MH&W supports many of the older technologies through our relationships with Epcos division of TDK Corp. The below materials are used for Resonance filter (analog/ signal filters) These are characterized by high Q and very stable over temperature. typical core shapes are pot cores and RM cores, some with fine tune adjustors.
Filter coil (low tan d/µi, high Q, stable µi over T)
- N48: (µi = 2300 ) Stable impedance over temperature
- N45: (µi = 3800 ) high Bsat
- M33: (µi = 750 )
- K1: (µi = 80 )