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Our miniaturized SMT common mode filter is a high-performance electromagnetic interference suppression component engineered exclusively for high-speed data circuits, designed to meet the rigorous noise reduction demands of industrial and commercial electronic systems. As a core passive component for data transmission stability, this SMT common mode filter for data circuits features an ultra-compact surface-mount design, perfect for high-density PCB layout in space-constrained electronic devices. It realizes high-efficiency common mode noise suppression while minimizing impact on differential signal transmission, making it a staple choice for professional electronic design and manufacturing enterprises, industrial equipment suppliers and other enterprise-level users pursuing high signal integrity.
The core design of this miniaturized SMT common mode filter adopts a high-coupling coefficient winding structure with a magnetically shielded core, which achieves a coupling coefficient of over 0.95 and effectively suppresses high-frequency common mode noise up to 1GHz. The SMT common mode filter uses lead-free high-temperature resistant SMT packaging, complying with RoHS and REACH environmental standards, and can withstand reflow soldering temperatures up to 260°C without performance degradation. In terms of electrical performance, it has ultra-low DC resistance (max 0.9Ω), ensuring minimal power loss during data transmission, and a high rated current range of 150mA~400mA to adapt to different data circuit load requirements. Most importantly, it has almost no impact on high-speed differential signals (insertion loss <0.5dB at 100MHz), ensuring unobstructed transmission of USB 3.0, LVDS and other high-speed data signals.
Order Code | Common Mode Impedance (Ω@100MHz) | Tol. Impedance | RDC Max (Ω) | Rated Current (mA) | Operating Temp (°C) | Insulation Resistance (MΩ Min) | Package Size (mm) |
CMF-SMT-0805-900 | 900 | ±25% | 0.90 | 150 | -40 ~ +125 | 10 | 2.0×1.2×1.2 |
CMF-SMT-0805-370 | 370 | ±25% | 0.45 | 280 | -40 ~ +125 | 10 | 2.0×1.2×1.2 |
CMF-SMT-1206-2200 | 2200 | ±25% | 1.20 | 200 | -40 ~ +125 | 10 | 3.2×1.6×1.8 |
CMF-SMT-1206-1000 | 1000 | ±25% | 1.00 | 230 | -40 ~ +125 | 10 | 3.2×1.6×1.8 |
| Main Category | Subcategory | Details |
| MOQ | Prototyping & Small-batch | 10 piece minimum order |
| Sample Service | Free proofing & custom service, 5 free samples (shipping at buyer’s cost) | |
| Bulk Order | 5,000 pieces and above with bulk pricing | |
| Lead Time | All Standard Components | Shipped within 5–7 working days |
| Custom Inductance / Pin Design (Sample) | Sample order confirmed within 5–7 working days | |
| Custom Inductance / Pin Design (Mass Order) | Shipped within 15–30 working days | |
| Payment Terms | Main Payment Term | T/T in advance, L/C at sight |
| Procurement Standard | Complies with global enterprise procurement standard for passive components | |
| Quality Deposit | No quality security deposit required | |
| Accepted Terms | FOB Shanghai / Nanjing / Hong Kong, T/T Advance | |
Quality Assurance | Manufacturing Defects | Free replacement for issues caused by manufacturing defects |
| Inspection Report | Batch inspection reports available as certification upon customer request | |
Packaging Specifications | Updated Packaging (2026) | Blister tray packaging; Sealed Tape & Reel for SMD products |
| Optional Packaging | Vacuum sealed packaging for customers with strict moisture-proof requirements |
This miniaturized SMT common mode filter for data circuits is widely applied in enterprise-level electronic systems that require high-speed data transmission and strict EMI control. Typical application scenarios include: high-speed data interfaces of industrial control equipment (PLC, DCS), LVDS signal lines of industrial display screens and LCD monitors, USB 2.0/3.0 data lines of commercial server peripherals, data transmission modules of medical electronic equipment, and high-speed communication ports of automotive electronic infotainment systems. It is also an ideal component for the research and development and production of network communication equipment such as switches and routers, effectively helping enterprise users meet EMC certification standards such as CE and FCC.
We focus on providing professional passive component solutions for enterprise-level users, and our SMT common mode filter product line has passed ISO9001 and IATF16949 quality system certification. For bulk procurement customers, we provide customized impedance matching and packaging design services to meet the personalized needs of different data circuit designs. Our technical support team has over 10 years of experience in EMI suppression solutions, providing free circuit simulation and application guidance for enterprise users. In terms of delivery, we have a global warehouse layout, supporting small-batch sample supply and large-batch on-time delivery, with a product warranty of 3 years.
Yes, our automotive-grade models have passed AEC-Q200 certification, with enhanced high-temperature and vibration resistance, and are fully applicable to automotive electronic data circuits such as on-board infotainment and ADAS.
For standard models, the bulk delivery cycle is 715 working days; for customized models, it is 2030 working days, and we can provide free samples for testing before bulk procurement.
