Santa Rosa, CA. Schurter has expanded its range of current compensated chokes with high current types for PCB mounting. Chokes in the DKIH Series are now available with a nanocrystalline ring core, offering 8x higher inductance performance than ferrite-core versions in the same compact dimension. The new product is designed for single- and three-phase applications with rated currents from 10 to 50 A. Due to their open design, the chokes are light weight and compact, designed to suppress EMI noise caused by power applications on the PCB.
Like all other aspects of electronic design, the power portion is oftentimes built today using discrete components on printed circuit boards. With the trending integration of components, to achieve smaller and smaller form factors, thermal problems and high currents on the PCB can become a challenge.
Traditional block filters might well address these challenges, but their larger package size also presents challenges due to the mentioned space constraints; therefore an asymmetrical effective common mode choke and capacitors mounted on the PCB is a better solution.
The new DKIH-1 series is suitable for single phase AC or DC applications from 10 up to 50 A. Light weight and compact, the common mode chokes are easily placed on the PCB with through hole technology (THT). They are designed and approved according IEC 60938, UL 1283 and CSA 22.2 no. 8. The voltage rating is 300 VAC (IEC, UL) and 250 VAC (CSA) with an inductance range of 1.6 to 6.9 mH.
The new DKIH-3 series is suitable for three phase AC applications from 10 up to 50 amperes. The common mode chokes are also designed according IEC 60938 and are rated 600 VAC with an inductance range of 0.7 to 10.8 mH, making them suitable for many applications such as UPS systems, switching power supplies, charge stations for electric vehicles and frequency converters for energy storage.
The DKIH-1 and -3 have a wide temperature range of -40 to +100°C. They are available with a standard pin out or customer specific pin out. Variations in the winding are also available upon request.
Pricing starts around $14.00 each per 100 pieces. Packaging is 20 pieces per box, except for the 10 and 12 A versions of the single phase product which are 40 pieces per box.
