Murata Power Solutions 82683C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 82683C is a 68 µH unshielded wirewound inductor rated for 200 mA with a maximum DC resistance of 2.55Ohm in a 1210 (3225 Metric) surface mount package. This component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified when design requirements permit tolerance of variations in electrical performance characteristics, physical dimensions, or thermal operating ranges while maintaining core functional specifications.

Substiute Parts

82683C

Murata Power Solutions Inc.In Stock: 119882683C Datasheet

Current PartRFQ

SDR0302-680KL

Bourns Inc.In Stock: 2692SDR0302-680KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Murata 82683C with the Bourns SDR0302-680KL is permissible based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Inductance value: 68 µH (both parts)
• Inductance tolerance: ±10% (both parts)
• Shielding configuration: Unshielded (both parts)
• Mounting type: Surface Mount (both parts)
• RoHS compliance: ROHS3 Compliant (both parts)
• Moisture sensitivity: MSL 1 (Unlimited) (both parts)

Allowable Variations:

• Current rating: 200 mA (82683C) vs. 300 mA (SDR0302-680KL) — higher rating in substitute provides margin
• DC resistance: 2.55Ohm Max (82683C) vs. 1.85Ohm Max (SDR0302-680KL) — lower resistance in substitute improves performance
• Operating temperature: -40°C ~ 85°C (82683C) vs. -40°C ~ 125°C (SDR0302-680KL) — extended range in substitute
• Package dimensions: Nonstandard (SDR0302-680KL) vs. 1210 standard (82683C) — physical footprint differs

Parameter Comparison

Engineering Selection Recommendations

Selection between the Murata 82683C and Bourns SDR0302-680KL is determined by application-specific constraints:

Use Murata 82683C when:

• PCB layout requires standard 1210 (3225 Metric) package footprint
• Design is locked to the original component specification
• Thermal environment does not exceed 85°C

Use Bourns SDR0302-680KL when:

• Nonstandard package dimensions are acceptable within PCB layout
• Lower DC resistance (1.85Ohm vs. 2.55Ohm) reduces power dissipation
• Higher current rating (300 mA vs. 200 mA) provides design margin
• Operating environment extends to 125°C
• ROHS3 compliance and MSL 1 rating are required

Both parts maintain Active product status and full regulatory compliance (ROHS3, REACH Unaffected, EAR99 classification).

Frequently Asked Questions (FAQ)

Q: Can the Bourns SDR0302-680KL be used as a direct replacement for the Murata 82683C?

A: Electrical substitution is valid based on matching inductance (68 µH), tolerance (±10%), shielding (unshielded), and compliance certifications. Physical substitution requires PCB layout verification due to nonstandard package dimensions of the Bourns part versus the standard 1210 footprint of the Murata part.

Q: What is the significance of the lower DC resistance in the Bourns part?

A: The Bourns SDR0302-680KL exhibits 1.85Ohm maximum DC resistance compared to 2.55Ohm in the Murata 82683C. Lower resistance reduces I²R power dissipation and heat generation in the inductor, improving thermal performance in current-limited applications.

Q: Are there package compatibility concerns?

A: Yes. The Murata 82683C uses a standard 1210 (3225 Metric) package with defined dimensions (0.126" L x 0.098" W, 0.091" height). The Bourns SDR0302-680KL is classified as nonstandard with different dimensions (0.118" L x 0.110" W, 0.110" height). PCB footprint and clearance verification is required before substitution.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the Murata 82683C and Bourns SDR0302-680KL are ROHS3 compliant, REACH unaffected, classified as EAR99, and carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the current rating difference and why does it matter?

A: The Murata 82683C is rated for 200 mA, while the Bourns SDR0302-680KL is rated for 300 mA. The higher rating in the Bourns part provides additional design margin and reduces the risk of saturation in applications approaching the 200 mA limit.