Passives

Chip inductors offer high inductance & low DCR values

5th August 2015
Barney Scott
0

Developed for use in mobile devices and cellular infrastructure equipment, Coilcraft’s recently introduced 0402DF Series chip inductors offer higher inductance values and significantly lower DC resistance than other 0402-sized inductors, making them suitable devices for RF choke and filtering applications.

The 0402DF Series is offered in 25 inductance values ranging from 20 to 3300nH, with a 5% tolerance for all values. It offers the lowest DC resistance currently available in a 0402 package. For example, the DCR of the 220nH value is 0.240Ω - 55% lower than the same value in Coilcraft’s 0402AF Series - optimising it for use as a harmonic filter element for NFC applications.

 0402DF Series inductors can also be used as a filter element in bandstop and low pass filters, a one-pole filter or RF choke in cellular bands, and for ground-to-ground isolation. They feature a ferrite construction for high current handling and RoHS 6/6-compliant matte tin over nickel over silver-palladium-glass frit terminations.

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