New series of SMT common mode chokes introduced by TDK
2022-06-23
TDK introduces a new b8272* series EPCOS SMT common mode choke. The new series of components are available in three models, all of which are very compact. They are specially developed for low-voltage applications. The design operating voltage is 48 V AC (50/60 Hz) and 80 V DC, the operating temperature is 40 ° C, the continuous operating current range is 1.8 A to 19 A, and the inductance value range is 0.59 MH to 5.6 MH.


One of the highlights of this new series of EMC components is its compact size, which ranges from 12.7 x 12.7 mm to 30.99 x 25.4 mm in board size, and the overall height is only 5.46 mm to 12.7 mm, depending on the product type.

The design of the new components meets the requirements of RoHS directive. The fire rating of the materials used reaches UL 94 V-0, and has relatively high leakage inductance (up to 1.2% of the rated inductance), which can reliably suppress common mode interference.

The new components are widely used in various applications, including dc/dc converters or low-voltage applications.


Primary applicator

● dc/dc converter
● low voltage applications

Main features and advantages
● maximum operating voltages up to 48 V AC (50/60 Hz) and 80 V DC respectively
● optional SMD version
● current range: 1.8 A to 19 A
● inductance value range: 0.59 MH to 5.6 MH
● compact size: the minimum product footprint is 12.7 x 12.7 mm; Minimum overall height 5.46 mm