Equivalent & Substitute Parts for 74271722S

Part Overview

The Würth Elektronik 74271722S is a Star-Fix snap ferrite core with hinged design and key-required mechanism, featuring a 0.492" inner diameter and 1.382" length. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain supply chain continuity and support ongoing applications requiring ferrite core functionality with identical mechanical and electrical characteristics.

Substiute Parts

74271722S

Würth ElektronikIn Stock: 81474271722S Datasheet

Current PartRFQ

74271221S

Würth ElektronikIn Stock: 335074271221S Datasheet

MFR RecommendedRFQ

74271222S

Würth ElektronikIn Stock: 458974271222S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74271722S is determined by the following critical parameters:

• Design Configuration: Hinged (snap-on) mechanism with key-required feature
• Material Composition: 4W620 ferrite material
• Inner Diameter: 0.492" (12.50mm) core ID
• Mounting Method: Free hanging installation
• Regulatory Compliance: ROHS3 and REACH status alignment

The substitute parts identified maintain the core mechanical interface (hinged snap-on design with key requirement) and material specification (4W620). The 74271222S provides direct substitution with matching inner diameter (0.492"), while the 74271221S offers substitution with a reduced inner diameter (0.413") for applications where core size flexibility exists within the design constraints.

Parameter Comparison

Engineering Selection Recommendations

74271222S is the primary substitute for 74271722S applications. This part maintains identical inner diameter (0.492"), matching mechanical interface requirements for hinged snap-on installation with key mechanism. Both components utilize 4W620 material and comply with ROHS3 and REACH requirements. The 74271222S is currently active in production with established inventory availability.

74271221S serves as an alternative substitute where design flexibility permits reduced inner diameter (0.413" versus 0.492"). This part is suitable only for applications where the smaller core ID does not compromise functional performance or mechanical fit within the cable or conductor routing path. The 74271221S is also active in production with robust inventory levels.

Both substitute parts are manufactured by Würth Elektronik and maintain full regulatory compliance equivalent to the obsolete 74271722S.

Frequently Asked Questions (FAQ)

Q: Can 74271222S directly replace 74271722S in existing designs? A: Yes. The 74271222S maintains the same inner diameter (0.492"), design configuration (hinged snap-on with key requirement), material (4W620), and mounting method (free hanging). No mechanical redesign is required.

Q: What is the difference between 74271222S and 74271221S? A: The primary difference is inner diameter: 74271222S has 0.492" ID (matching the original 74271722S), while 74271221S has 0.413" ID. Both share identical design, material, and mounting characteristics. Selection depends on whether the smaller core diameter is compatible with your application's conductor size and routing requirements.

Q: Are the substitute parts compliant with the same regulatory standards? A: Yes. Both 74271221S and 74271222S are ROHS3 compliant and REACH unaffected, matching the compliance profile of the obsolete 74271722S.

Q: What packaging is available for substitute parts? A: Both substitute parts are supplied in tray packaging, differing from the original part's packaging specification.

Q: Why is the 74271722S obsolete? A: The 74271722S has been discontinued by Würth Elektronik. The active Star-Tec series alternatives (74271221S and 74271222S) provide equivalent functionality with improved supply chain availability.