T157-2 - Iron powder toroid core, 0.25 - 20 MHz, OD 39.9 mm

Micrometals T157-2: Iron Powder Toroid for RF and Audio Applications

The Micrometals T157-2 is a high-performance magnetic component made from carbonyl iron powder, designed to deliver excellent results in high-frequency circuits. This toroid is particularly valued for its magnetic stability, low permeability, and high Q factor, making it ideal for RF, audio, and EMI filtering applications.

Thanks to its compact geometry and Mix 2 formulation, the T157-2 enables efficient design of inductors and transformers, reducing losses and improving frequency response. It is a reliable choice for electronics engineers, radio amateurs, and designers of analog and digital circuits.

Applications of the T157-2 Toroid

The Micrometals T157-2 toroid is widely used in a variety of electronic applications where efficient energy handling and precise high-frequency response are required:

• Low-frequency RF filters
• Inductors for switching power supplies
• Transformers for 200–400 MHz transmissions
• High-fidelity audio circuits
• EMI/RFI suppression systems
• Amateur radio and DIY electronics projects

Advantages of the Micrometals T157-2

• High thermal and magnetic stability
• Excellent performance in RF environments
• Easy to wind and integrate into circuits
• Readily available and competitively priced
• Compliant with international standards for passive components

Micrometals MIX 2 - KEY FEATURES

• Industry standard for RF and audio applications
• Carbonyl Iron mix - exclusively from Micrometals
• High Q up to 40 MHz
• Used for moderate band transformers 200 to 400 MHz
• Permeability of 10μ
• The low permeability results in lower operating AC flux density than other materials with no additional gap‐loss