0520CDMCDS-R68MC Equivalent & Substitute Parts

Part Overview

The 0520CDMCDS-R68MC is a 680 nH shielded wirewound inductor manufactured by Sumida America Components Inc., rated for 6.6 A continuous current with 13 mOhm DC resistance. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The part operates across the temperature range of -40°C to 105°C and is RoHS3 compliant with MSL 1 rating.

Substiute Parts

0520CDMCDS-R68MC

Sumida America Components Inc.In Stock: 9660520CDMCDS-R68MC Datasheet

Current PartRFQ

MGV0503R68M-10

Laird-Signal Integrity ProductsIn Stock: 1183MGV0503R68M-10 Datasheet

SimilarRFQ

SRP5030T-R68M

Bourns Inc.In Stock: 4661SRP5030T-R68M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0520CDMCDS-R68MC is determined by the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 680 nH
• Inductance tolerance: ±20%
• Shielding: Shielded configuration
• Mounting type: Surface Mount
• Test frequency: 100 kHz
• RoHS3 compliance

Allowable Variation Parameters:

• Current rating: Substitute must equal or exceed 6.6 A
• Saturation current: Substitute must equal or exceed 10 A
• DC resistance: Substitute should be comparable (lower DCR is acceptable)
• Operating temperature: Substitute must support minimum -40°C to 105°C range
• Package dimensions: Minor variations acceptable within nonstandard category
• Product status: Active status preferred for long-term availability

The two substitute parts listed (MGV0503R68M-10 and SRP5030T-R68M) meet all mandatory parameters and exceed performance specifications in current handling and saturation ratings.

Parameter Comparison

Engineering Selection Recommendations

MGV0503R68M-10 (Laird-Signal Integrity Products):

This substitute provides superior electrical performance with 10.2 A current rating and 13.5 A saturation current, both exceeding the original specification. DC resistance is reduced to 8.96 mOhm maximum, improving efficiency. The molded construction offers enhanced environmental protection. Operating temperature extends to 125°C, providing additional thermal margin. Active product status ensures long-term availability and supply chain stability. Height increase to 3.30mm requires PCB layout verification for clearance compatibility.

SRP5030T-R68M (Bourns Inc.):

This substitute maintains closer dimensional compatibility with 5.70mm length and 3.00mm height, minimizing PCB redesign requirements. Current rating of 8.5 A and saturation current of 14 A both exceed original specifications. DC resistance at 12 mOhm maximum is comparable to the original 13 mOhm specification. Drum core wirewound construction with iron powder core provides performance characteristics similar to the original design. Active product status and extended temperature range to 125°C support long-term deployment. Tape & Reel packaging offers standard supply chain compatibility.

Both substitutes are RoHS3 compliant and support the original operating temperature minimum of -40°C. Selection between these options depends on specific PCB layout constraints and packaging requirements.

Frequently Asked Questions (FAQ)

Q: Can MGV0503R68M-10 be used as a direct replacement for 0520CDMCDS-R68MC?

A: MGV0503R68M-10 meets all electrical specifications and exceeds current and saturation ratings. The primary consideration is the increased height of 3.30mm versus 2.00mm on the original part. PCB layout must accommodate this dimensional change. All electrical parameters are compatible.

Q: What is the significance of the lower DC resistance in MGV0503R68M-10?

A: The 8.96 mOhm maximum DCR in MGV0503R68M-10 compared to 13 mOhm in the original part results in reduced power dissipation and improved thermal performance. This is a beneficial characteristic for circuit operation and does not create compatibility issues.

Q: Why does SRP5030T-R68M have a different core material than the original?

A: SRP5030T-R68M uses an iron powder core in a drum core wirewound configuration, while 0520CDMCDS-R68MC uses a standard wirewound design. Both achieve the same 680 nH inductance value with ±20% tolerance at 100 kHz test frequency. The core material difference does not affect substitution compatibility when electrical specifications match.

Q: Are there packaging differences between these parts?

A: 0520CDMCDS-R68MC uses standard SMD packaging. MGV0503R68M-10 is supplied in Cut Tape (CT) format, while SRP5030T-R68M is supplied in Tape & Reel (TR) format. These are supply chain packaging variations and do not affect component functionality or PCB mounting.

Q: What is the impact of the extended operating temperature range in the substitutes?

A: Both MGV0503R68M-10 and SRP5030T-R68M support -40°C to 125°C operation, compared to -40°C to 105°C for the original part. This extended range provides additional thermal margin and is fully backward compatible with applications designed for the original temperature specification.

Q: How do the saturation current ratings affect circuit design?

A: The original 0520CDMCDS-R68MC has 10 A saturation current. MGV0503R68M-10 provides 13.5 A and SRP5030T-R68M provides 14 A saturation current. Higher saturation ratings provide greater design margin and reduce the risk of inductor saturation under transient current conditions. Both substitutes are superior in this parameter.

Q: Is MSL rating a consideration for these substitutes?

A: 0520CDMCDS-R68MC and SRP5030T-R68M both have MSL 1 (Unlimited) rating, indicating no moisture sensitivity concerns. MGV0503R68M-10 has Not Applicable MSL status, which is also acceptable. All three parts are suitable for standard PCB assembly processes without special moisture control requirements.