LPWI201610HR68T Equivalent & Substitute Parts

Part Overview

The LPWI201610HR68T is a 680 nH shielded thin film inductor manufactured by Littelfuse Inc., rated for 3.7 A continuous current with a maximum DC resistance of 40 mOhm. This component is designed for surface mount applications in the 0806 (2016 Metric) package format. The part is currently listed as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement.

Substiute Parts

LPWI201610HR68T

Littelfuse Inc.In Stock: 1147LPWI201610HR68T Datasheet

Current PartRFQ

CIGW201610GLR68MLE

Samsung Electro-MechanicsIn Stock: 1019CIGW201610GLR68MLE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LPWI201610HR68T is determined by the following critical parameters:

• Inductance Value: Must be 680 nH with ±20% tolerance
• Package Format: Must be 0806 (2016 Metric) surface mount
• Shielding: Must be shielded construction
• Operating Temperature: Must support -40°C ~ 125°C range
• Current Rating: Must meet or exceed 3.7 A continuous current requirement
• DC Resistance: Should not significantly exceed 40 mOhm to maintain circuit performance
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The CIGW201610GLR68MLE from Samsung Electro-Mechanics qualifies as a substitute based on matching inductance, package, shielding, temperature range, and compliance specifications. The substitute offers improved current saturation performance (4.3 A vs. 3.6 A) and lower DC resistance (37 mOhm vs. 40 mOhm), making it functionally compatible for this application.

Parameter Comparison

Engineering Selection Recommendations

The CIGW201610GLR68MLE is suitable as a substitute for the obsolete LPWI201610HR68T based on the following factors:

• Both components maintain identical inductance specifications (680 nH ±20%) and package dimensions (0806 / 2016 Metric)
• The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity
• Both parts maintain ROHS3 compliance and MSL 1 rating, satisfying regulatory and environmental requirements
• The substitute offers equivalent or superior electrical performance: lower DC resistance (37 mOhm vs. 40 mOhm) and higher continuous current rating (4.2 A vs. 3.7 A)
• Operating temperature ranges are identical, supporting the same thermal environment specifications
• Shielded construction is maintained in both components, preserving electromagnetic interference characteristics

Frequently Asked Questions (FAQ)

Q: Can the CIGW201610GLR68MLE be used as a direct replacement for the LPWI201610HR68T?

A: Yes. Both components share identical inductance values, package formats, shielding characteristics, and operating temperature ranges. The substitute meets or exceeds the electrical specifications of the original part.

Q: What is the difference between thin film and drum core wirewound construction?

A: The LPWI201610HR68T uses thin film construction, while the CIGW201610GLR68MLE uses drum core wirewound construction. Both are shielded designs suitable for the 0806 package. The construction difference does not affect substitution eligibility when inductance, current rating, and package specifications match.

Q: Are there any compliance concerns with using the substitute part?

A: No. Both components are ROHS3 compliant with MSL 1 rating. The substitute maintains all required regulatory and environmental certifications.

Q: How do the current ratings compare?

A: The CIGW201610GLR68MLE has a higher continuous current rating (4.2 A) compared to the LPWI201610HR68T (3.7 A). This provides additional design margin. However, note that the saturation current (Isat) of the substitute is lower (3.6 A vs. 4.3 A), which should be evaluated for applications operating near saturation conditions.

Q: Will the substitute part fit the same PCB footprint?

A: Yes. Both components use the 0806 (2016 Metric) package with identical physical dimensions (0.079" L x 0.063" W, 2.00mm x 1.60mm) and maximum seated height (0.039" / 1.00mm). No PCB layout modifications are required.

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

A: The CIGW201610GLR68MLE has a maximum DC resistance of 37 mOhm compared to 40 mOhm in the original part. Lower DC resistance reduces resistive losses and heat generation, providing improved efficiency in the circuit.