BF3121

Overview

The Delevan BF3121 is a hinged, snap-on ferrite core designed for free-hanging cable suppression. It features an API-1 material composition providing 95 Ohms impedance at 100 MHz. The component has a round design with an inner diameter of 15.00 mm (0.591 inches), an outer diameter of 31.50 mm (1.240 inches), and a length of 21.50 mm (0.840 inches). It operates within a temperature range of -20°C to +60°C.

Feature Summary

• Hinged split-core design allows installation around existing cables without disconnection
• API-1 ferrite material provides effective electromagnetic interference suppression
• Free-hanging mounting type suitable for round cable applications

Applications

• Electromagnetic interference suppression on round cables
• Signal integrity enhancement in electronic assemblies
• Cable noise reduction in industrial equipment

Procurement Notes

Verify the specific manufacturing date code and RoHS compliance status upon order confirmation. Confirm that the API-1 material specification matches the intended frequency response requirements. Ensure the inner diameter accommodates the target cable bundle diameter without excessive clearance or tight fit. Check for any specific handling instructions regarding the hinge mechanism integrity during installation.

Selection Notes

Select this component when a non-invasive solution for cable shielding is required. The 15 mm inner diameter limits suitability to cables or bundles fitting within this constraint. Consider the 95 Ohm impedance profile at 100 MHz against the noise spectrum of the application. The hinged design offers reusability but may have different mechanical durability compared to solid cores.

Part Context

The BF3121 belongs to the Delevan BF Series of split ferrite suppressors. These components are engineered for high-frequency noise attenuation in electronic systems. The series utilizes specific ferrite formulations optimized for distinct impedance characteristics across defined frequency bands.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with alternative hinged ferrite cores based on identical impedance curves and dimensional constraints.