Rectangular
Modulus (RM) Cores
 RM
(Rectangular modulus) cores arose due to the demand for coil formers with
integrated pins that allow for efficient winding and high PCB packing densities.
Clamps engaging in recesses in the core base
hold the cores in place, meaning glue is not normally required in this process.
All the cores adhere to specifications laid
down in IEC 431 and in DIN 41980. The coil formers adhere to DIN 41981.
RM cores are designed for two main
applications:
- Highly stable, extremely low loss filter
inductors and other resonance determining inductors (F58, P11).
- Low distortion broadband transmission at
low signal modulation (F39, F10, F9).
RM cores can also be supplied without the
centre hole. These have a higher AL value and cross sectional area and are used
for power transformer applications (F47, F44, F45, F5A).
RM4,RM5, RM6, RM7, RM8, RM10, RM12, RM14
Data sheets are available for:
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