Compact SMT common mode chokes for low-voltage DC-DC converters

TDK Corporation offers three new B8272* series of compact EPCOS SMT common-mode chokes, especially for low-voltage applications. They sustain voltages of up to 48VAC (50/60Hz) and 80VDC and continuous currents between 1.8A and 19A at an ambient temperature of 40C. The new series covers a range of inductance values between 0.59mH and 5.6mH.

Especially noteworthy are the compact dimensions of the new EMC components. Depending on the type, the surface area needed is only between 12.7mm x 12.7mm and 30.99mm x 25.4mm, with heights of 5.46mm to 12.7mm.

The design and materials of the RoHS-compatible EMC components comply with UL 94 V-0 and provide a relatively high leakage inductance of up to 1.2% of the nominal inductance, which reliably suppresses common-mode interference.

Areas of application for the new common-mode chokes incorporate DC-DC converters or low-voltage applications.