SD10-3R3-R Equivalent & Substitute Parts

Part Overview

The SD10-3R3-R is a 3.3 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is designed for applications requiring fixed inductance with moderate current handling capability. The part is classified as Active product status with full RoHS compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical parameters align within acceptable tolerances for the application requirements.

Substiute Parts

SD10-3R3-R

Eaton - Electronics DivisionIn Stock: 913SD10-3R3-R Datasheet

Current PartRFQ

SRR4011-3R3YL

Bourns Inc.In Stock: 3704SRR4011-3R3YL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SD10-3R3-R is determined by the following critical parameters:

Primary Electrical Parameters:

• Inductance value: 3.3 µH (exact match required)
• Current rating: minimum 1.24 A
• DC resistance: within acceptable operating limits
• Saturation current: minimum 1.31 A

Physical & Environmental Parameters:

• Shielding: Shielded configuration
• Core material: Ferrite drum core
• Mounting: Surface mount technology
• Operating temperature: minimum -40°C ~ 85°C range
• RoHS compliance: required

The SRR4011-3R3YL from Bourns Inc. meets these substitution criteria with equivalent inductance, higher current rating, compatible DC resistance specification, and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

SD10-3R3-R Selection Criteria:

• Primary choice when Eaton component availability and supply chain continuity are prioritized
• Suitable for applications with operating temperature requirements up to 85°C
• RoHS Compliant status meets environmental regulatory requirements
• Active product status ensures continued manufacturer support

SRR4011-3R3YL Selection Criteria:

• Suitable as direct substitute with enhanced performance margins
• Higher current rating (1.6 A vs 1.24 A) provides additional design headroom
• Extended operating temperature range (-40°C ~ 125°C) accommodates broader thermal environments
• ROHS3 compliance meets current regulatory standards
• Active product status with higher inventory availability (3662 pcs vs 803 pcs)
• Slightly smaller physical footprint (4.80mm vs 5.20mm)

Both parts maintain Active product status and full regulatory compliance. Selection between these components depends on application-specific requirements for current capacity, temperature range, and supply chain preferences.

Frequently Asked Questions (FAQ)

Q: Can SRR4011-3R3YL replace SD10-3R3-R in existing designs?

A: Yes. Both components share identical 3.3 µH inductance values, ferrite shielded drum core construction, and surface mount configuration. The SRR4011-3R3YL provides equivalent or superior electrical performance with higher current rating and extended temperature range.

Q: What are the physical dimension differences?

A: SD10-3R3-R measures 5.20mm x 5.20mm x 1.00mm (height). SRR4011-3R3YL measures 4.80mm x 4.80mm x 1.30mm (height). The substitute is slightly smaller in footprint but taller. PCB layout verification is required for height-constrained applications.

Q: Are the DC resistance values compatible?

A: Yes. SD10-3R3-R specifies 107.8 mOhm; SRR4011-3R3YL specifies 110 mOhm maximum. This 2.2 mOhm difference is negligible for most circuit applications and falls within normal manufacturing tolerances.

Q: What is the inductance tolerance difference impact?

A: SD10-3R3-R has ±20% tolerance; SRR4011-3R3YL has ±30% tolerance. For circuits requiring tighter inductance control, the Eaton part provides better tolerance. For general applications, both tolerances are acceptable.

Q: Do both parts have identical saturation characteristics?

A: No. SD10-3R3-R saturates at 1.31 A; SRR4011-3R3YL saturates at 1.4 A. The Bourns substitute provides higher saturation margin, beneficial for applications approaching current limits.

Q: Are there temperature range considerations for substitution?

A: Yes. SD10-3R3-R operates -40°C to 85°C; SRR4011-3R3YL operates -40°C to 125°C. The substitute accommodates higher temperature environments. For applications limited to 85°C maximum, both are suitable.

Q: What packaging format do both parts use?

A: Both components are supplied in Tape & Reel (TR) format for automated assembly. Moisture sensitivity level is identical at MSL 1 (Unlimited), requiring no special storage precautions.

Q: Are both parts RoHS compliant?

A: Yes. SD10-3R3-R is RoHS Compliant; SRR4011-3R3YL is ROHS3 Compliant. Both meet environmental regulatory requirements for lead-free and restricted substance compliance.