Pulse Transformer 7490100129 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 7490100129 is a pulse transformer designed for signal coupling and impedance matching applications in electronic circuits. This component is classified as obsolete, necessitating identification of active equivalent models to maintain design continuity and ensure long-term supply chain reliability. Substitute parts must maintain functional equivalence in pulse transformation characteristics while meeting current manufacturing and compliance standards.

Substiute Parts

7490100129

Würth ElektronikIn Stock: 12117490100129 Datasheet

Current PartRFQ

749010012C

Würth ElektronikIn Stock: 939749010012C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 7490100129 is based on the following criteria:

Functional Equivalence: The substitute part must perform the same pulse transformation function within the same application category.

Manufacturer Consistency: Würth Elektronik maintains design compatibility across its pulse transformer product line, ensuring mechanical and electrical interchangeability where part numbers follow sequential designation patterns.

Product Status Alignment: Active product status ensures continued availability, manufacturing support, and compliance with current regulatory requirements.

Compliance Requirements: Substitute parts must meet or exceed the compliance certifications of the original component, including RoHS and REACH standards where applicable.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 749010012C serves as the active equivalent for the obsolete 7490100129 pulse transformer. Selection of the 749010012C is supported by the following factors:

Product Status: The 749010012C maintains active product status, ensuring continued manufacturing availability and technical support from Würth Elektronik.

Compliance Certifications: The 749010012C is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Moisture Sensitivity: MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints during storage, handling, or assembly processes.

Supply Continuity: With 885 pieces in current inventory, the 749010012C provides reliable supply chain continuity for new designs and production requirements.

Frequently Asked Questions (FAQ)

Q: Can the 749010012C directly replace the 7490100129 in existing designs?

A: The 749010012C is the designated active equivalent for the 7490100129. Both components are Würth Elektronik pulse transformers within the same product family, supporting functional substitution.

Q: What is the significance of the ROHS3 compliance on the 749010012C?

A: ROHS3 compliance indicates the 749010012C meets current European Union Restriction of Hazardous Substances regulations, ensuring compliance with modern manufacturing and distribution standards.

Q: Does the MSL rating of 1 affect component handling?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity limitations. Standard handling procedures for electronic components apply without additional moisture control requirements.

Q: Why is the 7490100129 listed as obsolete?

A: Obsolete status indicates the 7490100129 is no longer in active production. The 749010012C represents the current active product offering from Würth Elektronik for this transformer category.

Q: Are there inventory considerations when selecting between the two parts?

A: The 7490100129 has 1103 pieces in stock, while the 749010012C has 885 pieces available. For new designs and long-term production, the 749010012C is recommended due to its active status and ongoing manufacturing support.