Würth Elektronik 744373360033 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744373360033 is a 330 nH shielded molded inductor designed for surface mount applications. This component delivers 10.6 A continuous current rating with 5 mOhm maximum DC resistance, operating across the industrial temperature range of -40°C to 125°C. The part is actively produced and maintains full RoHS3 compliance with unlimited moisture sensitivity rating. Substitute parts are identified to provide design flexibility when primary inventory is unavailable or when application requirements permit alternative electrical or mechanical specifications.

Substiute Parts

744373360033

Würth ElektronikIn Stock: 2549744373360033 Datasheet

Current PartRFQ

PA4340.331NLT

Pulse ElectronicsIn Stock: 13060PA4340.331NLT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Pulse Electronics PA4340.331NLT qualifies as a direct substitute based on the following critical parameters:

Matching Electrical Specifications:

• Identical inductance value: 330 nH at 100 kHz test frequency
• Identical inductance tolerance: ±20%
• Identical DC resistance: 5 mOhm maximum
• Shielded construction maintained
• Identical operating temperature range: -40°C to 125°C

Allowable Variations:

• Current rating: 14 A (substitute) versus 10.6 A (main part). The substitute provides higher current capacity, permitting use in applications rated for the main part's 10.6 A specification.
• Saturation current: 18 A (substitute) versus 22.5 A (main part). Both values exceed the continuous current ratings and remain within acceptable operating margins.
• Physical dimensions: 6.00 mm L × 5.40 mm W (substitute) versus 5.20 mm L × 5.20 mm W (main part). Footprint differences require PCB layout verification.
• Package classification: Nonstandard (substitute) versus 2-SMD (main part). Both are surface mount configurations.

Parameter Comparison

Engineering Selection Recommendations

Both the Würth Elektronik 744373360033 and Pulse Electronics PA4340.331NLT maintain active production status with full RoHS3 compliance and unlimited moisture sensitivity ratings, ensuring long-term availability and environmental regulatory alignment.

The Würth Elektronik part is preferred when PCB layout constraints require the smaller 5.20 mm × 5.20 mm footprint or when the 22.5 A saturation current specification is a design requirement.

The Pulse Electronics substitute is suitable when higher continuous current capacity (14 A) provides design margin or when inventory availability of the primary part is limited. PCB layout verification is required due to the larger 6.00 mm × 5.40 mm footprint. The Pulse Electronics part carries AEC-Q200 automotive qualification, providing additional reliability assurance for applications requiring this standard.

Frequently Asked Questions (FAQ)

Q: Can the Pulse Electronics PA4340.331NLT replace the Würth Elektronik 744373360033 in all applications?

A: Substitution is valid when the application current requirement does not exceed 10.6 A continuous and the PCB layout accommodates the larger 6.00 mm × 5.40 mm footprint. The higher current rating of the substitute does not create incompatibility with lower-current designs.

Q: What are the footprint differences between these parts?

A: The Würth Elektronik part measures 5.20 mm × 5.20 mm, while the Pulse Electronics substitute measures 6.00 mm × 5.40 mm. Both maintain 3.00 mm maximum seated height. PCB layout verification is necessary before substitution.

Q: Are both parts compliant with environmental regulations?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental standards for electronic components.

Q: What is the significance of the saturation current difference?

A: The Würth Elektronik part specifies 22.5 A saturation current, while the Pulse Electronics substitute specifies 18 A. Both values exceed the continuous current ratings and remain within acceptable operating margins for their respective designs. This parameter does not affect substitution validity for applications operating within the 10.6 A continuous rating.

Q: Does the Pulse Electronics part require additional qualification?

A: The Pulse Electronics PA4340.331NLT carries AEC-Q200 automotive qualification. Applications requiring this certification benefit from this additional qualification level. Standard industrial applications do not require this certification.