DR1050-470-R Equivalent & Substitute Parts Reference

Part Overview

The DR1050-470-R is a 47 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 2.06 A continuous current with a maximum DC resistance of 111 mOhm and operates across the temperature range of -40°C to 125°C. The part maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent inductance values, current ratings, shielding characteristics, and operating temperature ranges align within acceptable tolerances for the application. Alternative components may be required due to inventory availability, lead time considerations, or specific design optimization needs.

Substiute Parts

DR1050-470-R

Eaton - Electronics DivisionIn Stock: 1911DR1050-470-R Datasheet

Current PartRFQ

CDRH105RNP-470NC

Sumida America Components Inc.In Stock: 1978CDRH105RNP-470NC Datasheet

SimilarRFQ

SRU1048-470Y

Bourns Inc.In Stock: 6458SRU1048-470Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DR1050-470-R is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 47 µH (within ±30% tolerance specification)
• Shielding type: Shielded configuration required
• Core material: Ferrite drum core construction
• Mounting: Surface mount, nonstandard package
• Inductance test frequency: 100 kHz

Secondary Compatibility Criteria:

• Current rating: Minimum 1.7 A (substitute must support application current demands)
• DC resistance: Maximum 130 mOhm (acceptable variance from 111 mOhm baseline)
• Operating temperature: Minimum -40°C to 100°C (DR1050-470-R operates to 125°C)
• Saturation current: Minimum 1.5 A
• Compliance: ROHS3 compliant, MSL 1 rating

The two identified substitute parts meet these criteria with minor parameter variations that remain within acceptable engineering tolerances for equivalent functionality.

Parameter Comparison

Engineering Selection Recommendations

DR1050-470-R (Eaton - Electronics Division)

Primary specification with highest current rating (2.06 A) and saturation current (2.1 A). Operates across full temperature range (-40°C to 125°C). ROHS3 compliant with REACH Unaffected status. Drum core wirewound construction confirmed. Recommended for applications requiring maximum current capacity and extended high-temperature operation.

CDRH105RNP-470NC (Sumida America Components Inc.)

Substitute with equivalent 47 µH inductance and 2.0 A current rating. DC resistance specification of 130 mOhm represents 17% increase from primary part. Operating temperature limited to 100°C maximum. ROHS3 compliant with Vendor Undefined REACH status. Suitable for applications operating below 100°C with current demands at or below 2.0 A.

SRU1048-470Y (Bourns Inc.)

Substitute with lowest DC resistance (94 mOhm, 15% reduction from primary). Current rating of 1.7 A and saturation current of 1.5 A represent reduced current capacity. Operates across full temperature range (-40°C to 125°C) matching primary part. ROHS3 compliant with REACH Unaffected status. Drum core wirewound construction confirmed. Recommended for applications prioritizing lower DC resistance and full temperature range operation with current demands at or below 1.7 A.

All three parts maintain ROHS3 compliance, MSL 1 rating, and surface mount configuration in tape and reel packaging format.

Frequently Asked Questions (FAQ)

Q: Can CDRH105RNP-470NC replace DR1050-470-R in all applications?

A: CDRH105RNP-470NC is suitable for applications where operating temperature does not exceed 100°C and current demand does not exceed 2.0 A. The 130 mOhm DC resistance specification is 17% higher than the primary part. Applications requiring operation above 100°C or with current demands exceeding 2.0 A require the primary DR1050-470-R or SRU1048-470Y.

Q: What is the primary difference between SRU1048-470Y and DR1050-470-R?

A: SRU1048-470Y features lower DC resistance (94 mOhm versus 111 mOhm) but reduced current rating (1.7 A versus 2.06 A). Both parts operate across -40°C to 125°C and maintain ROHS3 compliance. Selection depends on whether the application prioritizes lower resistance or higher current capacity.

Q: Are all three parts available in identical package dimensions?

A: Package dimensions vary slightly. DR1050-470-R measures 10.50mm L x 10.30mm W x 5.00mm H. CDRH105RNP-470NC measures 10.20mm L x 10.00mm W x 5.20mm H. SRU1048-470Y measures 10.00mm L x 10.00mm W x 5.10mm H. All are classified as nonstandard packages. PCB layout verification is required when substituting between parts.

Q: What compliance certifications apply to all substitute parts?

A: All three parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating. DR1050-470-R and SRU1048-470Y are REACH Unaffected. CDRH105RNP-470NC carries Vendor Undefined REACH status. All parts are classified under ECCN EAR99 and HTSUS 8504.50.4000.

Q: Which substitute part has the best DC resistance specification?

A: SRU1048-470Y provides the lowest maximum DC resistance at 94 mOhm, representing a 15% improvement over the primary DR1050-470-R specification of 111 mOhm. This characteristic is beneficial for applications where power dissipation and thermal management are critical design factors.

Q: Can SRU1048-470Y handle the full current rating of DR1050-470-R?

A: No. SRU1048-470Y is rated for 1.7 A continuous current with 1.5 A saturation current, compared to DR1050-470-R at 2.06 A continuous and 2.1 A saturation. Applications requiring current above 1.7 A must use DR1050-470-R or CDRH105RNP-470NC (2.0 A rating).

Q: Are all parts suitable for tape and reel automated assembly?

A: Yes. All three parts are supplied in Tape & Reel (TR) packaging format suitable for automated surface mount assembly processes. Nonstandard package classification requires verification of pick-and-place equipment compatibility and feeder specifications.