47680SC Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 47680SC is a 68 µH shielded wirewound inductor rated for 1.6 A with a maximum DC resistance of 210mOhm. This component is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The part operates across the industrial temperature range of -40°C to 85°C and is RoHS compliant with unlimited moisture sensitivity rating.

Substiute Parts

47680SC

Murata Power Solutions Inc.In Stock: 72447680SC Datasheet

Current PartRFQ

744771168

Würth ElektronikIn Stock: 2196744771168 Datasheet

MFR RecommendedRFQ

BPSC00131345680M00

Pulse ElectronicsIn Stock: 1028BPSC00131345680M00 Datasheet

MFR RecommendedRFQ

BPSC00131345680T00

Pulse ElectronicsIn Stock: 758BPSC00131345680T00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 47680SC is determined by the following critical parameters:

• Inductance value: 68 µH (exact match required)
• Inductance tolerance: ±20% or tighter
• Current rating: minimum 1.6 A
• DC resistance: 210mOhm or lower
• Shielding: shielded construction required
• Mounting: surface mount only
• Operating temperature: minimum -40°C to 85°C coverage
• RoHS compliance: required

The three qualified substitutes meet these core electrical and mechanical requirements while offering improvements in current handling capability, reduced DC resistance, or extended temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are active products with current manufacturing support, addressing the obsolescence of the 47680SC.

The Würth Elektronik 744771168 offers the lowest DC resistance at 120mOhm Max and the highest current rating at 1.91 A, with saturation current of 2.19 A. This part provides the best electrical performance margin and extended temperature operation to 125°C. The drum core, ferrite construction with AEC-Q200 rating supports automotive and high-reliability applications.

The Pulse Electronics BPSC00131345680M00 and BPSC00131345680T00 are functionally equivalent with 220mOhm Max DC resistance and 1.5 A saturation current. Both extend operating temperature to 125°C and maintain RoHS3 compliance. The primary difference is inductance tolerance: BPSC00131345680M00 specifies ±20%, while BPSC00131345680T00 specifies ±30%. For applications requiring tighter inductance control, the M00 variant is preferred.

Physical dimensions vary slightly across substitutes. The Würth part maintains the closest footprint to the original (12.00 x 12.00 mm versus 12.20 x 12.20 mm), while Pulse parts are slightly larger at 12.50 x 12.50 mm. Height differences range from 4.50 mm to 6.00 mm, requiring PCB layout verification for space-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can the 47680SC be directly replaced with any of these substitutes?

A: All three substitutes meet the core electrical requirements: 68 µH inductance, shielded construction, surface mount packaging, and RoHS compliance. However, physical dimensions and height vary. PCB layout must accommodate the specific substitute's footprint and height before implementation.

Q: Which substitute offers the best performance improvement?

A: The Würth Elektronik 744771168 provides superior electrical performance with 120mOhm Max DCR (versus 210mOhm original) and higher current rating of 1.91 A. It also includes AEC-Q200 rating for automotive applications and extended temperature range to 125°C.

Q: Are there tolerance differences between substitutes?

A: Yes. The Würth 744771168 and Pulse BPSC00131345680M00 both specify ±20% inductance tolerance, matching the original. The Pulse BPSC00131345680T00 specifies ±30% tolerance, which may be unsuitable for applications requiring tighter inductance control.

Q: What is the saturation current consideration?

A: The Würth part specifies 2.19 A saturation current, providing margin above the 1.6 A rating. Pulse parts specify 1.5 A saturation current, which is below the original 1.6 A rating. For applications operating near maximum current, the Würth substitute is preferred.

Q: Do all substitutes support the same temperature range?

A: The original 47680SC operates -40°C to 85°C. All three substitutes extend this to -40°C to 125°C, providing additional thermal margin for high-temperature environments.

Q: Are there packaging or supply chain differences?

A: All substitutes are supplied in Tape & Reel (TR) packaging. The Würth part is available with 2095 pieces in stock, while Pulse variants offer 965 and 675 pieces respectively, providing multiple sourcing options.