CD1-5R2-R Equivalent & Substitute Parts Reference

Part Overview

The CD1-5R2-R is a 5.2 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 5.05 A continuous current with a maximum DC resistance of 22 mOhm and operates across the temperature range of -40°C to 85°C. The part is classified as obsolete, necessitating identification of equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

CD1-5R2-R

Eaton - Electronics DivisionIn Stock: 812CD1-5R2-R Datasheet

Current PartRFQ

DR1040-5R2-R

Eaton - Electronics DivisionIn Stock: 1318DR1040-5R2-R Datasheet

DirectRFQ

CDRH104RNP-5R2NC

Sumida America Components Inc.In Stock: 2229CDRH104RNP-5R2NC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD1-5R2-R are qualified based on the following critical parameters:

Primary Matching Criteria:

• Inductance value: 5.2 µH with ±30% tolerance
• Core material: Ferrite with shielding
• Mounting type: Surface mount
• Test frequency: 100 kHz
• Moisture sensitivity: MSL 1

Secondary Compatibility Parameters:

• Current rating: Equal to or greater than 5.05 A
• DC resistance: Equal to or less than 22 mOhm
• Saturation current: Equal to or greater than 5.5 A
• Operating temperature range: Must encompass or extend the -40°C to 85°C specification
• Physical dimensions: Nonstandard package with height not exceeding 4.00mm

Two substitute parts meet these criteria and are classified as direct or similar equivalents based on their alignment with the primary and secondary parameters.

Parameter Comparison

Engineering Selection Recommendations

DR1040-5R2-R (Direct Substitute - Recommended)

The DR1040-5R2-R is the primary equivalent for the obsolete CD1-5R2-R. Both parts are manufactured by Eaton - Electronics Division and share identical inductance, tolerance, and core specifications. The DR1040-5R2-R offers superior electrical performance with a lower DC resistance of 17 mOhm compared to 22 mOhm, resulting in reduced power dissipation. The current rating of 5.4 A exceeds the original 5.05 A specification. The extended operating temperature range of -40°C to 125°C provides additional thermal margin. The DR1040-5R2-R is active in production status and available in Tape & Reel packaging. Compliance certifications include ROHS3 and REACH Unaffected status, meeting modern regulatory requirements.

CDRH104RNP-5R2NC (Similar Substitute - Alternative)

The CDRH104RNP-5R2NC manufactured by Sumida America Components Inc. provides an alternative equivalent with identical inductance and tolerance specifications. This part delivers the highest current rating at 6 A and maintains the same 22 mOhm maximum DC resistance as the original. The operating temperature range extends to 100°C, exceeding the original -40°C to 85°C specification. Physical dimensions are slightly reduced (10.20 x 10.00 mm versus 10.50 x 10.40 mm), which may require PCB layout verification for footprint compatibility. The CDRH104RNP-5R2NC is active in production and available in Tape & Reel packaging with ROHS3 and REACH Unaffected certifications.

Frequently Asked Questions (FAQ)

Q: Can the DR1040-5R2-R directly replace the CD1-5R2-R without circuit modifications?

A: Yes. Both parts share identical inductance (5.2 µH), tolerance (±30%), core material (ferrite), shielding, and test frequency (100 kHz). The DR1040-5R2-R has superior electrical characteristics with lower DC resistance and higher current rating, making it functionally compatible. Physical dimensions are nearly identical (10.50 x 10.30 mm versus 10.50 x 10.40 mm), requiring only verification of PCB footprint clearance.

Q: What is the difference between a "Direct" and "Similar" substitute?

A: A direct substitute shares the same manufacturer and series lineage, indicating design continuity and validated compatibility. The DR1040-5R2-R is a direct substitute from Eaton. A similar substitute meets all electrical and mechanical parameters but comes from a different manufacturer. The CDRH104RNP-5R2NC is a similar substitute from Sumida, requiring PCB layout verification due to slightly different physical dimensions.

Q: Does the CDRH104RNP-5R2NC require PCB layout changes?

A: The CDRH104RNP-5R2NC has reduced dimensions (10.20 x 10.00 mm) compared to the original CD1-5R2-R (10.50 x 10.40 mm). The height remains constant at 4.00 mm. Verify that the existing PCB footprint accommodates the smaller length and width. If the footprint is designed with minimal clearance, layout adjustment may be necessary.

Q: Are both substitute parts compliant with current regulatory standards?

A: Yes. Both the DR1040-5R2-R and CDRH104RNP-5R2NC are certified as ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements. The original CD1-5R2-R compliance status is not specified due to its obsolete status.

Q: What is the impact of the lower DC resistance in the DR1040-5R2-R?

A: The DR1040-5R2-R has a maximum DC resistance of 17 mOhm compared to 22 mOhm in the original. Lower DC resistance reduces resistive power loss (I²R), resulting in lower heat generation and improved efficiency. This is a beneficial characteristic for thermal management in the circuit.

Q: Can I use the CDRH104RNP-5R2NC if space is constrained?

A: Yes. The CDRH104RNP-5R2NC has the smallest footprint (10.20 x 10.00 mm) among the three parts, making it suitable for space-constrained applications. Verify PCB footprint compatibility before selection. All three parts maintain the same 4.00 mm height.

Q: What packaging formats are available for the substitute parts?

A: Both substitute parts are supplied in Tape & Reel (TR) packaging, which is standard for automated assembly processes. The original CD1-5R2-R packaging format is not specified. Confirm packaging requirements with your procurement process.