LPWI252010B2R2T Equivalent & Substitute Parts

Part Overview

The LPWI252010B2R2T is a 2.2 µH shielded thin film inductor manufactured by Littelfuse, designed for surface mount applications in the 1008 (2520 Metric) package. This component is rated for 2.3 A continuous current with a maximum DC resistance of 95mOhm and operates across the temperature range of -40°C to 125°C. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing design support and production continuity.

Substiute Parts

LPWI252010B2R2T

LittelfuseIn Stock: 1038LPWI252010B2R2T Datasheet

Current PartRFQ

DFE252010F-2R2M=P2

Murata ElectronicsIn Stock: 300126DFE252010F-2R2M=P2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LPWI252010B2R2T is determined by strict equivalence across the following critical parameters:

• Inductance value: 2.2 µH with ±20% tolerance
• Current rating: 2.3 A minimum continuous current capability
• Saturation current (Isat): 3.1 A minimum
• DC resistance: 97mOhm maximum (within acceptable operating margin)
• Package / Case: 1008 (2520 Metric) surface mount
• Physical dimensions: 0.098" L x 0.079" W with 0.039" maximum seated height
• Operating temperature range: -40°C to 125°C
• Shielding: Shielded construction required
• Compliance: ROHS3 compliant

The DFE252010F-2R2M=P2 from Murata Electronics meets all substitution criteria and is classified as an active product, providing long-term availability and production support.

Parameter Comparison

Engineering Selection Recommendations

The DFE252010F-2R2M=P2 is the qualified substitute for the obsolete LPWI252010B2R2T. Both components maintain identical electrical specifications across inductance, current rating, saturation current, and operating temperature range. The DC resistance differential of 2mOhm (97mOhm versus 95mOhm maximum) remains within acceptable engineering tolerance for this application class.

The Murata component carries active product status, ensuring continued availability and manufacturing support. Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity classification, confirming compatibility with standard PCB assembly and storage protocols. The identical package footprint, physical dimensions, and shielded construction enable direct board-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can the DFE252010F-2R2M=P2 be used as a direct replacement for the LPWI252010B2R2T?

A: Yes. Both components share identical inductance values, current ratings, saturation currents, package dimensions, and operating temperature ranges. The 2mOhm difference in maximum DC resistance is within acceptable engineering tolerance for this inductor class.

Q: What is the primary difference between these two inductors?

A: The LPWI252010B2R2T uses thin film construction with metal composite core material, while the DFE252010F-2R2M=P2 employs drum core wirewound construction with iron powder core material. Both achieve equivalent electrical performance within specified tolerances.

Q: Are there any PCB layout or assembly considerations when substituting these parts?

A: No. Both components use identical 1008 (2520 Metric) surface mount packages with matching footprints, dimensions, and seated heights. No PCB redesign or assembly process modification is required.

Q: What is the significance of the active product status for the Murata part?

A: Active product status indicates ongoing manufacturing and long-term availability. This provides supply chain continuity and eliminates the risk of obsolescence associated with the Littelfuse component.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both the LPWI252010B2R2T and DFE252010F-2R2M=P2 are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity classification, meeting current environmental and handling standards.