R Material


R material is a medium frequency multi-purpose power transformer, inductor and filter material. Widely available in shapes and toroids. Engineered for lowest losses at 95°C.

Initial Perm (10 kHz) 2,300 ± 25%
Saturation Flux Density (4,700 G at 15 Oe, 25°C) 470 mT, 11.9 A•T/cm
Curie Temperature 210°C
Maximum Usable Frequency (50% roll-off)  ≤1.8 MHz 
Remanence (1,600 G, 25°C)   160 mT 
Resistivity   5 Ω-m
Density  4.8 g/cm

PERMEABILITY vs. TEMPERATURE

R-Perm-vs-Temp.jpg

CORE LOSS vs. TEMPERATURE

R-Loss-vs-Temp.jpg

PERMEABILITY vs. FLUX DENSITY

R-Perm-vs-Flux.jpg

CORE LOSS vs. FLUX DENSITY AT 100°C

R-Loss-vs-Flux.jpg

PERMEABILITY vs. FREQUENCY

R-Perm-vs-Freq.jpg

FLUX DENSITY vs. TEMPERATURE

R-Flux-vs-Temp.jpg

B-H LOOP