T37-2 Iron Powder Toroidal Core

The T37-2 is a small toroidal core made from Mix 2 carbonyl iron powder, developed for RF and audio applications. It is a suitable choice for building inductors, filters, RF transformers, and other compatible electronic projects where compact size and good high-frequency performance are important.

This model has an initial permeability µi of 10, an AL value of 40 µH at 100 turns, and a stated frequency range of 0.25 to 20 MHz. Its dimensions are 9.53 mm outer diameter, 5.21 mm inner diameter, and 3.25 mm height, with an approximate weight of 1 g.

Mix 2 material is considered an industry standard for RF and audio applications, offering high Q up to 40 MHz. It is also suitable for moderate band transformers from 200 to 400 MHz. The stated color code for this core is red/clear.

Features:

• Model: T37-2
• Material: Mix 2
• Carbonyl iron powder material
• Color: red / clear
• Frequency range: 0.25 - 20 MHz
• High Q up to 40 MHz
• Initial permeability: µi 10
• AL value (100 turns): 40 µH
• Outer diameter: 9.53 mm
• Inner diameter: 5.21 mm
• Height: 3.25 mm
• Approximate weight: 1.00 g
• Suitable for RF and audio applications
• Suitable for moderate band transformers from 200 to 400 MHz