Würth Elektronik 74455015 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 74455015 is a 1.5 µH unshielded drum core wirewound inductor rated for 2.8 A continuous current with a maximum DC resistance of 50 mOhm. This surface mount component operates across the temperature range of -40°C to 100°C and is designed for applications requiring fixed inductance in compact nonstandard packaging. The part maintains active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent parts become necessary when primary inventory is unavailable or when application requirements permit operation within the extended thermal or current specifications of alternative manufacturers.

Substiute Parts

74455015

Würth ElektronikIn Stock: 386674455015 Datasheet

Current PartRFQ

P0770.152NL

Pulse ElectronicsIn Stock: 5306P0770.152NL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Würth Elektronik 74455015 is determined by strict equivalence across the following critical parameters: inductance value (1.5 µH), inductance tolerance (±20%), DC resistance specification (50 mOhm maximum), shielding configuration (unshielded), physical dimensions (0.260" x 0.175" x 0.115"), and surface mount packaging. The substitute part must maintain the same inductance frequency test point (100 kHz) and support the same mounting footprint. Current rating and operating temperature range may vary within acceptable limits provided the substitute meets or exceeds the primary part's current saturation specification and does not restrict the application's thermal operating window below the required minimum.

Parameter Comparison

Engineering Selection Recommendations

Both the Würth Elektronik 74455015 and Pulse Electronics P0770.152NL are active products with full RoHS3 compliance and REACH unaffected status. The Pulse Electronics substitute maintains identical inductance, tolerance, DC resistance, and physical dimensions. The primary distinction is the current rating specification: the Würth part is rated for 2.8 A continuous current, while the Pulse part is rated for 2.6 A. Both parts share the same saturation current of 2.6 A. The Pulse Electronics substitute provides an extended operating temperature range to 130°C compared to the Würth part's 100°C maximum. Selection between these parts depends on whether the application requires the full 2.8 A continuous current rating of the Würth part or whether operation within the 2.6 A specification of the Pulse part is acceptable. Both parts are suitable for applications operating within the -40°C to 100°C window.

Frequently Asked Questions (FAQ)

Q: Can the Pulse Electronics P0770.152NL be used as a direct replacement for the Würth Elektronik 74455015?

A: Direct replacement is possible when the application current requirement does not exceed 2.6 A continuous. Both parts share identical inductance (1.5 µH), tolerance (±20%), DC resistance (50 mOhm max), physical dimensions, and mounting configuration. The Pulse part's extended temperature rating to 130°C provides additional thermal margin for applications operating above 100°C.

Q: What is the significance of the current rating difference between these parts?

A: The Würth part is rated for 2.8 A continuous current, while the Pulse part is rated for 2.6 A. Both parts saturate at 2.6 A. Applications requiring continuous current above 2.6 A must use the Würth part. Applications operating at or below 2.6 A continuous current can use either part.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts measure 0.260" L x 0.175" W with a seated height of 0.115" (6.60mm x 4.45mm x 2.92mm). They are compatible with the same PCB footprint and mounting requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the Würth Elektronik 74455015 and Pulse Electronics P0770.152NL are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. Both are classified under ECCN EAR99 and HTSUS 8504.50.4000.

Q: What is the inductance test frequency for these parts?

A: Both parts are tested at 100 kHz for inductance specification verification.