New chips offer highest inductance and lowest DCR of any 0402-sized RF choke

05-08-2015 | Coilcraft Europe | Passives

Developed for use in mobile devices and cellular infrastructure equipment,
Coilcraft's new 0402DF Series chip inductors offer higher inductance values
and significantly lower DC resistance than other 0402-sized inductors,
making them ideal for RF choke and filtering applications, says the company.

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 0.240ohms - 55% lower than the same value in Coilcraft's
0402AF Series - making it fully optimized for use as a harmonic filter
element for NFC applications.

The 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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