LPWI201208SR47T Equivalent & Substitute Parts

Part Overview

The LPWI201208SR47T is a 470 nH shielded thin film inductor manufactured by Littelfuse Inc., designed for surface mount applications in the 0805 (2012 Metric) package. This component is rated for 3.8 A continuous current with a maximum DC resistance of 35 mOhm and operates across the temperature range of -40°C to 125°C. The part maintains Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or design flexibility within the allowed parameter tolerances.

Substiute Parts

LPWI201208SR47T

Littelfuse Inc.In Stock: 3877LPWI201208SR47T Datasheet

Current PartRFQ

LPWI201208HR47T

Littelfuse Inc.In Stock: 3392LPWI201208HR47T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The LPWI201208HR47T qualifies as a parametric equivalent based on the following criteria:

Electrical parameters match across inductance value (470 nH), inductance tolerance (±20%), current rating (3.8 A), and maximum DC resistance (35 mOhm). The saturation current differs (4.7 A versus 4 A), representing an improvement in performance margin without affecting the primary electrical specification. Mechanical parameters are identical: both components use the 0805 (2012 Metric) package with shielded construction, identical physical dimensions (2.00 mm × 1.20 mm length, 1.20 mm width, 0.80 mm maximum seated height), and surface mount mounting type. Environmental and compliance specifications are equivalent: both operate across -40°C to 125°C, maintain RoHS3 compliance, REACH unaffected status, and identical moisture sensitivity level (MSL 1 - Unlimited). Both components are manufactured by Littelfuse Inc. within the LPWI series and maintain Active product status.

Parameter Comparison

Engineering Selection Recommendations

Both the LPWI201208SR47T and LPWI201208HR47T maintain Active product status and are manufactured by Littelfuse Inc. within the same LPWI series. Selection between these components is based on inventory availability and supply chain requirements, as both satisfy identical electrical and mechanical specifications within the defined parameter tolerances. The LPWI201208HR47T offers a higher saturation current rating (4.7 A versus 4 A), providing additional performance margin in applications approaching saturation limits. Both components are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The identical package footprint, thermal operating range, and moisture sensitivity classification ensure direct substitution without design modification or PCB layout changes.

Frequently Asked Questions (FAQ)

Q: Can LPWI201208HR47T replace LPWI201208SR47T in existing designs?

A: Yes. Both components share identical inductance (470 nH ±20%), current rating (3.8 A), DC resistance (35 mOhm max), package (0805 / 2012 Metric), and operating temperature range (-40°C to 125°C). The physical footprint and mounting requirements are equivalent, requiring no PCB layout modifications.

Q: What is the difference between these two part numbers?

A: The primary difference is the saturation current specification. LPWI201208SR47T has Isat of 4 A, while LPWI201208HR47T has Isat of 4.7 A. Both meet the 3.8 A continuous current rating. All other electrical, mechanical, and compliance parameters are identical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both LPWI201208SR47T and LPWI201208HR47T are RoHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What is the moisture sensitivity level for these inductors?

A: Both components have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both components use the 0805 (2012 Metric) surface mount package with identical physical dimensions (2.00 mm × 1.20 mm × 0.80 mm max height), allowing direct substitution without PCB redesign.