48471SC Equivalent & Substitute Parts Reference

Part Overview

The Murata Power Solutions 48471SC is a 470 µH shielded wirewound inductor rated for 760 mA continuous current with a maximum DC resistance of 900mOhm. This surface mount component operates across the -40°C to 85°C temperature range and is designed for applications requiring compact, shielded inductive filtering in power conversion and signal conditioning circuits. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when inventory constraints exist, when alternative thermal or current performance characteristics better suit application requirements, or when package availability differs across supply channels.

Substiute Parts

48471SC

Murata Power SolutionsIn Stock: 69448471SC Datasheet

Current PartRFQ

SRR1260-471K

Bourns Inc.In Stock: 3930SRR1260-471K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns Inc. SRR1260-471K qualifies as a direct substitute based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Inductance value: 470 µH (identical)
• Shielding classification: Shielded (identical)
• Mounting type: Surface Mount (identical)
• RoHS3 compliance: Both parts meet ROHS3 Compliant status
• Moisture sensitivity level: Both rated MSL 1 (Unlimited)
• REACH status: Both REACH Unaffected
• ECCN classification: Both EAR99

Allowable Variations:

• Current rating: SRR1260-471K rated 950 mA exceeds the 48471SC requirement of 760 mA, providing margin
• DC resistance: SRR1260-471K maximum 820mOhm is lower than 48471SC maximum 900mOhm, reducing losses
• Operating temperature: SRR1260-471K extends to 125°C versus 48471SC at 85°C maximum
• Inductance tolerance: SRR1260-471K ±10% is tighter than 48471SC ±20%
• Package dimensions: Both nonstandard surface mount packages with similar footprints (12.20mm vs 12.50mm)

Parameter Comparison

Engineering Selection Recommendations

Both the 48471SC and SRR1260-471K are active production parts with full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications.

The SRR1260-471K presents performance advantages in applications where thermal headroom or current margin is beneficial: the 950 mA rating provides 25% additional capacity over the 48471SC specification, and the 820mOhm maximum DC resistance reduces conduction losses compared to the 900mOhm specification. The extended operating temperature range to 125°C accommodates higher ambient or self-heating conditions.

Selection between these parts should be based on circuit requirements for current capacity, thermal environment, and tolerance specifications. The 48471SC remains the primary choice when the original design specification and package format are required. The SRR1260-471K serves as a functional equivalent when higher performance margins or extended temperature operation are acceptable within the application design.

Frequently Asked Questions (FAQ)

Q: Can the SRR1260-471K directly replace the 48471SC in existing designs?

A: The SRR1260-471K meets all critical electrical specifications for 470 µH shielded surface mount inductive filtering. Both parts share identical inductance values, shielding classification, and mounting type. The substitute part offers equal or superior performance in current rating, DC resistance, and temperature range. Physical package dimensions differ slightly (12.50mm vs 12.20mm), requiring verification of PCB layout clearances.

Q: What are the key differences in electrical performance?

A: The SRR1260-471K provides higher current capacity (950 mA vs 760 mA), lower DC resistance (820mOhm max vs 900mOhm max), and tighter inductance tolerance (±10% vs ±20%). The self-resonant frequency differs (2.6 MHz vs 4 MHz), which may affect high-frequency filtering characteristics. Q factor values are comparable at their respective test frequencies.

Q: Are both parts suitable for the same operating temperature range?

A: The 48471SC operates from -40°C to 85°C. The SRR1260-471K extends this range to -40°C to 125°C. Applications limited to the 48471SC temperature specification can use either part. Applications requiring operation above 85°C require the SRR1260-471K.

Q: What packaging formats are available?

A: The 48471SC is supplied in Tape & Reel (TR) format. The SRR1260-471K is available in Cut Tape (CT) and Digi-Reel® formats. Verify packaging compatibility with assembly equipment and procurement workflows before substitution.

Q: Do both parts meet current compliance standards?

A: Both the 48471SC and SRR1260-471K are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Both carry MSL 1 (Unlimited) moisture sensitivity ratings, eliminating bake-out requirements for storage and handling.