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