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 Temperature 145°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