RM Cores are designed to utilize the surface area on the PCB more economically. The
sizes are based on the standard PCB grid distance. For example RM7 fits on a board space
of 7 x 7 modules of 2.5mm grid. The core center hole is necessary for filter inductor
applications. Core performance can be improved by using a solid center post for
wideband and power transformer applications. Wide slots increase the area for leads
but also reduce the shielding.
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| RM CORES | Core Type | | | Material Grades | | | Bobbins | |
| Transformer Cores | Inductor Cores | |||||
| RM 4 | F5A, F9, P11 | P11, P12 | ss. 4 pin, 5 pin, 6 pin ds. 4 pin, 5 pin, 6 pin |
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| RM 5 | F47, F44, F9, F10, P11, F57, F39 | P11, P12 | ss. 4 pin, 6 pin ds. 4 pin, 6 pin |
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| RM 6R RM 6S |
F5A, F9, F10, F47, F44, F9, F10, P11, F57, F39 |
P11 P11, P12 |
ss. 4 pin, 5 pin, 6 pin ds. 4 pin, 5 pin, 6 pin |
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| RM 7 | F47, F44, F9, F10, P11, F57, F39 | P11, P12 | ss. 5 pin | |||
| RM 8 | F47, F44, F9, F10, F57, F39 | P11, P12 | ss. 4 pin, 8 pin, 12 pin ds. 4 pin, 8 pin, 12 pin |
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| RM 10 | F47, F44, F9, F10, F57, F39 | - | ss. 8 pin, 12 pin ds. 8 pin, 12 pin |
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| RM 12 | F47, F44, F9, F10, F57, F39 | - | ss. 11 pin, 12 pin | |||
| RM 14 | F47, F44, F9, F10, F57, F39 | - | ss. 12 pin | |||
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