Würth Elektronik 7447779233 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 7447779233 is a 330 µH shielded drum core wirewound inductor rated for 390 mA continuous current with a maximum DC resistance of 1.86Ohm. This component is part of the WE-PD Robust series and maintains active product status with full AEC-Q200 compliance. Equivalent parts are identified when inductance value, shielding type, mounting configuration, and thermal operating range align within specified tolerances, enabling direct substitution in surface mount applications requiring robust electromagnetic filtering and energy storage.

Substiute Parts

7447779233

Würth ElektronikIn Stock: 21347447779233 Datasheet

Current PartRFQ

P1167.334NLT

Pulse ElectronicsIn Stock: 3684P1167.334NLT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7447779233 is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value of 330 µH with ±20% tolerance
• Shielded construction to maintain electromagnetic isolation
• Surface mount configuration with nonstandard package dimensions
• Wirewound construction type

Secondary Compatibility Factors:

• Current rating must support minimum 350 mA continuous operation
• DC resistance below 2.0Ohm maximum
• Operating temperature range spanning -40°C minimum to 125°C minimum
• RoHS3 compliance and REACH unaffected status

The substitute part P1167.334NLT from Pulse Electronics meets these criteria with equivalent inductance, shielding, and mounting characteristics while maintaining compatible electrical performance within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

Both components maintain active product status and full RoHS3 compliance with REACH unaffected designation. The 7447779233 carries AEC-Q200 automotive qualification, establishing its suitability for regulated applications. The P1167.334NLT substitute provides equivalent inductance and shielding performance with lower DC resistance (1.47Ohm vs 1.86Ohm), reducing thermal dissipation in the inductor element. The substitute's 350 mA current rating is lower than the primary part's 390 mA specification; applications requiring continuous current above 350 mA should retain the 7447779233. Dimensional variance of 0.24mm in length and width between parts requires PCB layout verification for space-constrained designs. Both components operate across the required -40°C to 125°C temperature envelope with extended upper range capability in the substitute part.

Frequently Asked Questions (FAQ)

Q: Can P1167.334NLT replace 7447779233 in all applications?

A: Substitution is valid for applications operating at or below 350 mA continuous current. Designs requiring the full 390 mA rating of the primary part should not use the substitute without circuit redesign.

Q: What is the impact of the 0.24mm dimensional difference?

A: The substitute part measures 7.54mm x 7.54mm compared to 7.30mm x 7.30mm for the primary part. PCB footprint and component placement must accommodate this variance. Height remains identical at 4.50mm maximum.

Q: Are both parts suitable for automotive applications?

A: The 7447779233 carries explicit AEC-Q200 qualification for automotive use. The P1167.334NLT does not list automotive ratings in the provided specifications. Applications requiring automotive certification should use the primary part.

Q: How do the DC resistance values affect circuit performance?

A: The substitute's lower DC resistance (1.47Ohm vs 1.86Ohm) reduces resistive losses by approximately 21%, resulting in lower heat generation and improved efficiency in current-carrying applications.

Q: Are moisture sensitivity and RoHS compliance identical?

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity rating and ROHS3 compliance. REACH status is unaffected for both components, enabling use in regulated markets without additional material documentation.