Common mode filters
Line-up
| High speed Differential transmission (for Mbps) |
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High speed Differential transmission (for Gbps) |
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High speed Differential transmission (for Gbps) (USB3.0, HDMI2.0) |
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| High attenuation (for Mbps) |
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High attenuation (for Gbps) |
High attenuation (for MIPI C-PHY) |
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| With ESD Suppressor | 2 mode Filters (common and normal mode) |
Signal Harmonics Relaxation (for Mbps) |
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EXC18CS NRFND |
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EXC24CN |
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What is the Common Mode Noise Filter (CMNF)?
Noise suppression device used for signal integrity enhancement and common mode noise suppression in differential signal system.
The video provides you with a detailed description of the features of the Common mode Noise Filters and explains how to choose the filter fitting to your needs.
Especially in digital data communication, which has become faster in recent years, measures for eliminating common mode noise are essential - the Common mode Noise Filters are used in such applications.
Features
- Wide range lineup
(Small size or Array type) for common mode noise suppression - Good signal integrity for high bit rate data transmission.
Wide pass-band for differential signal. - Simple multi-layer structure
Good durability and mounting reliability
Technology details
Simple Ceramic multi-layer structure
1. Coil
- Best performance for heat-resistance by pure Ag coil
2. Glass Ceramics／Non-magnetic Ferrite
3. Magnetic Ferrite
- Strong device strength by co-fired Multi-layer structure
4. Outer Electrode
- Good performance to the mounting reliability
- Strong terminal strength by fired termination
Top level component technology for downsizing by multilayer method
1. Coil
TOP level fine pattern in electronic device industry
- Easy for downsizing
- High common mode impedance
- Low DC Resistance
2. Glass Ceramics
Originally developed Low ε glass
- Reduced stray capacitance between coils
- Keep good signal integrity
- Matched characteristic impedance on differential mode signal
3. Magnetic Ferrite
- Attenuate high frequency noise by increasing an attenuation for high frequency noise
- Enhance magnetic coupling by optimize of magnetic-multilayer structure
Panasonic offers a wide range lineup (small size type and Array type ) for common mode noise suppression
