Megatron AG | EMI shielding

Electromagnetic Interference (EMI) greatly influences the operation of electronic devices; either by the fact that the fault is generated or received them from the environment through the device itself. Ferrites exhibit excellent EMI shielding protection against common-mode and differential Conducted interference since their damping properties are proportional to the frequency. This experienced the low-frequency signals no attenuation, while high-frequency interference can be effectively suppressed.
The materials are suitable, for example, for bar-cores, toroidal cores, cable shields, all kinds of inductors, EMI and SMD beads.

emi-abschirmung

High Perm

Materialien	µi bei 25°C	Bsat (mT) bei 25°C (1200 A/m)	Tc (°C)	p (Ωm)	Ferrit-Typ	Bemerkung
3C11	4300	≈ 390	≥ 125	≈ 1	MnZn	Frequency < 30 MHz
3E65	5200	≈ 480	≥ 165	≈ 0.5	MnZn	Frequency < 20 MHz
3E25	6000	≈ 390	≥ 125	≈ 0.5	MnZn	Frequency < 20 MHz
3E27	6000	≈ 430	≥ 150	≈ 0.5	MnZn	Frequency < 20 MHz
3E26	7000	≈ 430	≥ 155	≈ 0.5	MnZn	Frequency < 20 MHz
3E5	10000	≈ 380	≥ 125	≈ 0.5	MnZn	Frequency < 15 MHz
3E10	10000	≈ 460	≥ 130	≈ 0.5	MnZn	Frequency < 20 MHz
3E6	12000	≈ 390	≥ 130	≈ 0.1	MnZn	Frequency < 15 MHz
3E12	12000	≈ 470	≥ 130	≈ 0.5	MnZn	Frequency < 15 MHz

Low Perm

Materialien	µi bei 25°C	Bsat (mT) bei 25°C (1200 A/m)	Tc (°C)	p (Ωm)	Ferrit-Typ	Bemerkung
3B1	900	≈ 380	≥ 150	≈ 0.2	MnZn
3S1	4000	≈ 400	≥ 125	≈ 1	MnZn	Frequency < 30 MHz
3S3	350	≈ 320	≥ 225	≈ 10⁴	MnZn	Frequency < 200 MHz
3S4	1700	≈ 320	≥ 110	≈ 10³	MnZn	Frequency < 100 MHz
3S5	3800	≈ 545	≥ 255	≈ 10	MnZn	Frequency < 30 MHz Bias and High Temperature
4B1	250	≈ 360	≥ 250	≈ 10⁵	NiZn	Frequency < 300 MHz
4S2	850	≈ 340	≥ 125	≈ 10⁵	NiZn	Frequency < 100 MHz
4S2F	700	≈ 290	≥ 120	≈ 10⁴	NiZn	Frequency < 100 MHz
4S3	250	≈ 360	≥ 250	≈ 10⁵	NiZn	Frequency < 300 MHz
4S60	2000	≈ 260	≥ 100	≈ 10⁵	NiZn	Frequency < 50 MHz