Equivalent & Substitute Parts for Würth Elektronik 742792005

Part Overview

The Würth Elektronik 742792005 is a ferrite bead designed for signal line filtering in 0805 surface mount packages. This component is classified as Obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability. The part operates across a temperature range of -55°C to 125°C and is fully RoHS3 compliant.

Substiute Parts

742792005

Würth ElektronikIn Stock: 5368742792005 Datasheet

Current PartRFQ

742792011

Würth ElektronikIn Stock: 5000381742792011 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 742792005 is determined by the following critical parameters:

• Package / Case: 0805 (2012 Metric) surface mount form factor
• Filter Type: Signal Line ferrite bead
• Number of Lines: Single line configuration
• Series Compatibility: WE-CBF series
• Compliance: RoHS3 and REACH requirements
• Operating Temperature Range: -55°C ~ 125°C

The substitute part 742792011 maintains identical package geometry, filter classification, and compliance certifications. Variations in impedance, current rating, and DC resistance reflect design improvements within the same product family and do not preclude functional substitution when circuit requirements permit.

Parameter Comparison

Engineering Selection Recommendations

The 742792011 is the manufacturer-recommended substitute for the obsolete 742792005. Both components share identical mechanical dimensions, package classification, and regulatory compliance status. The 742792011 maintains Active product status, ensuring long-term supply chain availability and support.

Selection of the 742792011 is appropriate for applications where the increased impedance specification (10 Ohms versus 5 Ohms @ 100 MHz) and enhanced current rating (3A versus 700mA) do not conflict with circuit design parameters. The lower DC resistance of the substitute (25mOhm versus 70mOhm) provides improved signal integrity characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 742792011 be used as a direct replacement for the 742792005?

A: Both parts share identical 0805 package dimensions, surface mount configuration, and compliance certifications. Substitution is mechanically and electrically feasible when circuit impedance and current requirements align with the substitute specifications.

Q: What are the key differences between these ferrite beads?

A: The primary differences are impedance (5 Ohms versus 10 Ohms @ 100 MHz), maximum current rating (700mA versus 3A), and DC resistance (70mOhm versus 25mOhm). The 742792011 offers higher current capacity and lower insertion loss.

Q: Why is the 742792005 listed as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 742792011 represents the active equivalent within the WE-CBF series and is the recommended replacement for new designs and inventory replenishment.

Q: Are there any package or mounting differences?

A: No. Both components use identical 0805 (2012 Metric) surface mount packages with matching height specifications of 0.043" (1.10mm) and footprint dimensions of 0.079" L x 0.047" W.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the 742792005 and 742792011 are ROHS3 compliant, REACH unaffected, and classified as Moisture Sensitivity Level 1 (Unlimited).