Equivalent & Substitute Parts for Würth Elektronik 749010111

Part Overview

The Würth Elektronik 749010111 is a pulse transformer classified as an obsolete product. As an obsolete component, direct replacement with an active equivalent is necessary for new designs, production continuity, and long-term supply chain reliability. The 749010111 is no longer manufactured and supported by Würth Elektronik, making identification of suitable substitute parts essential for engineering teams requiring pulse transformer functionality.

Substiute Parts

749010111

Würth ElektronikIn Stock: 1200749010111 Datasheet

Current PartRFQ

749020100A

Würth ElektronikIn Stock: 2237749020100A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 749020100A is identified as the manufacturer-recommended equivalent for the obsolete 749010111. Substitution is based on the following criteria:

Substitution Logic:

• Both parts are manufactured by Würth Elektronik, ensuring consistent design philosophy and quality standards
• Both parts function as pulse transformers within the LAN networking domain
• The 749020100A is an active product with ongoing manufacturer support, addressing the obsolescence status of the 749010111
• The substitute part maintains pulse transformer functionality required for network applications

Key Parameters Determining Substitution:

• Transformer type and application (LAN pulse transformer)
• Manufacturer consistency (Würth Elektronik)
• Functional classification (pulse transformer)
• Active product status with full manufacturer support

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Production: The 749020100A is the manufacturer-recommended substitute for the obsolete 749010111. Selection of the 749020100A is based on:

• Active Product Status: The 749020100A maintains active manufacturing status with full Würth Elektronik support, ensuring long-term availability and technical documentation
• Regulatory Compliance: The 749020100A is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements
• Inventory Availability: The 749020100A has higher current inventory (2160 Pcs) compared to the obsolete part (1128 Pcs), supporting production continuity
• Manufacturer Consistency: Both parts originate from Würth Elektronik, maintaining design consistency and quality assurance standards

For Existing Designs Using 749010111: Transition planning should prioritize the 749020100A as the direct replacement. The active status and regulatory compliance of the substitute part ensure compliance with current manufacturing standards and supply chain reliability.

Frequently Asked Questions (FAQ)

Q: Why is the 749010111 being discontinued? A: The 749010111 has reached obsolete status within Würth Elektronik's product portfolio. Obsolete products are no longer manufactured or supported by the manufacturer, necessitating transition to active alternatives.

Q: Is the 749020100A a direct replacement for the 749010111? A: The 749020100A is the manufacturer-recommended substitute for the 749010111. Both are pulse transformers manufactured by Würth Elektronik. The 749020100A is an active product with ongoing manufacturer support.

Q: What are the key differences between the 749010111 and 749020100A? A: The 749010111 specifications are not fully documented in available technical data. The 749020100A is specified as a LAN 10/100/1000 Base-T pulse transformer with 350µH inductance, 1:1 turns ratio, surface mount configuration, and operates across -40°C to 105°C. The 749020100A includes full regulatory compliance documentation (ROHS3, REACH unaffected).

Q: What is the packaging format for the 749020100A? A: The 749020100A is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

Q: Are there any moisture sensitivity considerations for the 749020100A? A: The 749020100A has Moisture Sensitivity Level (MSL) rating of 1, indicating unlimited shelf life without moisture control requirements.

Q: What regulatory certifications apply to the 749020100A? A: The 749020100A is ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8504.31.2000.

Q: Can I continue using the 749010111 in new designs? A: No. The 749010111 is obsolete and no longer supported by Würth Elektronik. New designs should specify the 749020100A to ensure long-term supply chain reliability and regulatory compliance.