Equivalent & Substitute Parts for Würth Elektronik 32405

Part Overview

The Würth Elektronik 32405 is an RF EMI flexible ferrite sheet designed for electromagnetic interference suppression in RF applications. This component features a single-sided non-conductive adhesive backing and is constructed from rubber-bonded ferrite powder material. The part is currently discontinued at DiGi Electronics, making substitute part identification essential for ongoing design support and procurement continuity.

Substiute Parts

32405

Würth ElektronikIn Stock: 109432405 Datasheet

Current PartRFQ

32405S

Würth ElektronikIn Stock: 76932405S Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Würth Elektronik 32405 is based on strict equivalence of the following critical parameters:

• Identical physical dimensions: 11.693" × 8.268" × 0.024" (297.00mm × 210.00mm × 0.60mm)
• Identical material composition: Rubber-bonded ferrite powder
• Identical adhesive configuration: Non-conductive, single-sided
• Identical operating temperature range: -20°C to 90°C
• Identical electromagnetic properties within the WE-FAS series
• Compliance with ROHS3 and REACH requirements

The substitute part 32405S maintains all electrical and mechanical specifications of the original part while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The 32405S is a direct functional equivalent to the 32405 and is suitable for all applications requiring the WE-FAS flexible ferrite sheet specifications. The substitute part maintains identical electrical performance, mechanical dimensions, and material properties while offering the advantage of active product status and current availability.

Selection of the 32405S is appropriate for new designs, redesigns, and ongoing production support where the original 32405 is no longer procurable. Both parts satisfy ROHS3 and REACH compliance requirements for regulated markets.

Frequently Asked Questions (FAQ)

Q: Can the 32405S be used as a direct replacement for the 32405?

A: Yes. The 32405S is dimensionally and functionally identical to the 32405. All electrical, mechanical, and material specifications are equivalent. The primary difference is product status and packaging format.

Q: What is the significance of the "S" designation in part number 32405S?

A: The "S" suffix indicates a variant within the WE-FAS series. In this case, it denotes the same ferrite sheet specification with active product status and bag packaging, as opposed to the discontinued 32405.

Q: Are there any compatibility concerns when switching from 32405 to 32405S?

A: No compatibility concerns exist. Both parts share identical dimensions (11.693" × 8.268" × 0.024"), material composition, adhesive properties, and operating temperature range (-20°C to 90°C).

Q: What is the difference in packaging between these parts?

A: The 32405 uses standard packaging, while the 32405S is supplied in bag packaging. This difference does not affect the component's electrical or mechanical performance.

Q: Are both parts compliant with environmental regulations?

A: Yes. Both the 32405 and 32405S are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Why is the 32405 discontinued?

A: The 32405 has been discontinued at DiGi Electronics. The 32405S remains in active production and is the recommended procurement option for current and future applications.