Schaffner introduces RT-Series N - EMC
RT-Series N delivers up to 15 dB higher attenuation performance than its ferrite-based predecessor
Schaffner has announced the launch of a new common mode choke for industrial applications that delivers better performance than previous versions while maintaining the same mechanical dimensions.
Based on nanocrystalline core technology, the addition to Schaffner's popular RT series will include the RT8121, RT8131, RT8521, and RT8531. The new RT series N achieves up to 15 dB higher attenuation performance than its ferrite-based predecessor over relevant frequency bands of the electromagnetic compatibility (EMC) frequency spectrum. By filtering electromagnetic common mode noise on the mains side of an electrical device, the RT series N eliminates the problem of electromagnetic interference (EMI) directly on a PCB. The choke has the same diameter of 65 mm as Schaffner's existing series but offers designers more power while working within tight space constraints and reduces the need to use an external EMC filter.
With nominal currents from 25 A to 63 A at 60°C and operating voltages up to 600 VAC and 450 VDC, the new choke is particularly suitable for use at frequencies from 10 MHz to 30 MHz. Ensuring cost-effective PCB designs up to 100 A with forced cooling, the choke is available in horizontal and vertical PCB mounting options to meet specific design requirements. Other features include a wide range of inductance values (3 mH to 13 mH), low magnetic leakage flux, and superior winding insulation.
With a choice of 2-wire and 3-wire configurations for DC, 2-line AC, and 3-phase applications, the new common mode choke will be of particular interest to machine and electronics manufacturers with power demands for their applications from 10 kW to 80 kW. Ideal for use in power supplies used in EV charging stations and robotics, the high-performance choke features an approved UL insulation system that allows for easy customization.
Other typical applications include photovoltaic inverters, converters, uninterruptible power supplies (UPSs), switching power supplies, LED lighting, communication equipment, and medical/laboratory equipment. Although not all applications will require the extra power of the new RT series N, designers can use the choke as a safety option to improve EMC levels if a measurement fails.