Würth Elektronik 74456022 Fixed Inductor - Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 74456022 is a 2.2 µH unshielded drum core wirewound inductor rated for 6.5 A continuous current with a maximum DC resistance of 11 mOhm. This component is designed for surface mount applications requiring low inductance values with high current capacity in compact form factors. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

74456022

Würth ElektronikIn Stock: 269174456022 Datasheet

Current PartRFQ

P0751.222NL

Pulse ElectronicsIn Stock: 4192P0751.222NL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74456022 are qualified based on the following critical parameters:

• Inductance Value: Exact match at 2.2 µH with ±20% tolerance
• Current Rating: Minimum 6.1 A to maintain acceptable thermal performance
• DC Resistance: Maximum 15 mOhm to ensure acceptable power dissipation characteristics
• Shielding Configuration: Unshielded construction
• Mounting Technology: Surface mount package
• Environmental Compliance: ROHS3 compliance and MSL 1 rating
• Operating Temperature: Minimum -40°C to 125°C range

The Pulse Electronics P0751.222NL meets these substitution criteria with equivalent inductance, compatible current ratings, and matching environmental certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Würth Elektronik 74456022 and Pulse Electronics P0751.222NL are active production components with ROHS3 compliance and MSL 1 ratings, making them suitable for equivalent application use. The primary electrical differences are the DC resistance specification (11 mOhm versus 15 mOhm maximum) and saturation current rating (10.2 A versus 7 A). These differences remain within acceptable substitution parameters for applications where the 6.1 A current rating of the Pulse part is sufficient. Both components maintain identical inductance values, tolerance specifications, and environmental operating ranges. Selection between these parts should be based on availability, lead time requirements, and specific application current demands.

Frequently Asked Questions (FAQ)

Q: Can the Pulse Electronics P0751.222NL directly replace the Würth Elektronik 74456022 in all applications?

A: The Pulse part is compatible for applications where the 6.1 A current rating meets design requirements. If your circuit requires the full 6.5 A rating of the Würth part, verify that the Pulse component's 6.1 A specification is acceptable for your thermal and performance margins.

Q: What is the significance of the different DC resistance values?

A: The Würth part specifies 11 mOhm maximum DCR while the Pulse part specifies 15 mOhm maximum. Higher DCR results in increased power dissipation at rated current. For applications sensitive to inductor heating, the lower DCR of the Würth part may be preferable.

Q: Are the physical dimensions compatible between these parts?

A: The parts have similar but not identical dimensions. Würth: 12.70mm L × 10.00mm W × 5.30mm H; Pulse: 12.95mm L × 9.40mm W × 5.46mm H. Verify PCB layout and component placement clearances before substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Both are classified under ECCN EAR99 and HTSUS 8504.50.4000.

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

A: Both the Würth Elektronik 74456022 and Pulse Electronics P0751.222NL are tested at 100 kHz inductance frequency, ensuring consistent measurement standards across both parts.