Murata Power Solutions 82682C 6.8µH Surface Mount Inductor

Part Overview

The Murata Power Solutions 82682C is a 6.8 µH unshielded wirewound inductor rated for 640 mA continuous current with a maximum DC resistance of 270mOhm. This component is designed for surface mount applications in the 1210 (3225 Metric) package format. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when original inventory is unavailable or when design requirements permit alternative electrical and mechanical characteristics within specified tolerances.

Substiute Parts

82682C

Murata Power SolutionsIn Stock: 78082682C Datasheet

Current PartRFQ

SDR0302-6R8ML

Bourns Inc.In Stock: 6525SDR0302-6R8ML Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Murata 82682C is permissible when the alternative component meets the following criteria:

Critical Parameters for Substitution:

• Inductance value: 6.8 µH (within ±20% tolerance)
• Inductance tolerance: ±20% or tighter
• Current rating: minimum 640 mA
• DC resistance: 270mOhm or lower
• Shielding configuration: Unshielded
• Mounting type: Surface Mount
• Operating temperature range: must encompass -40°C to 85°C minimum
• RoHS3 compliance required
• Moisture sensitivity level: 1 (Unlimited) or equivalent

The Bourns SDR0302-6R8ML satisfies all substitution criteria. While the package designation differs (Nonstandard vs. 1210 Metric), the physical dimensions remain compatible with standard 1210 footprints. The substitute part exceeds the current rating requirement (1 A vs. 640 mA) and provides superior DC resistance performance (180mOhm vs. 270mOhm), making it functionally equivalent for this application.

Parameter Comparison

Engineering Selection Recommendations

The Bourns SDR0302-6R8ML is an approved substitute for the Murata 82682C based on the following engineering criteria:

Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with standard manufacturing and storage protocols. The substitute part's extended operating temperature range (-40°C to 125°C versus -40°C to 85°C) provides additional thermal margin without introducing incompatibility.

The substitute component's superior electrical performance—higher current rating (1 A vs. 640 mA) and lower DC resistance (180mOhm vs. 270mOhm)—ensures functional equivalence or improvement in the target application. Physical dimensions remain within acceptable tolerances for standard 1210 footprint PCB layouts, with the substitute measuring slightly taller (2.80mm vs. 2.30mm seated height).

Selection between these components should be based on availability and specific application thermal requirements. Both parts are active production items with established supply chains.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SDR0302-6R8ML be used as a direct replacement for the Murata 82682C?

A: Yes. Both components share identical inductance values (6.8 µH), tolerance specifications (±20%), and shielding configuration (unshielded). The substitute meets or exceeds all electrical requirements and maintains equivalent compliance certifications.

Q: What are the physical footprint differences?

A: The Murata 82682C measures 3.20mm L × 2.50mm W with 2.30mm maximum seated height. The Bourns substitute measures 3.00mm L × 2.80mm W with 2.80mm maximum seated height. Both components are compatible with standard 1210 PCB footprints, though the substitute is slightly taller and may require clearance verification in space-constrained applications.

Q: Does the substitute part provide any performance advantages?

A: The Bourns SDR0302-6R8ML offers lower DC resistance (180mOhm vs. 270mOhm) and higher current rating (1 A vs. 640 mA), resulting in reduced power dissipation and improved thermal performance. The extended operating temperature range (-40°C to 125°C) provides additional design margin.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the Murata 82682C and Bourns SDR0302-6R8ML are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), meeting standard manufacturing and environmental requirements.

Q: What is the inductance tolerance for both parts?

A: Both components specify ±20% inductance tolerance, measured at their respective test frequencies (10 kHz for Murata, 1 kHz for Bourns). This tolerance range ensures functional equivalence in circuit applications.