UU-type common mode choke is an electromagnetic component designed to suppress common-mode noise in electronic circuits. It consists of a ferrite core with two symmetrical windings, effectively filtering unwanted high-frequency interference while allowing differential signals to pass unimpeded. Widely used in power supplies, communication equipment, and data lines, it enhances electromagnetic compatibility (EMC) and ensures stable system performance. Its compact UU-core design offers high inductance and excellent noise suppression, making it essential for reducing electromagnetic interference (EMI) in modern electronic applications.

■ Basic Info.

■ Applications

AC power supplies, DC-DC converters
Common mode choke (multilayer) capable of high-density mounting
■ Dual common mode choke coil balun coil/filter
■ (wire-wound) with low leakage
■ 4.7uH to 100mH EMI filter for UU line filter common-mode choke and EMI coil filter
■ used in pulse transformer
■ Dual wire wound common mode choke coil USB series for signal and noise suppression applications
■ Balun coils/dual wire choke and high-current common mode choke coils
■ EMI suppression common mode chokes
■ Chokes designed using common-mode choke coil structure to enable better noise suppression
■ PFC correction choke
■ Current-compensated ring core double chokes
■ Double isolated chokes
■ Current compensated chokes
■ Common mode line chokes for high frequency data lines design
■ Combination line filter chokes
■ Power factor controller transformer
■ Common mode EMI/RFI filter
■ AC/DC, DC/DC EMI line noise suppression
■ Communication system EMI line noise suppression
■ Automotive system EMI line noise suppression
■ LCD/PDPT television EMI line noise suppression
■ Computer peripheral equipment EMI line noise suppression

■ UU9.8/UF9.8

UF series Common mode choke coils have compact size and light weight, high reduction over a wide range of frequencies.

■ UU10.5/UF10.5

■ UU15.7/UF15.7

■ UU16/UF16