CDR125-180MC Equivalent & Substitute Parts

Part Overview

The CDR125-180MC is a 18 µH shielded surface mount inductor manufactured by Sumida America Components Inc., rated for 2.4 A continuous current with a maximum DC resistance of 60 mOhm. This component is classified as obsolete product status. Due to its obsolete designation, locating direct inventory from original manufacturing channels may present supply chain challenges. Identifying qualified substitute components with matching electrical and mechanical specifications is essential for design continuity and production planning.

Substiute Parts

CDR125-180MC

Sumida America Components Inc.In Stock: 1114CDR125-180MC Datasheet

Current PartRFQ

CDR125NP-180MC

Sumida America Components Inc.In Stock: 1131CDR125NP-180MC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDR125-180MC is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Inductance value: 18 µH
• Inductance tolerance: ±20%
• Current rating: 2.4 A minimum
• DC resistance: 60 mOhm maximum
• Shielding type: Shielded construction
• Self-resonant frequency: 16.1 MHz
• Test frequency: 2.52 MHz

Mechanical Equivalence Criteria:

• Mounting type: Surface Mount
• Package classification: Nonstandard
• Physical dimensions: 0.496" L x 0.457" W (12.60 mm x 11.60 mm)
• Maximum seated height: 0.232" (5.90 mm)

Compliance Considerations:

• Moisture sensitivity level: MSL 1 (Unlimited)
• ECCN classification: EAR99
• HTSUS code: 8504.50.4000

The substitute part CDR125NP-180MC meets all electrical and mechanical equivalence criteria while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The CDR125NP-180MC is a direct electrical and mechanical equivalent to the CDR125-180MC. Both components are manufactured by Sumida America Components Inc. within the CDR125 series and share identical inductance, current rating, DC resistance, shielding characteristics, and physical dimensions.

Product Status Consideration: The CDR125-180MC is designated as obsolete, while the CDR125NP-180MC maintains active product status. Active status indicates ongoing manufacturer support, availability through distribution channels, and continued compliance with current regulatory standards.

Compliance Advantage: The CDR125NP-180MC is ROHS3 compliant, whereas the CDR125-180MC is RoHS non-compliant. This distinction is significant for applications subject to RoHS regulations and for long-term supply chain sustainability.

Operating Temperature Range: The CDR125NP-180MC operates across -40°C to 100°C, which encompasses and exceeds the -25°C to 70°C range of the CDR125-180MC. This extended range provides additional operational margin for temperature-sensitive applications.

Packaging Format: The CDR125-180MC is supplied in bulk packaging, while the CDR125NP-180MC is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly processes and provides improved component protection during handling and storage.

For new designs or production transitions, the CDR125NP-180MC is the appropriate selection. For legacy system repairs requiring exact original component specifications, the CDR125-180MC remains available in current inventory.

Frequently Asked Questions (FAQ)

Q: Can the CDR125NP-180MC be used as a direct replacement for the CDR125-180MC in existing designs?

A: Yes. The CDR125NP-180MC is electrically and mechanically equivalent to the CDR125-180MC. Both components have identical inductance (18 µH), current rating (2.4 A), DC resistance (60 mOhm max), shielding, and physical dimensions. The substitute part is compatible with existing PCB layouts and circuit designs without modification.

Q: What is the significance of the product status difference between these parts?

A: The CDR125-180MC is classified as obsolete, indicating that the manufacturer has discontinued active production and support. The CDR125NP-180MC maintains active product status, meaning it is currently manufactured, supported by the supplier, and available through standard distribution channels. Active status provides assurance of continued availability and compliance with evolving regulatory requirements.

Q: Does the extended operating temperature range of the CDR125NP-180MC affect circuit performance?

A: The CDR125NP-180MC operates from -40°C to 100°C, compared to -25°C to 70°C for the CDR125-180MC. The extended range does not negatively affect performance within the original operating window. If your application operates within the original -25°C to 70°C range, both parts perform identically. The extended range of the substitute part provides additional operational margin for temperature-sensitive environments.

Q: What is the difference between bulk packaging and Tape & Reel (TR) packaging?

A: The CDR125-180MC is supplied in bulk packaging, suitable for manual assembly or small-quantity applications. The CDR125NP-180MC is supplied in Tape & Reel format, which is standard for automated pick-and-place assembly equipment. Tape & Reel packaging provides better component protection, improved handling efficiency in manufacturing environments, and is the industry standard for high-volume production.

Q: Is the RoHS compliance difference important for my application?

A: The CDR125NP-180MC is ROHS3 compliant, while the CDR125-180MC is RoHS non-compliant. RoHS compliance is mandatory for products sold in the European Union and is increasingly required by major OEMs globally. If your application or end market requires RoHS compliance, the CDR125NP-180MC is the appropriate selection. For legacy systems with no RoHS requirement, both parts are functionally equivalent.

Q: Are there any electrical performance differences between these inductors?

A: No. Both the CDR125-180MC and CDR125NP-180MC have identical electrical specifications: 18 µH inductance with ±20% tolerance, 2.4 A current rating, 60 mOhm maximum DC resistance, 16.1 MHz self-resonant frequency, and 2.52 MHz test frequency. Electrical performance is equivalent across all specified parameters.

Q: Can I mix CDR125-180MC and CDR125NP-180MC components in the same production batch?

A: Yes. Both components are electrically and mechanically equivalent and can be used interchangeably in the same circuit design. However, for manufacturing traceability and quality control purposes, it is recommended to maintain consistent component sourcing within a single production batch when possible.