LPWI201610SR47T Equivalent & Substitute Parts

Part Overview

The LPWI201610SR47T is a 470 nH shielded thin film inductor manufactured by Littelfuse Inc., rated for 3.8 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 obsolete, making identification of compatible substitute components essential for ongoing production and maintenance applications.

Substiute Parts

LPWI201610SR47T

Littelfuse Inc.In Stock: 908LPWI201610SR47T Datasheet

Current PartRFQ

TFM201610GHM-R47MTAA

TDK CorporationIn Stock: 20331TFM201610GHM-R47MTAA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LPWI201610SR47T is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 470 nH with ±20% tolerance
• Package format: 0806 (2016 Metric) surface mount
• Shielding type: Shielded construction
• Operating temperature range: -40°C ~ 125°C minimum
• RoHS3 compliance requirement

Allowable Variation Parameters:

• Current rating: Substitute must meet or exceed 3.8 A
• DC resistance: Substitute must not exceed 40 mOhm
• Saturation current: Substitute must meet or exceed 4 A

The TFM201610GHM-R47MTAA from TDK Corporation meets all critical matching parameters and exceeds allowable variation thresholds, qualifying it as a direct substitute for the LPWI201610SR47T.

Parameter Comparison

Engineering Selection Recommendations

The TFM201610GHM-R47MTAA is a qualified substitute for the LPWI201610SR47T based on the following engineering criteria:

Compliance & Certification: Both components maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental compatibility in production environments.

Product Availability: The substitute part maintains active product status with substantial inventory availability (20,300 pcs), whereas the original part is obsolete. This transition is necessary for supply chain continuity.

Electrical Performance: The TDK substitute exceeds the original specifications in current rating (3.9 A vs. 3.8 A) and saturation current (4.7 A vs. 4 A), while maintaining DC resistance within acceptable tolerance (41 mOhm vs. 40 mOhm maximum).

Physical & Thermal Compatibility: Identical package dimensions, height, and operating temperature range ensure direct PCB compatibility without layout or thermal management modifications.

Frequently Asked Questions (FAQ)

Q: Can the TFM201610GHM-R47MTAA be used as a direct replacement for the LPWI201610SR47T without PCB modifications?

A: Yes. Both components share identical package format (0806/2016 Metric), dimensions (2.00mm x 1.60mm), and height (1.00mm maximum). No PCB layout changes are required.

Q: What is the significance of the higher current rating in the substitute part?

A: The TFM201610GHM-R47MTAA is rated for 3.9 A versus the original 3.8 A. This represents improved performance headroom and does not create compatibility issues in circuits designed for the original part.

Q: Are there any differences in DC resistance that would affect circuit performance?

A: The substitute part has a maximum DC resistance of 41 mOhm compared to 40 mOhm in the original. This 1 mOhm difference is within normal manufacturing tolerance and will not produce measurable performance variation in typical applications.

Q: Does the substitute part meet the same environmental and regulatory requirements?

A: Yes. Both components are ROHS3 compliant with MSL rating of 1 (Unlimited), ensuring identical handling, storage, and environmental compliance requirements.

Q: Why is the original part listed as obsolete?

A: The LPWI201610SR47T has been discontinued by Littelfuse Inc. The TFM201610GHM-R47MTAA from TDK Corporation is the recommended active alternative for new designs and ongoing production requirements.