Efficient Noise Suppression – VITROPERM 550 HF
Nanocrystalline Cores offer Volume, Weight and cost optimized HF-designs
VITROPERM® 550 HF is the latest addition to the family of nanocrystalline alloys that are characterized by outstanding properties. The newly developed alloy enables next-generation components with optimized size and weight, especially for HF-noise reduction. Cores made from this alloy enable high RFI-noise suppression, particularly, in the HF-range in innovative filter designs with higher performance for future applications.
Benefits:
- Significantly reduced volume/weight due to improved HF-properties
- Superior HF-attenuation compared to standard VP 500 F
- Low core losses due to lower eddy currents
- Excellent thermal stability over a wide temperature range
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Benefits of using VP 550 HF in your application
Efficient Noise Suppression Impedance Measurement Comparisons
Please note, that the diagram is displayed in a logarithmic scale.
Comparison of the impedance IZI (f) of VITROPERM 550 HF vs. VITROPERM 500 F and typical ferrites. In each case, the core size is 25 x 20 x 10 mm, wound with 14 turns, 1.4 mm.
VITROPERM 550 HF provides a significantly improved performance with an identical core size. Alternatively, an identic performance can be achieved with much smaller cores, resulting in a remarkable cost reduction.
Comparison of the impedance IZI (f) of VITROPERM 550 HF vs. VITROPERM 500 F and typical ferrites. In each case, the core size is 25 x 20 x 10 mm, wound with 14 turns, 1.4 mm.
VITROPERM 550 HF provides a significantly improved performance with an identical core size. Alternatively, an identic performance can be achieved with much smaller cores, resulting in a remarkable cost reduction.
Comparison of the insertion loss aE of VITROPERM 550 HF vs. VITROPERM 500 F and typical ferrites. In each case, the core size is 25 x 20 x 10 mm, wound with 14 turns, 1.4 mm.
VITROPERM 550 HF provides a significantly improved performance with an identical core size. Alternatively, an identic performance can be achieved with much smaller cores, resulting in a remarkable cost reduction.
Please note, that the diagram is displayed in a logarithmic scale.
Comparison of the impedance IZI (f) of VITROPERM 550 HF vs. VITROPERM 500 F and typical ferrites. In each case, the core size is 25 x 20 x 10 mm, wound with 14 turns, 1.4 mm.
VITROPERM 550 HF provides a significantly improved performance with an identical core size. Alternatively, an identic performance can be achieved with much smaller cores, resulting in a remarkable cost reduction.
Comparison of the impedance IZI (f) of VITROPERM 550 HF vs. VITROPERM 500 F and typical ferrites. In each case, the core size is 25 x 20 x 10 mm, wound with 14 turns, 1.4 mm.
VITROPERM 550 HF provides a significantly improved performance with an identical core size. Alternatively, an identic performance can be achieved with much smaller cores, resulting in a remarkable cost reduction.
Comparison of the insertion loss aE of VITROPERM 550 HF vs. VITROPERM 500 F and typical ferrites. In each case, the core size is 25 x 20 x 10 mm, wound with 14 turns, 1.4 mm.
VITROPERM 550 HF provides a significantly improved performance with an identical core size. Alternatively, an identic performance can be achieved with much smaller cores, resulting in a remarkable cost reduction.
A Superior EMC Solution
VITROPERM alloys are optimized to combine highest permeability and lowest coercive field strength. The combination of very thin tapes and the relatively high electrical resistance (1.1 - 1.2 µΩm) ensures minimal eddy current losses and an outstanding frequency vs. permeability behaviour. Combined with a saturation flux density of 1.2 T and a wide operational temperature range, these features make VITROPERM a universal solution for most common EMC problems and vastly superior in many aspects to commonly used ferrites and amorphous iron materials.
By utilising low-cost raw materials (Fe-based) and modern, large-scale production, VITROPERM is a very competitive solution for a wide range of applications.
Best-In-Class Nanocrystalline Material Material Data Comparison
The table shows a comparison of typical material data of alloys used e.g. for common mode chokes.
| Material Data (typ. values) | VITROPERM 550 HF | VITROPERM 500 F | Typical ferrites (MnZn) | |
|---|---|---|---|---|
| Saturation flux density | BS | 1.2 T (room temperature) | 1.2 T (room temperature) | < 0.48 (room temperature) |
| Coercivity (static) | HC | < 3 A/m | < 3 A/m | 5 - 60 A/m |
| Saturation magnetostriction | λS | 10-8 .... 10-6 | 10-8….10-6 | 10-6 - 2 x 10-5 |
| Specific electrical resistivity | ρ | 115 μΩcm | 115 μΩcm | |
| Impedance @ 0,9 MHz | IZI | 4,300 Ω | 3,300 Ω | 2,300**/1,200*** Ω |
| Core losses @ 100 kHz (0.3 T) | ΡFE | 50 W/kg | 80 W/kg | 140 W/kg |
| Curie temperature | TC | > 600 °C | > 600 °C | 150 - 200 °C |
| Typical permeability | |μ| | ~20,000 - 100,000 (10 kHz) | 15,000 - 150,000 | 10 - 10,000 |
| Upper operational temperature for | ||||
| plastic case | Tmax | 130 °C* | 130 °C* | < 100 °C |
| core material | Tmax | 155 °C, 180 °C (limited time) | 155 °C, 180 °C (limited time) |
*) Plastic cases suitable for upper continuous application temperatures of 155 °C available on request
**) µ = 8,500
***) µ = 5,600
Available Standard Cores
The following table shows the actually available standard sizes. Customized product solutions for all industries are available upon request. We look forward to receiving your technical inquiries.
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