Company Introduction

Ferroxcube Soft Ferrites (MnZn - NiZn)

Founder of Ferrite Cores1941

E Core

E I Core

ETD Core

ER Core

PQ Core

RM Core

U core

5.3 to 100

Most common

Very cheap

16 to 40

Cheap

28 to 59

Easy winding

Cheap

20 to 50

Best power/volume

Very popular

10 to 35 mm

(size 4 to 14)

Popular

10 to 126

Good for thick winding

Toroid 2.5 to 140

Best material properties

Specialized winding

Planar E 14 to 64

Winding on PCB

Planar ER 9.5 to 64

Winding on PCB

Planar EQ 13 to 38

Optimal winding layout

EFD core 10 to 30

Low pro"le component

EP Core 5 to 20

Good EMI shielding

Toroid core

Cable shield

splitted

SMD bead

Wide band

choke

SMD wide

band choke

2.5 to 140

Best material properties

Specialized winding

Common mode choke

Clamp on connected cable

Flat and round cord

Ready component

Di"erential or common

mode noise

Ready component

Di"erential or common

mode noise

Through hole, ready

Very popular

Di"erential noise

SMD

Ready component

Rods

Multilayer

Inductor

Drum cores

Cable shield

tube

High current EMI

Suppression

Di"erential noise

suppression

Di"erential low freq

suppression

Common mode

suppression

Mount before connect

3C92, 3C95, 3C96, 3C97

3F36, 3F4, 3F46

3C92 High saturation low loss material3C92 is the best material for output chokes in buck converters and

inverter reactors, where the main property is High Flux density,

Property Conditions 3C92 3C94 Unit

µi 25°C 10 kHz 0.25 mT1500

±20%

2300

±20%

µa 100°C 25 kHz 200 mT ≈ 5000 ≈ 5500

Bsat25°C

10 kHz 1.2 kA/m≈ 540 ≈ 470

mT100°C ≈ 460 ≈ 380

Pv 100°C100 100 ≈ 50 ≈ 50

kw/m3100 200 ≈ 350 ≈ 350

ρ 25°C DC ≈ 5 ≈ 5 m

Tc ≥ 280 ≥ 220 °C

Density ≈ 4800 ≈ 4800 kg/m3

Standard range: E16-E100, planar E14-E64, planar ER11- ER64

• Optimized for 300 – 1000 kHz

• Flat power loss

• Flat permeability

• High Bsat

CONDITIONS UNIT 3F36 3F35 3F3

µi 25ºC; 10kHz; 0.25mT 1600 ± 20%1400 ±

20%

2000 ±

20%

µa 100ºC; 25kHz; 200mT ≈ 2400 ≈ 2400 ≈ 4000

B 25ºC; 10kHz; 1200A/m mT ≈ 520 ≈ 500 ≈ 440

100ºC; 10kHz; 200A/m ≈ 420 ≈ 420 ≈ 370

Pv 100ºC; 400kHz; 50mT kW/m3 ≈ 50 ≈ 60 ≈ 140

100ºC; 500kHz; 50mT ≈ 90 ≈ 90 ≈ 220

100ºC; 500kHz; 100mT ≈ 700 ≈ 700 ≈ 1200

ρDC 25ºC Ωm ≈ 12 ≈ 10 ≈ 2

Tc ºC ≥ 230 ≥ 240 ≥ 200

density kg/m3 ≈ 4750 ≈ 4750 ≈ 4700

Table and chart refers to typical values for ring T25/15/10

3F36 - Flat MnZn material for power conversion

Standard range: E13-E55, EFD, EP, EQ, ETD, P, planar E, planar ER, PQ, RM

• Optimized for 1 - 3 MHz, small core size

• Outstanding power loss

• Flat µi

• High Bsat

CONDITIONS UNIT 3F46 3F46 3F45 3F4

MEASURED ON T14/9/5 T25/15/10

µi25ºC; 10kHz;

0.25mT

750 ±

20%

750 ±

20%

900 ±

20%

900 ±

20%

µa100ºC; 25kHz;

200mT≈ 1500 ≈ 1500 ≈ 1700 ≈ 1700

B25ºC; 10kHz;

1200A/mmT ≈ 520 ≈ 520 ≈ 410 ≈ 410

100ºC; 10kHz;

200A/m≈ 430 ≈ 430 ≈ 370 ≈ 350

Pv100ºC; 1MHz;

50mTkW/m3 ≈ 150 ≈ 300 ≈ 300 ≈ 600

100ºC; 3MHz;

10mT≈ 50 ≈ 120 ≈ 150 ≈ 220

ρDC 25ºC Ωm ≈ 5 ≈ 5 ≈ 10 ≈ 10

Tc ºC ≥ 280 ≥ 280 ≥ 300 ≥ 220

density kg/m3 ≈ 4750 ≈ 4750 ≈ 4800 ≈ 4700 Chart refers to typical values for ring T25/15/10

3F46 - Flat MnZn material for power conversion

Standard range: EFD, EP, EQ, P, planar E, planar ER, PQ, RM

• Optimized for 1 - 3 MHz, for medium and large core size

• Much less size sensitive than 3F46

3F4 - MnZn material for power conversion

0

100

200

300

400

500

600

0 20 40 60 80 100

Pv [

mW

/cm

3]

t [°C]

E64/15/20 Pv vs temp 3M, 10mT

E64-3F4 E64-3F5 E64-3F46

Standard range: planar E >32, planar ER >32, PQ>40, RM10-14, EQ>30

200

250

300

350

400

450

500

550

600

650

700

20 40 60 80 100 120 140 160 180

Pv

[k

W/m

3]

temperature [°C]

Materials comparision

100kHz 200mT

3C91

3C92

3C93

3C94

3C95

3C96

3C97

Power loss vs temperature 3C9.

3C95 and 3C97 - Flat losses materials

3C91, 3C92, 3C93, 3C94, 3C96, Not flat losses materials

Product performance comparison

0

50

100

150

200

250

300

350

400

450

500

20 40 60 80 100 120 140

Pv

[k

W/m

3]

temperature [°C]

ETD 59/31/22

tested with 25kHz 300mT

3C92

3C93

3C94

3C96

3C97

0

20

40

60

80

100

120

140

160

180

200

20 40 60 80 100 120 140

Pv

[k

W/m

3]

temperature [°C]

ETD 59/31/22

tested with 25kHz 200mT

3C92

3C93

3C94

3C96

3C97

Ferrite Mat. and Segment/Application for Power

Low Loss Wide

temperature

High Bs High

frequency

Key Feature Lowest loss at

100*C

Low loss at wide

temperature

Inductors for DC

handling requiring

materials with

highest Bs and low

loss

Low Loss at high

frequency,

miniaturization of

SMPS

Applications High end power

supplies

Power supplies

with variation in

power

Power inductors

and output chokes

Power supplies for

advanced, high

frequency, high

efficient application

Material 3C96 3C95, 3C97 3C92 3F36, 3F46

Ferrite Mat. and Segment/Application for EMI

High µi High Z High DC High

frequency

Key Feature Highest

permeability with

good frequency

stability

Highest

permeability with

very good

frequency stability

High permeability

with high Bsat for

EMI suppression

with high idc

Adjusted for high

frequency noise

dambing

Applications EMI filters,

common mode

chokes

EMI filters,

common mode

chokes

EMI filter with high

idc

High frequency

common mode

chokes

Material 3E10, 3E12 3C11, 3E27 3E27, 3E65 3S4, 4A11,

Application

Microinverters Power conversion materials

• Micro-inverters are installed in each panel to generate the

maximum power from each of them.

• AC can be generated in the micro-inverter, or in a high power

system for the complete installation

• Power handling is much less than in string inverters, in the

range of 300 watts. This implies:

• Higher switching frequencies

are possible

• Core size is smaller because of

the lower power, but also

because of the higher frequency

• Mid size standard shapes are

applicable, but also planar cores

Microinverters

Magnetic functions

DC/DC boost Galvanic

Isolation

DC/AC

inverter

Courtesy of ST Semiconductor

STEVAL-ISV003V1

Boost

inductors:

PQ-3C92

anic

tion

DC/AC

inverter

Isolation

transformer:

RM-3C98

Output choke:

Gapped

toroid 3C92

Hall sensor:

Gapped core

3E27

Common

mode choke:

TX-3E12

Leading edge customers:• Top ratings at high end customers:

• Military, aviation, medical, automotive

• Close partnership with preferred customers

• Supplies the most demanding markets

Our customers

ISO 9001

TS16949