DR1030-330-R Equivalent & Substitute Parts

Part Overview

The DR1030-330-R is a 33 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 1.6 A continuous current with a maximum DC resistance of 136.3 mOhm and operates across the temperature range of -40°C to 125°C. The part is ROHS3 compliant and carries an active product status. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or design flexibility within the allowed parameter tolerances.

Substiute Parts

DR1030-330-R

Eaton - Electronics DivisionIn Stock: 1964DR1030-330-R Datasheet

Current PartRFQ

CDRH8D43NP-330NC

Sumida America Components Inc.In Stock: 2403CDRH8D43NP-330NC Datasheet

SimilarRFQ

SRU1028-330Y

Bourns Inc.In Stock: 2945SRU1028-330Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DR1030-330-R are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 33 µH (within ±30% tolerance specification)
• Inductance tolerance: ±30%
• Core material: Ferrite
• Shielding: Shielded construction
• Mounting type: Surface Mount
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 (Unlimited)

Secondary Compatibility Parameters:

• Current rating: Minimum 1.25 A (acceptable for applications requiring ≤1.6 A)
• DC resistance: Maximum 139 mOhm (within acceptable operating parameters)
• Operating temperature: Minimum -40°C to 100°C (acceptable for applications not exceeding 100°C)
• Package classification: Nonstandard surface mount

The identified substitutes CDRH8D43NP-330NC and SRU1028-330Y meet all primary criteria and maintain functional equivalence within the specified parameter windows.

Parameter Comparison

Engineering Selection Recommendations

DR1030-330-R (Eaton - Electronics Division): Primary choice for applications requiring the full 1.6 A current rating and extended temperature operation to 125°C. Active product status with ROHS3 compliance and MSL 1 rating ensures long-term availability and environmental compliance.

CDRH8D43NP-330NC (Sumida America Components Inc.): Suitable for applications with current requirements up to 1.4 A. Offers the lowest DC resistance at 125 mOhm maximum and highest saturation current at 2.2 A. Operating temperature limited to 100°C maximum. ROHS3 compliant with MSL 1 rating. Compact footprint (8.00mm x 8.00mm) may provide space advantages in constrained layouts.

SRU1028-330Y (Bourns Inc.): Applicable for applications with current requirements up to 1.25 A. Maintains full temperature range operation (-40°C to 125°C) matching the primary part. DC resistance of 139 mOhm is within acceptable tolerance. ROHS3 compliant with MSL 1 rating and REACH unaffected status. Drum core wirewound construction matches the primary part design.

Selection between substitutes depends on specific application current requirements, thermal environment, and available board space.

Frequently Asked Questions (FAQ)

Q: Can CDRH8D43NP-330NC replace DR1030-330-R in all applications?

A: CDRH8D43NP-330NC is suitable for applications requiring current up to 1.4 A and operating temperatures not exceeding 100°C. Applications requiring the full 1.6 A rating or operation above 100°C require the primary part or SRU1028-330Y.

Q: What is the impact of different DC resistance values between these parts?

A: DC resistance values range from 125 mOhm (CDRH8D43NP-330NC) to 139 mOhm (SRU1028-330Y), compared to 136.3 mOhm for DR1030-330-R. These variations fall within acceptable operating parameters and result in minimal power dissipation differences in typical circuit applications.

Q: Are there physical footprint differences that affect PCB layout?

A: Yes. CDRH8D43NP-330NC measures 8.00mm x 8.00mm with 4.50mm height. DR1030-330-R measures 10.50mm x 10.30mm with 3.00mm height. SRU1028-330Y measures 10.00mm x 10.00mm with 3.10mm height. PCB layout must accommodate these dimensional variations.

Q: Do all substitute parts maintain the same environmental compliance?

A: All three parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. SRU1028-330Y carries additional REACH unaffected status. All parts are suitable for equivalent environmental applications.

Q: What is the saturation current significance for these inductors?

A: Saturation current indicates the point at which inductance begins to degrade. DR1030-330-R saturates at 1.81 A, CDRH8D43NP-330NC at 2.2 A, and SRU1028-330Y at 1.2 A. Applications must operate below these thresholds to maintain specified inductance values.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Physical footprint differences require PCB layout modifications. Electrical substitution is valid within the specified current and temperature parameters. Assembly process compatibility should be verified with manufacturing specifications.