Material - Nickel Zinc

Properties of our Nickel zinc soft ferrite grades.

Parameter	Symbol	Standard Conditions of Test	Unit	FF1	F53	F19	F19A	F52	F13	FA1	F24	F14	F16	F01^p	F25^p	F21^p	F28^p	F31^p	F29^p
Initial Permeability (nominal)	µ_i	B<0.1mT 10kHz25⁰C	-	1500 ± 20%	1050 ±20%	1000 ±20%	900 ± 20%	850 ±20%	650 ±20%	370 ±20%	350 ±20%	220 ±20%	125 ±20%	120 ±20%	50 ±20%	40 ±20%	30 ±20%	15 ±20%	12 ±20%
Saturation Flux Density (typical)	B_sat	H=796A/m25⁰C =10 Oe Static	^mT	230	210	260	355	210	320	310	350	350	340	280	-	240	-	220	-
Remanent Flux Density (typical)	B_r	H→0 (from near Saturation) 10kHz25⁰C	^mT	175	130	165	190	130	141	217	200	270	165	190	-	155	-	135	-
Coercivity (typical)	H_c	H→0 (from near Saturation) 10kHz25⁰C	^A/m	30	50	53	20	50	59	60	65	172	200	30	-	1200	-	1600	-
Loss Factor (maximum)	tanδ/µ_i	B<0.1mT 25⁰C 100kHz 400kHz 500 kHz 1MHz 2 MHz 3 MHz 5 MHz 10MHz 15MHz 20MHz 40MHz 100MHz 200MHz	10^-6	140 - - - - - - - - - - - -	26 - - - - - - - - - - - -	- - 130 350 - - - - - - - - -	- - 100 200 - - - - - - - - -	26 - - - - - - - - - - - -	- - 65 130 - - - - - - - - -	- 65 - - - - - - - - - - -	- - - - - - - - - - - - -	- - 40 42 50 - - - - - - - -	- - - 60 - - 65 100 - - - - -	- - - - 45 - - - - - - -	- - - 50 50 55 65 75 100 125 300 - -	- - - - 50 50 55 65 75 100 125 300 -	- - - - - - 80 - - - - 250 -	- - - - - - - - - - 225 - -	- - - - - - 100 - - - - 200 1000
Temperature Factor	α_F	B<0.1mT +25⁰C to 55⁰C 10kHz	10^-6 / ⁰ C	-	-	3 to 6.5	3 to 6.5	-	1.5	-	-	12 to 30	20 to 50	-	10 to 15	-	30	-	50
Curie Temperature (minimum)	θ_C	B<0.1mT10kHz	⁰ C	80	100	120	160	100	180	180	240	270	270	300	450	300	500	400	500
Resistivity (typical)	ρ	1V/cm 25⁰C	Ohm- cm	10⁸	10⁶	10⁴	10⁵	10⁶	3 x 10⁴	-	10⁵	10⁵	10⁵	10⁷	10⁵	10⁶	10⁵	10⁴	10⁵

(p) Perminvar ferrites undergo irreversible changes to their electrical characteristics if subjected to strong magnetic fields or mechanical shock. The changes include an increase in permeability and loss factor. The increase in loss factor is especially pronounced at high frequency

Data is derived from measurements on toroidal cores. These values cannot be directly transferred to products of another shape and size .The product –related data can be taken from the relevant product specifications.