SD53-220-R Equivalent & Substitute Parts

Part Overview

The SD53-220-R is a 22 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 currently active in production with RoHS compliance certification. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, design optimization, or application-specific requirements.

Substiute Parts

SD53-220-R

Eaton - Electronics DivisionIn Stock: 15516SD53-220-R Datasheet

Current PartRFQ

SRU5028-220Y

Bourns Inc.In Stock: 1463SRU5028-220Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SD53-220-R is determined by the following criteria:

Mandatory Matching Parameters:

• Inductance value: 22 µH (exact match required)
• Mounting type: Surface Mount
• Package dimensions: 5.20 x 5.20 mm footprint with 3.00 mm maximum height
• Core type: Ferrite drum core, shielded configuration
• Operating temperature range: -40°C to 125°C minimum

Allowable Variation Parameters:

• Current rating: Substitute must equal or exceed 810 mA
• DC resistance: Substitute may vary within application tolerance
• Inductance tolerance: Substitute tolerance may differ from ±20%
• Saturation current: Substitute specification may differ
• RoHS compliance: Substitute must maintain equivalent or superior compliance status

The SRU5028-220Y from Bourns Inc. meets all mandatory matching criteria and provides equivalent or superior electrical performance within the allowable variation range.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: SD53-220-R (Eaton)

The SD53-220-R is the specified component and should be used when available. This part is active in production with confirmed inventory of 15,500 pieces. It carries full RoHS compliance certification and meets all design specifications with a maximum DC resistance of 208 mOhm.

Substitute Part: SRU5028-220Y (Bourns)

The SRU5028-220Y is a direct functional equivalent suitable for applications where the SD53-220-R is unavailable. This substitute provides the following advantages:

• Higher current rating (950 mA vs. 810 mA) provides additional thermal margin
• Lower DC resistance (162 mOhm vs. 208 mOhm) reduces power dissipation
• Identical physical footprint and height ensure PCB compatibility without layout modification
• ROHS3 compliance exceeds current regulatory requirements
• Identical operating temperature range and moisture sensitivity classification

The SRU5028-220Y carries current inventory of 1,410 pieces and is active in production.

Selection Criteria:

Use the SD53-220-R when design specifications explicitly require the Eaton SD53 series or when the tighter inductance tolerance (±20%) is critical to circuit performance. Use the SRU5028-220Y when supply of the primary part is constrained and the application can accommodate the wider inductance tolerance (±30%) and lower DC resistance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the SRU5028-220Y be used as a direct replacement for the SD53-220-R without PCB modification?

A: Yes. Both parts share identical footprint dimensions (5.20 x 5.20 mm) and maximum seated height (3.00 mm). No PCB layout changes are required for mechanical compatibility.

Q: What is the impact of the different DC resistance values on circuit performance?

A: The SRU5028-220Y has lower DC resistance (162 mOhm vs. 208 mOhm), resulting in reduced power dissipation and improved efficiency. For applications sensitive to resistive losses, this represents an improvement. For applications where the SD53-220-R resistance was already accounted for in thermal calculations, the substitute will perform with lower heat generation.

Q: Does the wider inductance tolerance of the SRU5028-220Y (±30% vs. ±20%) affect circuit functionality?

A: Tolerance impact depends on circuit design. If the application requires inductance within ±20%, verify that the SRU5028-220Y tolerance range remains acceptable. Both parts are tested at 100 kHz, ensuring consistent measurement methodology.

Q: Are there any frequency response differences between these parts?

A: The SRU5028-220Y provides additional frequency characterization data (Q @ 2.52 MHz = 15; Self Resonant Frequency = 18 MHz). The SD53-220-R does not specify these parameters. For applications operating near or above 10 MHz, the Bourns part's published resonant frequency may be relevant for design verification.

Q: What is the saturation current difference, and does it matter?

A: The SD53-220-R has higher saturation current (940 mA vs. 850 mA). For applications operating near maximum current ratings, the Eaton part provides additional saturation margin. The SRU5028-220Y's higher continuous current rating (950 mA) compensates for the lower saturation specification in most practical applications.

Q: Are both parts equally compliant with current environmental regulations?

A: Yes. The SD53-220-R is RoHS Compliant. The SRU5028-220Y is ROHS3 Compliant, which represents the current standard. Both parts meet MSL 1 (Unlimited) moisture sensitivity requirements, eliminating special handling or storage procedures.

Q: Which part should be selected for new designs?

A: For new designs, either part is acceptable based on availability and supply chain strategy. The SRU5028-220Y offers lower DC resistance and higher current rating, making it suitable for applications requiring thermal optimization. The SD53-220-R offers tighter inductance tolerance for circuits requiring precise inductance values.