LPWI201208SR68T Equivalent & Substitute Parts

Part Overview

The LPWI201208SR68T is a 680 nH shielded thin film inductor manufactured by Littelfuse Inc., rated for 2.5 A continuous current with a maximum DC resistance of 65 mOhm. This component is packaged in the 0805 (2012 Metric) surface mount format and operates across the temperature range of -40°C to 125°C. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement continuity.

Substiute Parts

LPWI201208SR68T

Littelfuse Inc.In Stock: 1154LPWI201208SR68T Datasheet

Current PartRFQ

CIGT201610LMR68MNE

Samsung Electro-MechanicsIn Stock: 41371CIGT201610LMR68MNE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LPWI201208SR68T is determined by the following critical parameters:

• Inductance Value: 680 nH with ±20% tolerance
• Current Rating: Minimum 2.5 A continuous current capability
• Saturation Current: Minimum 3.1 A
• DC Resistance: Maximum 65 mOhm
• Shielding Type: Shielded construction required
• Core Material: Metal composite core
• Operating Temperature Range: -40°C to 125°C
• RoHS Compliance: ROHS3 Compliant

The substitute part CIGT201610LMR68MNE from Samsung Electro-Mechanics meets all critical electrical parameters. While the package format differs (0806 vs. 0805), both are surface mount inductors with compatible footprint dimensions and mounting characteristics. The substitute provides improved performance specifications with higher current rating (2.7 A vs. 2.5 A) and lower DC resistance (53 mOhm vs. 65 mOhm).

Parameter Comparison

Engineering Selection Recommendations

The CIGT201610LMR68MNE is a qualified substitute for the LPWI201208SR68T based on the following criteria:

• Both components meet identical inductance specifications (680 nH ±20%)
• The substitute exceeds the minimum current rating requirement (2.7 A vs. 2.5 A required)
• DC resistance of the substitute (53 mOhm) is lower than the maximum specification (65 mOhm), providing improved performance
• Both components maintain identical operating temperature range (-40°C to 125°C)
• Both components are ROHS3 compliant with MSL 1 rating
• The substitute is classified as Active product status, ensuring long-term availability and supply chain continuity

The package format change from 0805 (2012 Metric) to 0806 (2016 Metric) requires PCB layout verification to confirm footprint compatibility within the available board space.

Frequently Asked Questions (FAQ)

Q: Can the CIGT201610LMR68MNE be used as a direct replacement for the LPWI201208SR68T?

A: The CIGT201610LMR68MNE meets all electrical specifications required for substitution. The package format differs (0806 vs. 0805), requiring verification that the larger footprint (2.00mm x 1.60mm vs. 2.00mm x 1.20mm) accommodates the available PCB space.

Q: What are the key differences between these two inductors?

A: The primary differences are product status (Active vs. Obsolete), package size (0806 vs. 0805), current rating (2.7 A vs. 2.5 A), and DC resistance (53 mOhm vs. 65 mOhm). All critical electrical parameters including inductance value, tolerance, shielding, core material, and operating temperature are identical.

Q: Are both components RoHS compliant?

A: Yes, both the LPWI201208SR68T and CIGT201610LMR68MNE are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: What is the impact of the lower DC resistance in the substitute part?

A: Lower DC resistance (53 mOhm vs. 65 mOhm) reduces power dissipation and heat generation in the inductor, resulting in improved thermal performance and efficiency.

Q: Does the package size change affect circuit performance?

A: The package format change from 0805 to 0806 does not affect electrical performance. PCB layout must be verified to ensure the larger footprint dimensions (2.00mm x 1.60mm) fit within the available board space and trace routing requirements.