474R7SC Equivalent & Substitute Parts Reference

Part Overview

The Murata Power Solutions 474R7SC is a 4.7 µH shielded wirewound inductor rated for 5.8 A continuous current with a maximum DC resistance of 16.4 mOhm. This surface mount component operates across -40°C to 85°C and is designed for nonstandard 4-lead packaging. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring compatible electrical and mechanical characteristics.

Substiute Parts

474R7SC

Murata Power Solutions Inc.In Stock: 858474R7SC Datasheet

Current PartRFQ

7447715004

Würth ElektronikIn Stock: 117877447715004 Datasheet

MFR RecommendedRFQ

BPSC001313454R7M00

Pulse ElectronicsIn Stock: 1016BPSC001313454R7M00 Datasheet

MFR RecommendedRFQ

BPSC001313454R7T00

Pulse ElectronicsIn Stock: 794BPSC001313454R7T00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 474R7SC is determined by the following critical parameters:

• Inductance Value: Must be 4.7 µH with tolerance range compatible to ±30%
• Current Rating: Minimum 5.2 A continuous current capability
• DC Resistance: Maximum 18 mOhm (allowing slight increase from original 16.4 mOhm specification)
• Shielding: Must be shielded construction
• Mounting: Surface mount, nonstandard package
• Environmental Compliance: RoHS3 compliant, MSL 1 rating

The three qualified substitutes meet these core electrical parameters while maintaining shielded construction and surface mount compatibility. All substitutes are active products with current manufacturing status, addressing the obsolescence of the original part.

Parameter Comparison

Engineering Selection Recommendations

7447715004 (Würth Elektronik WE-PD Series)

This substitute provides the closest electrical match with 16 mOhm DCR and maintains the ±30% inductance tolerance. The 5.2 A current rating is slightly lower than the original 5.8 A specification but remains within acceptable operating margins for most applications. The part carries AEC-Q200 automotive qualification and ROHS3 compliance. Extended temperature range to 125°C provides additional operational headroom. Footprint dimensions are slightly smaller (12.00 x 12.00 mm vs. 12.20 x 12.20 mm), requiring PCB layout verification.

BPSC001313454R7M00 (Pulse Electronics BPSC Series)

This substitute features tighter inductance tolerance (±20%) and higher saturation current (7.9 A), offering improved performance margin. DCR is 18 mOhm, representing a 1.6 mOhm increase from the original specification. Extended temperature range to 125°C and ROHS3 compliance are provided. Footprint is slightly larger (12.50 x 12.50 mm), requiring PCB layout verification. This option is suitable for applications where tighter inductance tolerance is beneficial.

BPSC001313454R7T00 (Pulse Electronics BPSC Series)

Electrically identical to BPSC001313454R7M00 with 18 mOhm DCR and ±30% inductance tolerance. Maintains 7.9 A saturation current and extended temperature range to 125°C. ROHS3 compliant with MSL 1 rating. Footprint dimensions match BPSC001313454R7M00 (12.50 x 12.50 mm). Selection between the two Pulse variants depends on inductance tolerance requirements for the specific application.

Frequently Asked Questions (FAQ)

Q: Can the 474R7SC be directly replaced with any of these substitutes?

A: Direct replacement requires PCB layout verification due to footprint variations. The 474R7SC measures 12.20 x 12.20 mm with 5.00 mm height. The Würth 7447715004 is slightly smaller (12.00 x 12.00 mm, 4.50 mm height), while both Pulse variants are larger (12.50 x 12.50 mm, 4.50 mm height). Mechanical clearance and thermal considerations must be evaluated for each application.

Q: What is the impact of the lower current rating on the Würth substitute?

A: The Würth 7447715004 is rated for 5.2 A continuous current versus the original 5.8 A. For applications operating below 5.2 A, this substitute is fully compatible. Applications requiring the full 5.8 A rating should use the Pulse Electronics variants, which do not specify a continuous current limit but provide 7.9 A saturation current.

Q: Are there temperature range differences that affect compatibility?

A: The original 474R7SC operates from -40°C to 85°C. All three substitutes extend the upper limit to 125°C, providing additional thermal margin. This extended range is compatible with the original specification and does not create compatibility issues.

Q: How do the DC resistance values compare?

A: The original 474R7SC specifies 16.4 mOhm maximum DCR. The Würth substitute matches this closely at 16 mOhm. Both Pulse variants specify 18 mOhm, representing a 1.6 mOhm increase. For power loss calculations, this difference is approximately 10% higher dissipation at rated current. Applications sensitive to thermal performance should account for this variance.

Q: What compliance certifications are provided?

A: The original part is RoHS compliant. All substitutes are ROHS3 compliant, representing an updated regulatory standard. The Würth substitute carries AEC-Q200 automotive qualification. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements.

Q: Do the inductance tolerance differences matter?

A: The original 474R7SC and most substitutes specify ±30% tolerance. The BPSC001313454R7M00 offers tighter ±20% tolerance. For applications where inductance accuracy is critical, the Pulse M-variant provides improved tolerance. For general applications, the ±30% tolerance is standard and acceptable.