp Calculator 99 (for Excel 97, Freeware)
Power transformers	VITROPERM 500 F VIROVAC 6030 F	Nano-crystalline and amorphous ring and oval tape cores for switched-mode transformers in most compact design esp. in kW range.
Mains Independent Crystalline NiFe qualities. Decades as Residual Current Devices	ULTRAPERM 10, 200, 250 ULTRAPERM F80, PERMAX M, PERMENORM 5000 H2, PERMENORM LGF, PERMAX LGF	Crystalline NiFe qualities. Decades as Europe's No. 1 in lifesaving protective devices. Optimum size and cost solution for standard trip switches in large batches.
&bnsp;	VITROPERM 800 F, VITROPERM 500 F	Nano-crystalline material of next generation. Enables further reduction in size with high trip performance from low no. of primary windings.
Current Transformers for Electronic Energy Meters	VITROPERM 800 F, VITROPERM 500 F VACOPERM 100 VITROVAC 6150 F, 6030 F	Core materials with lowest relative amplitude and phase error. Ideal solution for cost optimized solutions in lower current range Volumeoptimized solutions with DC tolerance according to IEC 1036.
In addition to a.m. we produce toroidal cores (RBK) for studio transformers, storage chokes, measurement transformers, drive transformers, signal transformers, saturable protective chokes and pulse compression.