Multi-Function EMI Filters

Designed to attenuate unwanted Electromagnetic interference such as noise or spurious emissions at specific frequencies.

• These SMD (SMT) filters can be used in both single ended (one source signal) and differential (+/- signal) applications.
• Effective attenuation from 100KHz to 17GHz with various bandwidths.
• Available in EIA sizes from 0402 to 1812 depending on voltage rating.
• Voltages from 6.3VDC to 500VDC+.

Overview

Our multi-functional EMI Filters are designed to attenuate unwanted EM interference (commonly referred to as “noise” or “spurious emissions”) at specific frequencies, allowing other frequencies and/or DC signals to pass unaltered. This patented technology can suppress both common mode and differential noise interference with attenuations of up to 70dB.

Features:

• One device for EMI suppression (Filtering) or decoupling (Power Bypass)
• Offers both differential and common mode attenuation
• Effective from 1MHz to 17GHz
• Ultra Low ESL (equivalent series inductance)
• No Current Limit
• No DC Voltage Drop
• Unparalleled Decoupling Performance
• Superior Temperature & Vibration Characteristics
• Recommended within multiple IC Reference Designs

Benefits:

• Replaces up to 7 components with 1 EMI Filter
• Improves EMI filtering results in both conducted & radiated emissions
• Reduces compliance testing time and cost
• Up to 30% Via Reduction
• Up to 40% PCB Layout Saved
• Reduces assembly time and cost
• Simplifies design process
• Suitable for virtually all electronic applications

Applications:

• Amplifier Filtering & Decoupling
• High Speed Data Filtering
• EMC I/O Filtering
• FPGA / ASIC / µ-P Decoupling
• Automotive LED Driver
• DC-DC Converter Designs
• Wireless Charging
• GSM / Antennas
• DC Drives & Motors
• Medical Electronics
• Military/Aerospace Electronics
• IT & Networking
• Electric Vehicles
• Consumer Electronics
• Industrial

Expert Design Support:

At Johanson, we understand the complexity and difficulty associated in dealing with unwanted EMI issues in your circuit. With this in mind, we have a dedicated team of EMC experts in-house who are ready to support you. Our experienced engineers are here to help solve EMI issues and can support you with:

• Identifying the right component(s) to solve your unwanted EMI spikes.
• How to design-in and connect Johanson EMI Filters to your product’s schematic to achieve the most effective results.
• Reviewing and optimize your PCB layout, and where required, advise on any necessary changes that can be made to improve EM compliance.

Our goal is to provide you with a solution that will reduce your unwanted EMI noise that enables you to pass the mandatory EMC regulations, so please feel free to contact a member of our team.

Product Range (By Case Size)