LPWI201208SR24T Equivalent & Substitute Parts

Part Overview

The LPWI201208SR24T is a 240 nH shielded thin film inductor manufactured by Littelfuse Inc., rated for 3.9 A continuous current with a maximum DC resistance of 22 mOhm. This component is designed for surface mount applications in the 0805 (2012 Metric) package format. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

LPWI201208SR24T

Littelfuse Inc.In Stock: 821LPWI201208SR24T Datasheet

Current PartRFQ

DFE201612PD-R24M=P2

Murata ElectronicsIn Stock: 2678DFE201612PD-R24M=P2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LPWI201208SR24T is determined by strict equivalence across the following critical parameters:

• Inductance Value: 240 nH with ±20% tolerance
• Current Rating: Minimum 3.9 A continuous current capability
• DC Resistance: Maximum 22 mOhm
• Shielding Configuration: Shielded construction required
• Operating Temperature: -40°C to 125°C range
• Mounting and Package: Surface mount, compatible footprint dimensions

The substitute part DFE201612PD-R24M=P2 meets all critical electrical parameters. While the package designation differs (0806 vs. 0805), the physical dimensions remain compatible for PCB layout purposes. The substitute offers improved current saturation rating (5 A vs. 4.5 A) and active product status, providing enhanced design margin and supply continuity.

Parameter Comparison

Engineering Selection Recommendations

The DFE201612PD-R24M=P2 is qualified as a direct substitute for the LPWI201208SR24T based on electrical parameter equivalence and regulatory compliance alignment. Both components maintain ROHS3 compliance and identical moisture sensitivity classification. The substitute component carries active product status from Murata Electronics, ensuring long-term availability and supply chain stability compared to the obsolete Littelfuse part.

The substitute's higher saturation current rating (5 A vs. 4.5 A) provides additional design margin without compromising the specified 3.9 A operating point. DC resistance specifications are identical at 22 mOhm maximum, ensuring equivalent thermal performance and power dissipation characteristics in the application circuit.

Frequently Asked Questions (FAQ)

Q: Can DFE201612PD-R24M=P2 be used as a direct replacement for LPWI201208SR24T?

A: Yes. Both components share identical inductance values (240 nH), inductance tolerance (±20%), DC resistance (22 mOhm maximum), shielding configuration, and operating temperature range (-40°C to 125°C). The substitute meets or exceeds the current rating requirement (4 A vs. 3.9 A specified).

Q: What is the difference between the 0805 and 0806 package designations?

A: The 0805 (2012 Metric) measures 2.00 mm × 1.20 mm with a maximum seated height of 0.80 mm. The 0806 (2016 Metric) measures 2.00 mm × 1.60 mm with a maximum seated height of 1.20 mm. The substitute is slightly wider and taller but maintains the same length. PCB footprint compatibility must be verified for the specific application layout.

Q: Are there compliance or certification differences between the two parts?

A: Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. The substitute carries AEC-Q200 automotive qualification and REACH unaffected status, providing additional certification coverage for regulated applications.

Q: Why is the LPWI201208SR24T listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured or supported by Littelfuse Inc. The DFE201612PD-R24M=P2 from Murata Electronics maintains active production status, ensuring continued availability for new designs and production support.

Q: What is the saturation current difference, and does it affect substitution?

A: The LPWI201208SR24T has a saturation current of 4.5 A, while the substitute has 5 A. Since the application operates at 3.9 A continuous current, both components remain well within saturation limits. The higher saturation rating of the substitute provides additional design margin.