Steward's ultra high current common mode chokes provide small form factor, high performance and economical power filtering for common mode noise in applications up to 55 amps.

They provide EMI suppression for groups of conductors like power traces and high speed data lines.

Laird Technologies (formerly Steward)

Ultra High Current Common Mode Chokes

Steward's multi-line common mode power/data array filters provide the most economical EMI filtering available for common-mode noise.

They provide EMI suppression for groups of conductors like power traces or tracks and high speed input/output circuitry including network and storage subsystems.

Laird Technologies (formerly Steward)

Multi-Line Surface Mount Common Mode Chokes

Steward's high current common mode choke arrays provide small form factor, high performance and economical EMI filters for common mode noise in applications up to 20 amps continuous operating current.

Features:

• High continuous current operation capability
• Small footprint
• Low clearance height
• Low cost
• Parts available in broadband and low frequency materials Lighter, smaller and less susceptible to vibration than wire wound chokes
• Parts are available in Surface Mount and Thru-Hole designs
• Lead Free

Applications:

• Conducted and radiated EMI problems in high and low-frequency power supplies
• DC Motor Filtration
• Excellent in telecommunications, automotive and appliance applications

Laird Technologies (formerly Steward)

High Current Common Mode Chokes

For Filtering Modular Data / Power Ports (RJ11 through RJ45 Sizes)-The product is available with 4 lines up to 8 lines and is effective for power line filtering, USB, FireWire, 10T, 100T and RJ11/45.

Steward's advanced family of common mode choke arrays provide EMI filtering for both power and data lines all in one part. It is designed to maximise signal integrity.

Laird Technologies (formerly Steward)

Surface Mount Common Mode Chokes

Up to 10 Amps / 1812 & 3312 Size - Steward's monolithic surface mount common mode chokes are designed for power and data line EMI filtering where high current, small size or high frequency performance is required.

This family of compact ferrite parts provide EMI suppression on conductors such as PC board traces (tracks) and high speed input/output circuitry (including network and storage subsystems).

Laird Technologies (formerly Steward)

Miniature Surface Mount Common Mode Chokes

Steward's ultra high current common mode chokes provide small form factor, high performance and economical power filtering for common mode noise in applications up to 55 amps.

Filter common mode noise currents and minimise emissions from high speed data lines.

Applications

• Automotive controller area network systems
• Industrial controls controller area network systems
• Medical monitoring systems
• Filtering common mode EMI on high speed differential lines such as network and telecom applications

Laird Technologies (formerly Steward)

CAN-Bus Common Mode Chokes

SMD - EMI Components

API Delevan

SMD - EMI Components

In Ferroxcube’s SMD Common Mode Chokes, 2 or 4 conductors within a single soft-ferrite block are connected along their lengths by an air gap.

Common mode signals - interference signals passing in the same direction along the input and output channels of a device (e.g. and IC) - reinforce the magnetic flux around both conductors, and are therefore attenuated. In contrast, the wanted signal passing along the input and output channels cancel the flux around the conductors and therefore passes unattenuated.

Ferroxcube

SMD Common Mode Chokes