Electromagnetic parameters of Ferroxcube ferrite materials and and recommendations for choosing.

# For power transformers

**Power ferrite materials for freqency band f<400kHz**

- 3C81 (µi = 2700) high permeability, minimum core losses at Т= 60 °C
- 3C90 (µi = 2300) base power material
- 3C91 (µi = 3000) minimum core losses at Т= 60 °C, frequency f<300 kHz
- 3C92 (µi = 1500) High saturation induction, freqency band f<200 kHz
- 3C93 (µi = 1800) minimum core losses at Т= 140 °C, frequency f<500 kHz
- 3C94 (µi = 2300) frequency f<300 kHz
- 3C95 (µi = 3000) sloping characteristic curve "core losses - temperature" in the range of 25-100 °C, that allows to use this material in the equipment in a wide temperature range (in motor-vehicle construction, mobile devices)
- 3C96 (µi = 2000) frequency f<400 kHz
- 3C97 (µi = 3000) new power ferrite material, low core losses in a wide range of temperatures in contradistinction to 3C95 saves stability at high temperatures (from 60 up to 140 °C)
**3C98**(µi = 2500) new power Ferroxcube material is improved verison of 3C96 with lower core losses ( 250 kW/m³), also characterized by higher values of initial magnetic permeability and saturation induction

**Materials with high saturation induction **

Suitable for output chokes production

- 3C20 (µi = 2300) used when gapped toroids manufacturing, f<300 kHz
- 3C30 (µi = 2100) for frequency band f<200 kHz
- 3C34 (µi = 2100) for frequency band f<300kHz
**3G1**(µi = 850) the highest saturation induction among Ferroxcube ferrites>500 mТ- 3P1 (µi = 80) powder material with saturation induction >1,5 T

**High-Frequency band**

- 3F3 (µi = 2000) for frequencies 200<f<500 kHz
- 3F35 (µi = 1400) for frequencies 500<f<1000 kHz
- 3F4 (µi = 900) or frequencies1<f<2 MHz
- 3F45 (µi = 900) or frequencies 1<f<2 MHz,extremely low core losses at frequency 1 MHz
- 3F5 (µi = 650) for frequencies 2<f<4 MHz, extremely low core losses at frequency 3 MHz
- 4F1 (µi = 80) for frequencies 4<f<10 MHz

# For EMI-Suppression

For EMC filters, Power line chokes

** frequencies f< 200 kHz**

- 3B1: (µi = 900) MnZn ferrite
- 3S1: (µi = 4000) low-frequency material, high Impedance
- 3C11: (µi = 4300) medium permeability, suitable for power line chokes manufacturing
- 3E25: (µi = 6000) suitable for power line chokes manufacturing
- 3E26: (µi = 7000) suitable for power line chokes manufacturing
- 3E27: (µi = 6000) low core losses and sufficiently high Curie point
_{} - 3E5: (µi = 10000) high initial permeability
- 3E6: (µi = 12000) the highest initial permeability
- 3E10: (µi = 10000) material with high magnetic permeability and low tolerance value of Al up to ±20% in comparisson with materials 3E5, 3E6
- 3E12: (µi = 12000) material with high magnetic permeability, applied in broadband transformers and also used as EMC filters

**For High-frequency band**

- 4B1: (µi = 250) NiZn ferrite
- 4S2: (µi = 800) high impedance, suitable for a wide range of frequencies up to1 GHz
- 3S3: (µi = 350) high impedance, suitable for a wide range of frequencies up to1 GHz
- 3S4: (µi = 1700) high impedance
- 3S5: (µi = 3800) suitabe for working with high bias
- 4S2F: (µi = 700) inexpensive material (without Ni content), for high frequencies. There is a whole range of EMC filters for round and ribbon cables on the base of this material

NiZn ferrites

- 4A11: (µi = 850) NiZn ferrite with medium permeability
- 4A15: (µi = 1200) NiZn ferrite with high permeability
- 4A20: (µi = 2000) NiZn ferrite
- 4C65: (µi = 125) NiZn ferrite with low permeability
- 4S3: (µi = 250) high impedance, suitable for a wide range of frequencies up to 1GHz

- 4B2: (µi = 250) NiZn ferrite with high Curie point T
_{c}. Suitable for antenna rods and transponders - 4D2: (µi = 60)the highest Curie point T
_{c} - 4E1: (µi = 15) the highest Curie point T
_{c}