Equivalent & Substitute Parts for 2643665902

Part Overview

The 2643665902 is a solid free-hanging ferrite core manufactured by Fair-Rite Products Corp. This component functions as an electromagnetic interference (EMI) suppression element with an impedance rating of 44 Ohm at 100 MHz. The core features a round solid design with an inner diameter of 0.375" (9.53 mm) and outer diameter of 0.687" (17.45 mm), with a length of 0.250" (6.35 mm). The part maintains Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent mechanical dimensions and functional performance parameters align within acceptable tolerances for the application category.

Substiute Parts

2643665902

Fair-Rite Products Corp.In Stock: 17402643665902 Datasheet

Current PartRFQ

28B0686-000

Laird-Signal Integrity ProductsIn Stock: 506528B0686-000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for ferrite cores in this category is determined by the following parameters:

Critical Mechanical Parameters:

• Inner diameter tolerance (0.375" ± acceptable variance)
• Outer diameter tolerance (0.687" ± acceptable variance)
• Length dimension (0.250")
• Mounting type (Free Hanging)
• Core geometry (Round Solid design)

Electrical Performance Parameters:

• Impedance value at specified frequency
• Material composition grade
• Frequency rating (100 MHz reference)

The substitute part 28B0686-000 shares identical mechanical dimensions within manufacturing tolerances and maintains the same mounting configuration. Both parts are manufactured to ROHS3 compliance and REACH unaffected status. The primary difference lies in impedance specification (91 Ohm versus 44 Ohm) and material grade (28 versus 43), which reflects different ferrite material compositions for distinct application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both parts maintain Active product status and satisfy ROHS3 and REACH compliance requirements. The mechanical envelope dimensions are equivalent within standard manufacturing tolerances, enabling physical interchangeability in free-hanging mounting applications.

Selection between these parts depends on the specific impedance requirement of the application circuit. The 2643665902 with 44 Ohm impedance is suitable for applications requiring lower impedance suppression, while the 28B0686-000 with 91 Ohm impedance addresses higher impedance suppression requirements. The material grade difference (43 versus 28) reflects the ferrite composition necessary to achieve the respective impedance specifications at 100 MHz.

Packaging format differs between the two parts: 2643665902 is supplied in Bulk packaging, while 28B0686-000 is supplied in Tray packaging. This distinction affects handling and inventory management but does not impact functional performance.

Frequently Asked Questions (FAQ)

Q: Can 28B0686-000 be used as a direct replacement for 2643665902?

A: Physical interchangeability is confirmed based on identical mechanical dimensions and mounting type. However, electrical performance differs due to impedance specification variance (91 Ohm versus 44 Ohm). Direct substitution is only appropriate if the application circuit tolerates the higher impedance value.

Q: What determines whether these parts are substitutable?

A: Substitutability is established through matching mechanical parameters (inner diameter, outer diameter, length, and mounting type) and compliance certifications (ROHS3, REACH). Impedance and material grade differences indicate these parts serve distinct electrical requirements rather than identical applications.

Q: How do the material grades affect performance?

A: Material grade 43 and material grade 28 are distinct ferrite compositions formulated to achieve their respective impedance characteristics at 100 MHz. The material grade selection is integral to the impedance specification and cannot be altered without affecting electrical performance.

Q: Does packaging format affect compatibility?

A: Packaging format (Bulk versus Tray) affects logistics, storage, and handling procedures but does not impact electrical or mechanical compatibility. Component performance remains identical regardless of packaging configuration.

Q: Are both parts suitable for high-reliability applications?

A: Both parts maintain Active product status and satisfy ROHS3 and REACH compliance standards. Compliance certifications apply equally to both components, supporting their use in regulated applications.