CD1-470-R Equivalent & Substitute Parts Reference

Part Overview

The CD1-470-R is a 47 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 2.09 A continuous current with a maximum DC resistance of 128 mOhm and operates across the temperature range of -40°C to 85°C. The part carries an obsolete product status, making identification of suitable equivalent components essential for ongoing design support, production continuity, and system maintenance applications.

Substiute Parts

CD1-470-R

Eaton - Electronics DivisionIn Stock: 800CD1-470-R Datasheet

Current PartRFQ

DR1040-470-R

Eaton - Electronics DivisionIn Stock: 1975DR1040-470-R Datasheet

DirectRFQ

CDRH104RNP-470NC

Sumida America Components Inc.In Stock: 2013CDRH104RNP-470NC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD1-470-R is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Inductance value: 47 µH (fixed requirement)
• Inductance tolerance: ±30% (fixed requirement)
• DC resistance: 128 mOhm maximum (fixed requirement)
• Current saturation rating: 2.1 A minimum (fixed requirement)
• Shielding configuration: Shielded (fixed requirement)
• Test frequency: 100 kHz (fixed requirement)

Mechanical Equivalence Criteria:

• Mounting type: Surface mount (fixed requirement)
• Package classification: Nonstandard (fixed requirement)
• Height seated maximum: 4.00 mm (fixed requirement)
• Moisture sensitivity level: 1 (Unlimited) (fixed requirement)

Operational Criteria:

• Operating temperature range must encompass or exceed the original -40°C to 85°C specification

The identified substitute parts meet all electrical and mechanical parameters. Variations in current rating (1.9 A vs. 2.09 A) and operating temperature upper limits represent acceptable trade-offs where the substitute maintains saturation current at 2.1 A and operates within or above the original temperature envelope.

Parameter Comparison

Engineering Selection Recommendations

DR1040-470-R (Eaton - Electronics Division): This substitute is manufactured by the same original equipment manufacturer as the CD1-470-R. The part maintains identical electrical specifications including inductance, tolerance, DC resistance, and saturation current. The extended operating temperature range (-40°C to 125°C) provides additional thermal margin beyond the original specification. The part carries active product status with ROHS3 compliance and REACH unaffected designation, supporting long-term supply chain availability and regulatory alignment. Packaging is provided in Tape & Reel format, facilitating automated assembly processes.

CDRH104RNP-470NC (Sumida America Components Inc.): This substitute meets all critical electrical parameters with identical inductance, tolerance, DC resistance, and saturation current specifications. The operating temperature range (-40°C to 100°C) encompasses the original specification envelope. The part carries active product status with ROHS3 compliance. Dimensional footprint is slightly reduced (10.20 mm x 10.00 mm versus 10.50 mm x 10.40 mm), which may provide layout optimization benefits in space-constrained applications. Packaging is provided in Tape & Reel format. REACH status is listed as vendor undefined.

Frequently Asked Questions (FAQ)

Q: Can the DR1040-470-R directly replace the CD1-470-R in existing designs?

A: Yes. The DR1040-470-R maintains identical electrical specifications across inductance, tolerance, DC resistance, and saturation current. The extended operating temperature range provides additional thermal capability. Both parts are surface mount with identical height specifications (4.00 mm maximum seated height). The primary consideration is packaging format: the substitute is supplied in Tape & Reel rather than the original nonstandard packaging, which is advantageous for production environments.

Q: What is the significance of the current rating difference between CD1-470-R (2.09 A) and the substitutes (1.9 A)?

A: The continuous current rating difference reflects component design variations. However, all three parts share an identical saturation current specification of 2.1 A. For applications operating below 1.9 A continuous current, the substitutes are fully equivalent. For applications requiring continuous current between 1.9 A and 2.09 A, thermal analysis of the specific application is necessary to determine if the substitute's DC resistance and thermal characteristics remain acceptable.

Q: Are there dimensional compatibility concerns with the CDRH104RNP-470NC substitute?

A: The CDRH104RNP-470NC has a slightly smaller footprint (10.20 mm x 10.00 mm) compared to the CD1-470-R (10.50 mm x 10.40 mm). The height specification remains identical at 4.00 mm maximum. The reduced footprint may require PCB layout verification to confirm pad alignment and clearance, but the smaller dimensions generally present no compatibility obstacles and may offer layout advantages.

Q: What compliance certifications apply to each substitute?

A: The DR1040-470-R carries ROHS3 compliance and REACH unaffected status. The CDRH104RNP-470NC carries ROHS3 compliance with REACH status listed as vendor undefined. Both substitutes meet current regulatory requirements for electronics manufacturing. The original CD1-470-R compliance status is not specified in the provided data.

Q: Which substitute offers the best long-term supply availability?

A: Both substitutes carry active product status, indicating ongoing manufacturing and distribution support. The DR1040-470-R is manufactured by Eaton - Electronics Division, the original equipment manufacturer of the CD1-470-R, providing direct manufacturer continuity. The CDRH104RNP-470NC is manufactured by Sumida America Components Inc., an established independent supplier. Both represent viable long-term sourcing options with current inventory levels of 1950 and 2000 units respectively.

Q: Can the substitutes be used interchangeably in the same PCB assembly?

A: Yes, with the noted dimensional consideration. Both substitutes maintain identical height specifications (4.00 mm) and surface mount mounting type. The footprint differences are minor and typically accommodated within standard PCB design tolerances. Tape & Reel packaging of both substitutes supports automated pick-and-place assembly processes. Verification of pad layout compatibility is recommended for the CDRH104RNP-470NC due to its slightly reduced footprint dimensions.