J Material


J material is a medium perm general-purpose material. Well suited both for EMI/RFI filtering and broadband transformers. 

Initial Perm (10 kHz)5,000 ± 20%
Saturation Flux Density (4,300 G at 15 Oe, 25°C)430 mT, 11.9 A•T/cm
Curie Temperature145°C
Maximum Usable Frequency (50% roll-off) ≤0.7 MHz 
Relative Loss Factor (tan δ/µiac) X10-6, 25°C ≤15 (100 KHz) 
Remanence (1,000 G, 25°C)  100 mT 
Resistivity  0.5 Ω-m
Density 4.8 g/cm

PERMEABILITY vs. TEMPERATURE

JMatPermVsTemp.jpg

PERMEABILITY vs. FREQUENCY

JMatPermVsFreq.jpg

PERMEABILITY vs. DC BIAS

JMatPermVsDCBias.jpg

B-H LOOP