What is the inside & outside diameter ?

OD = 2.40 in / 61.0 mm +/- 1.30 mm , ID = 1.40 in / 35.55 mm +/- 0.85 mm , this is also conveniently located in the product description in the listing.

Can these be cut into two identical half toroids? I want create two identical electromagnets.

Perhaps the snap-on beads would be a better application. The toroids have a specific shape to keep the magnetic flux within the loop. So while I can’t answer if breaking them will work in your case, but it sounds like using a hammer when you need a wrench. Could it work? Maybe, but bludgeoning seems a bit wasteful. YMMV Maybe try Mix 31 beads.

Need toroid for 1mhz thru 30 mhz

FairRite and the listing description give the following specifications: Frequency Range: 1 - 300MHz , EMI Suppression 1 - 500 MHz

Toroid Core Ft240 31 フェライト

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Elevate your signal game with precision EMI defense!

PRECISION DIMENSIONS - Optimized 2.40 in outer diameter and 1.40 in inner diameter for seamless integration.
TRUSTED BRAND QUALITY - Fair-Rite’s renowned ferrite core guarantees durability and consistent performance.
BROAD SPECTRUM SHIELDING - Engineered for 1-300 MHz frequency range to tackle diverse EMI challenges.
DIY READY BULK PACKAGING - Perfect for professionals stocking up on high-quality components without retail markup.
SUPERIOR NOISE REDUCTION - Suppresses electromagnetic interference up to 500 MHz, ensuring crystal-clear signal integrity.

The Toroid Core FT240-31 by Fair-Rite is a high-performance ferrite core designed for EMI suppression across 1 to 500 MHz frequencies. With precise dimensions (2.40 in OD, 1.40 in ID) and robust material quality, it’s ideal for professional-grade noise reduction in RF and electronic projects. Bulk packaged for serious DIYers and engineers, it’s a trusted component to enhance signal clarity and reduce interference.

Specifications

ASIN	B01959LAFA
Amazon 売れ筋ランキング	DIY・工具・ガーデン - 293,857位 ( DIY・工具・ガーデンの売れ筋ランキングを見る ) 補助錠・錠前 - 2,551位
Amazon.co.jp での取り扱い開始日	2018/9/28
Measurement System	Metric
おすすめ度	4.7 5つ星のうち4.7 (445) var
メーカー	Fair-Rite
メーカーにより製造中止になりました	いいえ
商品の重量	109 g
商品寸法 (長さx幅x高さ)	8.3 x 8.1 x 1.9 cm
材質	フェライト
製品サイズ	8.31 x 8.1 x 1.91 cm; 108.86 g
部品番号	FT240-31
電池付属	いいえ
電池使用	いいえ

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¥9498

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Toroid Core FT240-31 フェライト

Description

Specifications

Common Questions