SD10-470-R Equivalent & Substitute Parts Reference

Part Overview

The SD10-470-R is a 47 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 337 mA continuous current with a DC resistance of 1.47 Ohm and operates across the temperature range of -40°C to 85°C. The part is currently active in production and RoHS compliant, making it suitable for modern electronic applications requiring fixed inductance filtering, energy storage, or signal conditioning in compact form factors.

Equivalent and substitute parts are identified to address supply chain continuity, inventory availability, or application-specific performance requirements where the primary part may be unavailable or where alternative electrical characteristics better suit circuit design parameters.

Substiute Parts

SD10-470-R

Eaton - Electronics DivisionIn Stock: 803SD10-470-R Datasheet

Current PartRFQ

SRR4011-470YL

Bourns Inc.In Stock: 1728SRR4011-470YL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SD10-470-R is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 47 µH (exact match required)
• Core type: Ferrite drum core, wirewound construction
• Shielding: Shielded configuration
• Mounting: Surface mount technology
• Current handling: Minimum 337 mA continuous rating
• DC resistance: Acceptable range based on circuit design tolerance
• Operating temperature: Minimum -40°C to 85°C coverage
• Compliance: RoHS status for regulatory alignment

The SRR4011-470YL from Bourns Inc. qualifies as a substitute part because it maintains the same inductance value (47 µH), core material (ferrite), shielding (shielded), and mounting type (surface mount). The substitute part exceeds the current rating requirement (480 mA vs. 337 mA) and provides improved saturation current performance (400 mA vs. 349 mA), while maintaining ferrite drum core construction and surface mount packaging.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (SD10-470-R): Select the SD10-470-R when the original design specifications require the exact DC resistance of 1.47 Ohm, the compact height of 1.00 mm, or when operating temperatures do not exceed 85°C. This part is RoHS compliant and actively manufactured by Eaton.

Substitute Part Selection (SRR4011-470YL): The SRR4011-470YL from Bourns serves as a functional substitute when:

• Supply of the primary part is unavailable
• Circuit design can accommodate the lower DC resistance (1.25 Ohm max) and wider inductance tolerance (±30%)
• PCB layout can accept the increased height of 1.30 mm
• Operating environment requires extended temperature range up to 125°C
• Higher current handling capability (480 mA) provides design margin

Both parts maintain RoHS compliance and active production status. The substitute part's ROHS3 certification aligns with current regulatory requirements. Moisture sensitivity level remains identical at MSL 1 (Unlimited) for both components.

Frequently Asked Questions (FAQ)

Q: Can the SRR4011-470YL directly replace the SD10-470-R in all applications?

A: The SRR4011-470YL is electrically compatible for most applications due to matching inductance value and core type. However, verify that your circuit design tolerates the lower DC resistance (1.25 Ohm vs. 1.47 Ohm), wider inductance tolerance (±30% vs. ±20%), and increased component height (1.30 mm vs. 1.00 mm). PCB layout and thermal design must accommodate these differences.

Q: What is the significance of the different inductance tolerances?

A: The SD10-470-R has ±20% tolerance while the SRR4011-470YL has ±30% tolerance. This means the substitute part's actual inductance value may deviate further from the nominal 47 µH. In precision filtering or resonant circuit applications, this wider tolerance may require circuit tuning or component selection during assembly.

Q: Are there thermal performance differences between these parts?

A: The SRR4011-470YL operates to 125°C compared to the SD10-470-R's 85°C maximum. The substitute part's lower DC resistance (1.25 Ohm max vs. 1.47 Ohm) generates less heat during operation. If your application operates near the upper temperature limit of the primary part, the substitute provides improved thermal margin.

Q: How do the physical dimensions affect PCB layout?

A: The SD10-470-R measures 5.20 x 5.20 mm with 1.00 mm height. The SRR4011-470YL measures 4.80 x 4.80 mm with 1.30 mm height. The substitute is slightly smaller in footprint but taller. Verify that your PCB layout and component clearance specifications accommodate the 0.30 mm additional height before substitution.

Q: What does the higher current rating of the SRR4011-470YL mean for my design?

A: The substitute part is rated for 480 mA continuous current versus 337 mA for the primary part. This higher rating provides additional design margin and allows the substitute to handle transient current spikes without saturation. Saturation current also increases from 349 mA to 400 mA, improving performance under peak load conditions.

Q: Are both parts suitable for high-reliability applications?

A: Both the SD10-470-R and SRR4011-470YL are RoHS compliant (RoHS and ROHS3 respectively), actively manufactured, and carry MSL 1 rating. Both are suitable for commercial and industrial applications. Verify specific reliability requirements with your quality and procurement departments for mission-critical applications.