24S3R3C Equivalent & Substitute Parts

Part Overview

The 24S3R3C is a 3.3 µH shielded wirewound inductor manufactured by Murata Power Solutions Inc., rated for 2.8 A continuous current with a maximum DC resistance of 32mOhm. This component is designed for surface mount applications in the nonstandard package format and operates across the industrial temperature range of -40°C to 85°C. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified when design requirements permit tolerance in current rating, DC resistance, or operating temperature specifications while maintaining the core 3.3 µH inductance value and shielded construction.

Substiute Parts

24S3R3C

Murata Power Solutions Inc.In Stock: 84324S3R3C Datasheet

Current PartRFQ

SRR7045-3R3M

Bourns Inc.In Stock: 2448SRR7045-3R3M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 24S3R3C is permissible when the following conditions are met:

The substitute part must maintain the 3.3 µH inductance specification as the primary functional requirement. The shielded construction is mandatory for electromagnetic compatibility in the target application. Surface mount packaging and nonstandard case dimensions are fixed constraints.

Allowable parameter variations for substitution include:

Current rating may exceed the 2.8 A specification of the main part, as higher current capacity provides design margin. DC resistance up to 32mOhm is acceptable; lower values are preferred but not required. Operating temperature range may extend beyond -40°C to 85°C, provided the minimum and maximum limits encompass the application requirements. RoHS3 compliance and MSL 1 rating are mandatory for supply chain and manufacturing compatibility.

Parameter Comparison

Engineering Selection Recommendations

The SRR7045-3R3M from Bourns Inc. is qualified as a direct substitute for the 24S3R3C. Both parts maintain active production status with full RoHS3 compliance and MSL 1 rating, ensuring supply chain continuity and manufacturing compatibility.

The SRR7045-3R3M provides performance advantages over the main part: the current rating of 4.6 A exceeds the 2.8 A specification, and the DC resistance of 27mOhm is lower than the 32mOhm maximum of the 24S3R3C. The extended operating temperature range of -40°C to 125°C provides additional thermal margin compared to the 85°C upper limit of the 24S3R3C.

Selection between these parts should be based on availability, lead time, and cost considerations. Both parts are suitable for applications requiring 3.3 µH shielded surface mount inductors within the specified electrical and thermal parameters.

Frequently Asked Questions (FAQ)

Q: Can the SRR7045-3R3M replace the 24S3R3C in all applications?

A: Yes, provided the application operates within the overlapping specifications. Both parts deliver 3.3 µH inductance with shielded construction and surface mount packaging. The SRR7045-3R3M supports higher current (4.6 A vs. 2.8 A) and lower DC resistance (27mOhm vs. 32mOhm), making it suitable for designs rated up to 2.8 A. The extended temperature range of the SRR7045-3R3M (-40°C to 125°C) accommodates applications limited to -40°C to 85°C.

Q: What are the physical dimension differences between these parts?

A: The 24S3R3C measures 0.303" L x 0.280" W x 0.177" H (7.70mm x 7.10mm x 4.50mm). The SRR7045-3R3M measures 0.276" L x 0.276" W x 0.189" H (7.00mm x 7.00mm x 4.80mm). Both use nonstandard package formats. PCB layout and clearance requirements should be verified for the specific application.

Q: Are both parts available in the same packaging format?

A: Yes. Both the 24S3R3C and SRR7045-3R3M are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Both are classified under ECCN EAR99 and HTSUS 8504.50.4000.