R- (ring-) configured Cores

Example of designation in design documentation:
SDMR 40 R154*80*45
where:
SDMR40 - ferrite’s brand
R - product’s configuration (R-configured core)
154*80*45 - product’s standard size (A*B*C)

Dimensions and Effective Parameters of R-configured Cores

Standard Size A, mm B, mm C, mm C1(mm-1) Le(mm) Ae(mm2) Ve(mm3) Weifht, g
H124/60/40 124 60 40 0.225 289 1280 369766 1770
H132/100/27 132 100 27 0.843 364 432 157351 760
H140/65/20 140 65 20 0.429 321 750 241387 1160
H150/110/27 150 110 27 0.755 408 540 220428 1060
H154/80/45 154-2+3 80-1+2 45-0,5+0,5 0.225 367 1665 611687 2940