Würth Elektronik 744871006 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744871006 is a shielded 2-coil inductor array designed for surface mount applications. This component features dual inductance configurations: 27.2 µH when coils are connected in series and 6.8 µH when connected in parallel. The part is classified as Active status and is ROHS3 compliant, making it suitable for modern electronic assemblies requiring regulated component specifications.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit operation within the electrical and mechanical tolerances of alternative manufacturers' offerings.

Substiute Parts

744871006

Würth ElektronikIn Stock: 2391744871006 Datasheet

Current PartRFQ

PF0552.682NL

Pulse ElectronicsIn Stock: 1640PF0552.682NL Datasheet

MFR RecommendedRFQ

SRF1260-6R8Y

Bourns Inc.In Stock: 6233SRF1260-6R8Y Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 744871006 is determined by the following critical parameters:

• Inductance values in both parallel (6.8 µH) and series (27.2 µH) configurations must remain within the tolerance band of ±20%
• Current rating in parallel configuration must meet or exceed 2.8 A
• DC resistance (DCR) in parallel configuration must not exceed 30 mOhm
• Physical dimensions must accommodate the 12.50 mm x 12.50 mm footprint
• Shielding type must be shielded
• Operating temperature range must span -40°C to 125°C
• Surface mount mounting type is required
• RoHS3 compliance is mandatory

The substitute parts listed below satisfy these electrical and mechanical constraints and are therefore considered functionally equivalent for applications where the 744871006 is specified.

Parameter Comparison

Engineering Selection Recommendations

All three components listed—744871006, PF0552.682NL, and SRF1260-6R8Y—maintain Active product status and ROHS3 compliance. The substitute parts satisfy the electrical parameters required for the 744871006 application.

PF0552.682NL offers superior DC resistance performance (12 mOhm Max versus 30 mOhm Max) and higher current rating capability (7.3 A versus 2.8 A in parallel configuration), with inductance values within acceptable tolerance. Height is reduced to 6.00 mm compared to 6.50 mm.

SRF1260-6R8Y provides exact inductance matching in both parallel and series configurations (6.8 µH and 27.2 µH respectively) with improved DC resistance (18.6 mOhm Max) and higher current rating (6.64 A). The tolerance specification is ±30%, which is wider than the primary part's ±20%. Height is 6.20 mm.

Component selection should be based on specific application requirements regarding current capacity, DC resistance constraints, and tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can PF0552.682NL be used as a direct replacement for 744871006?

A: PF0552.682NL meets the substitution criteria. Parallel inductance is 6.6 µH (within ±20% tolerance of 6.8 µH), series inductance is 27 µH (within ±20% tolerance of 27.2 µH), and DC resistance is 12 mOhm Max (better than the 30 mOhm Max requirement). Current rating and saturation specifications exceed the primary part requirements. Physical footprint is identical at 12.50 mm x 12.50 mm, with a height difference of 0.50 mm.

Q: What are the key differences between SRF1260-6R8Y and 744871006?

A: SRF1260-6R8Y matches the inductance values exactly (6.8 µH parallel, 27.2 µH series) and provides lower DC resistance (18.6 mOhm Max versus 30 mOhm Max). Current rating is higher at 6.64 A. The tolerance specification is ±30% compared to ±20%. Height is 6.20 mm versus 6.50 mm. All other parameters including shielding, temperature range, and compliance certifications are equivalent.

Q: Are there packaging differences between these parts?

A: The primary part 744871006 is specified as Tape & Reel (TR) packaging. PF0552.682NL packaging is not specified in the provided data. SRF1260-6R8Y is supplied in Tape & Reel (TR) packaging. Physical dimensions are consistent across all three parts at the 12.50 mm x 12.50 mm footprint, with minor height variations (6.00 mm to 6.50 mm).

Q: Do all substitute parts meet RoHS and environmental compliance requirements?

A: Yes. All three components are ROHS3 compliant, have Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status. Operating temperature range is -40°C to 125°C across all parts.

Q: Which substitute part offers the best DC resistance performance?

A: PF0552.682NL provides the lowest maximum DC resistance at 12 mOhm in parallel configuration, compared to 30 mOhm for 744871006 and 18.6 mOhm for SRF1260-6R8Y.