LPWI160808SR24T Equivalent & Substitute Parts

Part Overview

The LPWI160808SR24T is a 240 nH shielded thin film inductor manufactured by Littelfuse Inc., designed for surface mount applications in the 0603 (1608 Metric) package. This component delivers 2.8 A current rating with 40 mOhm maximum DC resistance and operates across the -40°C to 125°C temperature range. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications.

Substiute Parts

LPWI160808SR24T

Littelfuse Inc.In Stock: 867LPWI160808SR24T Datasheet

Current PartRFQ

MCKK1608TR24MN

Taiyo YudenIn Stock: 95266MCKK1608TR24MN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LPWI160808SR24T is determined by the following critical parameters:

• Inductance Value: 240 nH with ±20% tolerance
• Package Footprint: 0603 (1608 Metric) surface mount
• Shielding Type: Shielded construction required
• Current Rating: Minimum 2.6 A (acceptable reduction from 2.8 A within operational margin)
• DC Resistance: Maximum 40 mOhm (38 mOhm acceptable as lower value)
• Operating Temperature: -40°C to 125°C
• Compliance: ROHS3 Compliant, MSL 1

The MCKK1608TR24MN from Taiyo Yuden meets all substitution criteria. Both components share identical inductance specifications, package dimensions, temperature range, and compliance certifications. The substitute exhibits marginally lower current rating (2.6 A vs. 2.8 A) and improved DC resistance (38 mOhm vs. 40 mOhm), making it functionally compatible for equivalent circuit performance.

Parameter Comparison

Engineering Selection Recommendations

The MCKK1608TR24MN qualifies as a direct substitute for the obsolete LPWI160808SR24T based on electrical and mechanical compatibility. Both components maintain ROHS3 compliance and MSL 1 ratings, ensuring regulatory and environmental handling consistency. The substitute part carries active product status with substantial inventory availability (95,240 pcs), providing supply chain continuity for production requirements.

The height differential (0.80mm vs. 1.00mm seated height) requires PCB layout verification to confirm clearance compatibility with surrounding components and enclosure constraints. The reduced current rating (2.6 A vs. 2.8 A) is acceptable for applications operating below 2.6 A; circuits requiring the full 2.8 A rating require alternative evaluation.

Frequently Asked Questions (FAQ)

Q: Can the MCKK1608TR24MN replace the LPWI160808SR24T in all applications?

A: Substitution is valid for circuits operating at or below 2.6 A. Applications requiring the full 2.8 A rating require alternative component evaluation. PCB layout must accommodate the 0.20mm additional seated height.

Q: Are the package footprints identical?

A: Both components use the 0603 (1608 Metric) package with identical length and width dimensions (1.60mm x 0.80mm). Seated height differs by 0.20mm (0.80mm vs. 1.00mm), requiring clearance verification.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the LPWI160808SR24T and MCKK1608TR24MN are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the inductance tolerance for both parts?

A: Both components specify ±20% inductance tolerance at 1 MHz test frequency.

Q: Is the lower DC resistance of the substitute part beneficial?

A: Yes. The MCKK1608TR24MN exhibits 38 mOhm maximum DC resistance compared to 40 mOhm maximum, resulting in reduced resistive losses and improved efficiency within the same inductance specification.