Würth Elektronik 744052471 470µH Shielded Drum Core Inductor Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744052471 is a 470 µH shielded drum core wirewound inductor rated for 140 mA continuous current with a maximum DC resistance of 5.5Ohm. This surface mount component operates across the industrial temperature range of -40°C to 125°C and is designed for applications requiring stable inductance at 100 kHz test frequency. The part is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies. Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances for this inductor category.

Substiute Parts

744052471

Würth ElektronikIn Stock: 1277744052471 Datasheet

Current PartRFQ

PG0087.474NL

Pulse ElectronicsIn Stock: 847PG0087.474NL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 744052471 are qualified based on the following critical parameters:

• Inductance value: 470 µH (tolerance range ±20% to ±30% acceptable)
• Current rating: minimum 140 mA continuous
• Saturation current: minimum 180 mA
• DC resistance: maximum 5.5Ohm to 6.24Ohm (within acceptable loss budget)
• Shielding: shielded construction required
• Operating temperature: minimum -40°C to 125°C range
• Surface mount configuration
• RoHS3 compliance

The Pulse Electronics PG0087.474NL meets these substitution criteria with equivalent inductance, higher current rating (150 mA), comparable DC resistance (6.24Ohm), and extended temperature range (-40°C to 130°C).

Parameter Comparison

Engineering Selection Recommendations

Both the Würth Elektronik 744052471 and Pulse Electronics PG0087.474NL are Active status components with ROHS3 compliance and REACH unaffected status. The Pulse Electronics substitute provides equivalent inductance performance with tighter tolerance (±20% vs ±30%), higher continuous current rating (150 mA vs 140 mA), and extended upper operating temperature (130°C vs 125°C). The DC resistance differential of 0.74Ohm represents acceptable variation for most circuit applications. Selection between these parts should be based on specific circuit requirements for current margin, temperature headroom, and tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can the Pulse Electronics PG0087.474NL directly replace the Würth Elektronik 744052471?

A: Yes, within the electrical parameters specified. Both components provide 470 µH inductance at 100 kHz test frequency, shielded construction, surface mount configuration, and equivalent operating temperature ranges. The Pulse part offers improved current rating and tighter tolerance.

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

A: The Würth part specifies 5.5Ohm maximum while the Pulse part specifies 6.24Ohm maximum. This 0.74Ohm difference affects power dissipation and thermal performance. At 140 mA, the Würth part dissipates approximately 108.5 mW maximum, while the Pulse part dissipates approximately 122.4 mW maximum. Circuit thermal design should account for this variation.

Q: Are the package dimensions compatible?

A: The Würth 744052471 uses 2323 (5858 Metric) package measuring 5.80mm x 5.80mm x 2.00mm height. The Pulse PG0087.474NL uses a nonstandard package measuring 6.20mm x 6.20mm x 2.00mm height. Physical board layout space must accommodate the larger footprint of the Pulse component.

Q: What is the difference in saturation current between these inductors?

A: The Würth part saturates at 180 mA while the Pulse part saturates at 150 mA. For applications operating near saturation limits, the Würth part provides additional current headroom before inductance degradation occurs.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8504.50.4000. Both have Moisture Sensitivity Level 1 (Unlimited).