Equivalent & Substitute Parts for Würth Elektronik 7427140S

Part Overview

The Würth Elektronik 7427140S is a hinged snap-on cable tie ferrite core designed for electromagnetic interference suppression in cable management applications. This component features a 98 Ohm impedance at 100 MHz with an inner diameter of 0.402" (10.20mm) and is constructed from 4W620 ferrite material. The part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs.

Substiute Parts

7427140S

Würth ElektronikIn Stock: 11427427140S Datasheet

Current PartRFQ

7427026

Würth ElektronikIn Stock: 10697427026 Datasheet

MFR RecommendedRFQ

7427153

Würth ElektronikIn Stock: 103047427153 Datasheet

MFR RecommendedRFQ

7427153S

Würth ElektronikIn Stock: 12037427153S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for ferrite cores is determined by the following critical parameters: inner diameter (cable compatibility), impedance at operating frequency (EMI suppression effectiveness), ferrite material composition (frequency response characteristics), and mechanical design (mounting method). The 7427140S requires alternatives that maintain the 0.402" (10.20mm) inner diameter to ensure cable fit compatibility and preserve the 98 Ohm impedance at 100 MHz for consistent electromagnetic filtering performance.

Two substitute categories exist:

Category 1: Direct Mechanical Substitutes (Same Inner Diameter, Same Impedance)

• Part 7427026: Clip-together design with identical inner diameter and impedance, but different mounting approach (free hanging vs. cable tie)

Category 2: Functional Alternatives (Same Inner Diameter, Different Impedance)

• Parts 7427153 and 7427153S: Hinged snap-on design with matching inner diameter but elevated impedance (165 Ohm @ 100 MHz), requiring electromagnetic performance verification for specific applications

Parameter Comparison

Engineering Selection Recommendations

For applications requiring identical electromagnetic performance (98 Ohm @ 100 MHz) with 0.402" inner diameter:

Part 7427026 serves as the primary substitute. This component maintains electrical equivalence through identical impedance and inner diameter specifications. The transition from cable tie mounting to free-hanging design requires mechanical integration assessment within the target application. Both parts utilize 4W620 ferrite material, ensuring consistent frequency response characteristics.

For applications where impedance elevation is acceptable:

Parts 7427153 and 7427153S provide active product alternatives with enhanced impedance (165 Ohm @ 100 MHz). These components feature ROHS3 compliance and REACH unaffected status, supporting modern regulatory requirements. The 7427153S variant in tray packaging offers inventory availability (1106 pcs) compared to bulk packaging of 7427153. Both require chassis mount integration rather than cable tie attachment. The reduced inner diameter (0.315" vs. 0.402") necessitates cable diameter compatibility verification.

Selection between 7427153 and 7427153S depends on packaging and inventory requirements; electrical performance is identical.

Frequently Asked Questions (FAQ)

Q: Can 7427026 directly replace 7427140S in existing designs?

A: Electrical substitution is valid due to matching impedance (98 Ohm @ 100 MHz) and inner diameter (0.402"). Mechanical integration differs: 7427026 uses clip-together design for free-hanging installation versus cable tie mounting of 7427140S. Design layout modification is required.

Q: What is the significance of the impedance difference between 7427140S (98 Ohm) and 7427153/7427153S (165 Ohm)?

A: Impedance determines attenuation characteristics at the operating frequency. Higher impedance (165 Ohm) provides greater EMI suppression but may alter frequency response. Application-specific electromagnetic performance requirements must be evaluated before substitution.

Q: Are 7427153 and 7427153S electrically identical?

A: Yes. Both components share identical electrical specifications (165 Ohm @ 100 MHz), material composition (4W620), and mechanical dimensions. The distinction is packaging format: 7427153 is bulk packaged, while 7427153S is tray packaged.

Q: Why does 7427026 have a different outer diameter than 7427140S?

A: The 7427026 is designed for free-hanging installation and does not require the same external envelope as the cable tie variant. The 0.098" outer diameter reflects its clip-together mechanical design rather than the hinged snap-on structure of 7427140S.

Q: What compliance certifications apply to substitute parts?

A: Parts 7427153 and 7427153S carry ROHS3 compliance and REACH unaffected status. Part 7427026 compliance information is not provided in available specifications. Regulatory requirements for the target application should be verified against component certifications.

Q: Can 7427153/7427153S be used in cable tie applications?

A: No. These components are designed for chassis mount installation with key-required hinged snap-on design. Cable tie mounting requires the cable tie design variant, making 7427026 the appropriate choice for this application type.