Würth Elektronik 749023015 LAN Pulse Transformer Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 749023015 is a WE-LAN 10/100/1000 BASE-T SMT pulse transformer designed for LAN applications requiring 350µH inductance with 1CT:1CT configuration for both transmitter and receiver circuits. This component is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and new design implementations.

Substiute Parts

749023015

Würth ElektronikIn Stock: 1435749023015 Datasheet

Current PartRFQ

749023015B

Würth ElektronikIn Stock: 714749023015B Datasheet

MFR RecommendedRFQ

H6062FNL

Pulse ElectronicsIn Stock: 2154H6062FNL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 749023015 are qualified based on the following critical parameters that determine functional equivalence:

• Inductance Value: 350µH (exact match required)
• Turns Ratio Configuration: 1CT:1CT Transmitter, 1CT:1CT Receiver (exact match required)
• Transformer Type: LAN 10/100/1000 Base-T (functional compatibility)
• Operating Temperature Range: 0°C ~ 70°C (minimum requirement)
• Mounting Type: Surface Mount (SMT compatible)
• Regulatory Compliance: RoHS and REACH status alignment

Two substitute parts meet these criteria: the Würth Elektronik 749023015B (manufacturer recommended upgrade within the same series) and the Pulse Electronics H6062FNL (cross-manufacturer equivalent with identical electrical specifications).

Parameter Comparison

Engineering Selection Recommendations

Würth Elektronik 749023015B is the manufacturer-recommended substitute, maintaining continuity within the WE-LAN series. This part is active and carries ROHS3 compliance with identical MSL and REACH status to the original. Selection of this part is appropriate for designs requiring direct series compatibility and ongoing manufacturer support.

Pulse Electronics H6062FNL provides cross-manufacturer equivalence with confirmed 350µH inductance and 1CT:1CT configuration matching the original specification. This part is active with RoHS compliance and identical operating temperature range. Physical dimensions differ slightly (0.689" L x 0.600" W versus 0.720" L x 0.480" W), and packaging is supplied in Tube format rather than Tape & Reel. This part is suitable for applications where cross-manufacturer sourcing is acceptable and PCB layout accommodates the dimensional variance.

Both substitutes maintain regulatory compliance (RoHS, REACH, EAR99 classification) and MSL Level 1 handling requirements consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can the 749023015B be used as a direct replacement for the 749023015?

A: The 749023015B is the manufacturer-recommended upgrade from Würth Elektronik. While detailed electrical specifications for the 749023015B are not provided in the available documentation, it is designated as a direct substitute for the obsolete 749023015 within the WE-LAN series and carries identical compliance certifications.

Q: What are the physical dimension differences between the H6062FNL and the original 749023015?

A: The H6062FNL measures 0.689" L x 0.600" W (17.50mm x 15.24mm) with a maximum seated height of 0.225" (5.72mm), compared to the original 0.720" L x 0.480" W (18.30mm x 12.20mm) with 0.250" (6.35mm) height. PCB layout verification is required to confirm fit within existing designs.

Q: Are the electrical specifications identical between the H6062FNL and 749023015?

A: Both parts specify 350µH inductance and 1CT:1CT Transmitter/Receiver configuration. Operating temperature ranges are identical at 0°C ~ 70°C. Both maintain MSL Level 1 and REACH Unaffected status.

Q: What packaging formats are available for these substitutes?

A: The 749023015 is supplied in Tape & Reel (TR) format. The 749023015B packaging format is not specified in available data. The H6062FNL is supplied in Tube packaging, which may require process adjustments for automated assembly operations.

Q: Do both substitutes meet the same regulatory requirements as the original?

A: Both substitutes are RoHS compliant and REACH Unaffected. The 749023015B maintains ROHS3 compliance matching the original. The H6062FNL carries RoHS compliance. Both are classified as EAR99 under ECCN and share HTSUS code 8504.31.2000 with the original component.