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The document is a data sheet for EPCOS RM12 ferrite cores, type B65815E*****087. It lists the magnetic parameters per set, such as LWA, I., Ae, Amin, Ve and weight, and gives the standard packing dimensions and ordering codes.
It also contains extensive cautions and processing notes, describing the mechanical brittleness of ferrite cores, the effect of stress on initial permeability, recommended handling during winding and soldering, and legal disclaimer information for product use.
| LWA | 0.39 mm |
|---|---|
| Ae | 146 mm? |
| Amin | 125 mm? |
| Ve | 8320 mm³ |
| Approx. weight | 45 g/set |
| Packing dimensions | 300 x 200 x 39 mm |
| Measurement parameter | 10 kHz, 0.25 mT, 100 turns, room temperature |
Ferrite cores are brittle and can crack under shock, fast‑changing or tensile loads, high static and cyclic loads, and fast cooling rates.
Higher mechanical stress in the core lowers the initial permeability, so the embedding medium should be as elastic as possible.
Material data sheets are available on the EPCOS website at www.epcos.com/material.