Würth Elektronik 744901115 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744901115 is a 15 nH unshielded thin film inductor designed for surface mount applications in the 0402 (1005 Metric) package. This component operates at 130 mA maximum current with a DC resistance of 1.8 Ohm maximum and is part of the WE-TCI series. The part is currently active in production and widely available. Equivalent parts may be required due to supply chain constraints, regional availability, or specific design requirements that align with alternative manufacturer specifications within the same electrical and mechanical parameters.

Substiute Parts

744901115

Würth ElektronikIn Stock: 7209744901115 Datasheet

Current PartRFQ

ATFC-0402-15NG-T

Abracon LLCIn Stock: 45854ATFC-0402-15NG-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 744901115 is determined by strict alignment with the following electrical and mechanical parameters:

• Inductance value of 15 nH with ±2% tolerance
• Current rating of 130 mA minimum
• DC resistance not exceeding 1.8 Ohm
• Q factor of 13 @ 500 MHz
• Self resonant frequency of 3.3 GHz
• Unshielded thin film construction
• 0402 (1005 Metric) surface mount package
• Physical dimensions: 0.039" L x 0.020" W (1.00 mm x 0.50 mm)
• Height seated maximum of 0.016" (0.40 mm) or equivalent
• Active product status
• ROHS3 compliance

The Abracon LLC ATFC-0402-15NG-T meets all critical electrical parameters and package specifications, making it a direct substitute for the 744901115.

Parameter Comparison

Engineering Selection Recommendations

Both the Würth Elektronik 744901115 and Abracon LLC ATFC-0402-15NG-T are active products with ROHS3 compliance and REACH unaffected status. The Abracon part offers a marginally lower DC resistance (1.75 Ohm versus 1.8 Ohm maximum), which may provide a slight advantage in applications sensitive to resistive losses. The Abracon component has a slightly lower seated height (0.015" versus 0.016"), which remains compatible with standard 0402 package specifications. Both parts maintain identical electrical performance at the specified test frequency of 500 MHz and across the full inductance and Q factor parameters. Selection between these parts should be based on availability, supply chain requirements, and design margin considerations for DC resistance.

Frequently Asked Questions (FAQ)

Q: Can the Abracon ATFC-0402-15NG-T be used as a direct replacement for the Würth Elektronik 744901115?

A: Yes. Both parts share identical inductance (15 nH), tolerance (±2%), current rating (130 mA), Q factor (13 @ 500 MHz), self resonant frequency (3.3 GHz), package dimensions (0402 / 1005 Metric), and mounting type (surface mount). The Abracon part has a lower maximum DC resistance (1.75 Ohm versus 1.8 Ohm) and slightly lower seated height (0.015" versus 0.016"), both of which are compatible with the original design specifications.

Q: Are there any differences in operating temperature range between these parts?

A: Yes. The Würth Elektronik 744901115 operates from -40°C to 125°C, while the Abracon ATFC-0402-15NG-T operates from -45°C to 85°C. Design applications requiring operation above 85°C must use the Würth part. Applications operating within the -45°C to 85°C range are compatible with either part.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the Würth Elektronik 744901115 and Abracon ATFC-0402-15NG-T are ROHS3 compliant, REACH unaffected, classified as EAR99, and share the same HTSUS code (8504.50.8000). Both have MSL rating of 1 (Unlimited).

Q: What is the significance of the DC resistance difference between these parts?

A: The Abracon part has a maximum DC resistance of 1.75 Ohm compared to the Würth part's 1.8 Ohm maximum. This 0.05 Ohm difference is negligible in most applications but may be relevant in high-current or low-impedance circuit designs where resistive losses are critical.

Q: Are the physical dimensions identical between these parts?

A: The length and width are identical (0.039" L x 0.020" W / 1.00 mm x 0.50 mm). The seated height differs slightly: Würth 744901115 is 0.016" (0.40 mm) maximum, while Abracon ATFC-0402-15NG-T is 0.015" (0.37 mm) maximum. Both heights are within standard 0402 package specifications and compatible with typical PCB assembly processes.