24S330C Equivalent & Substitute Parts

Part Overview

The 24S330C is a 33 µH shielded wirewound inductor manufactured by Murata Power Solutions Inc., rated for 900 mA continuous current with a maximum DC resistance of 190mOhm. 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 maintains active product status and is ROHS3 compliant, making it suitable for modern electronic assemblies requiring regulated inductance values in compact form factors.

Alternative components become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit operation within broader electrical specifications. The substitute part identified maintains the core inductance value while offering enhanced current handling capability and extended temperature range.

Substiute Parts

24S330C

Murata Power Solutions Inc.In Stock: 146924S330C Datasheet

Current PartRFQ

SRR7045-330M

Bourns Inc.In Stock: 2398SRR7045-330M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SRR7045-330M from Bourns Inc. qualifies as a direct substitute based on the following critical parameters:

Matching Specifications:

• Inductance value: 33 µH (identical)
• Shielding: Shielded (identical)
• Mounting type: Surface Mount (identical)
• Package format: Nonstandard (identical)
• RoHS3 compliance: Yes (identical)
• Moisture sensitivity level: 1 (identical)

Enhanced Capabilities:

• Current rating: 1.6 A (exceeds 900 mA requirement)
• DC resistance: 115mOhm Max (lower than 190mOhm specification)
• Operating temperature: -40°C to 125°C (extended upper limit)

The substitute maintains electrical and mechanical compatibility while providing superior performance margins in current handling and thermal operation.

Parameter Comparison

Engineering Selection Recommendations

Both the 24S330C and SRR7045-330M maintain active product status and full ROHS3 compliance with unlimited moisture sensitivity ratings. The SRR7045-330M presents a viable substitution path with measurable advantages: the increased current rating of 1.6 A provides 78% additional headroom over the 900 mA specification, while the reduced DC resistance of 115mOhm minimizes power dissipation compared to the 190mOhm maximum of the primary part. The extended operating temperature range to 125°C accommodates applications requiring higher thermal margins.

Selection between these components should be based on supply availability, cost considerations, and whether the enhanced electrical performance of the substitute aligns with system requirements. Both components satisfy the core functional requirements for 33 µH shielded surface mount inductance in nonstandard packaging.

Frequently Asked Questions (FAQ)

Q: Can the SRR7045-330M directly replace the 24S330C in existing designs?

A: Yes. Both components share identical inductance values, shielding characteristics, surface mount configuration, and nonstandard package format. The substitute offers equal or superior performance across all specified electrical parameters.

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

A: The 24S330C measures 0.303" L × 0.280" W × 0.177" H (7.70mm × 7.10mm × 4.50mm). The SRR7045-330M measures 0.276" L × 0.276" W × 0.189" H (7.00mm × 7.00mm × 4.80mm). Both fit the nonstandard package category; verify PCB layout compatibility before substitution.

Q: Does the lower DC resistance of the substitute part affect circuit performance?

A: Lower DC resistance reduces resistive losses and heat generation. This represents an improvement over the original specification and does not negatively impact circuit function.

Q: Are both parts suitable for high-temperature applications?

A: The 24S330C operates to 85°C maximum. The SRR7045-330M extends to 125°C, making it preferable for applications requiring elevated thermal operation.

Q: What is the significance of the different inductance test frequencies?

A: The 24S330C uses 1 kHz test frequency while the SRR7045-330M uses 100 kHz. Both measurements characterize the same 33 µH inductance value under their respective standard test conditions. This difference does not affect substitution compatibility.

Q: Do both parts carry equivalent regulatory certifications?

A: Yes. Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding (8504.50.4000).