SC53LC-220 Equivalent & Substitute Parts

Part Overview

The SC53LC-220 is a 22 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 1.28 A continuous current with a maximum DC resistance of 190mOhm. This component is classified as Active product status and is ROHS3 compliant. Substitute parts become necessary when the SC53LC-220 reaches end-of-life inventory depletion, when design requirements mandate alternative shielding configurations, or when thermal operating range extensions are required beyond the standard -40°C to 125°C specification.

Substiute Parts

SC53LC-220

Signal TransformerIn Stock: 1153SC53LC-220 Datasheet

Current PartRFQ

B82471A1223M000

EPCOS - TDK ElectronicsIn Stock: 1214B82471A1223M000 Datasheet

MFR RecommendedRFQ

B82472G4223M000

EPCOS - TDK ElectronicsIn Stock: 2078B82472G4223M000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC53LC-220 is determined by the following mandatory parameters:

• Inductance Value: Must be 22 µH with ±20% tolerance
• Current Rating: Minimum 1.28 A continuous current capability
• DC Resistance: Maximum 190mOhm to maintain circuit performance
• Saturation Current: Minimum 860mA to prevent core saturation under load
• Mounting Type: Surface Mount only
• Shielding Configuration: Shielded construction required to maintain electromagnetic isolation
• Operating Temperature: Must support -40°C minimum and 125°C maximum
• Compliance: ROHS3 compliant, MSL 1 rating

Two qualified substitute parts meet these criteria with documented equivalency:

B82471A1223M000 (EPCOS - TDK Electronics): Unshielded configuration with extended temperature range (-55°C ~ 150°C) and higher saturation current (1.2A). Product status is Not For New Designs.

B82472G4223M000 (EPCOS - TDK Electronics): Shielded configuration with Active product status, larger footprint (7.30mm x 7.30mm), and lower saturation current (900mA).

Parameter Comparison

Engineering Selection Recommendations

B82472G4223M000 is the primary substitute for new designs and ongoing production. This part maintains shielded construction identical to the SC53LC-220, carries Active product status ensuring long-term availability, and meets all mandatory electrical parameters. The increased footprint (7.30mm x 7.30mm versus 5.30mm x 5.30mm) requires PCB layout verification. DC resistance remains within acceptable tolerance at 200mOhm maximum.

B82471A1223M000 is suitable only for legacy system maintenance or applications where unshielded construction is acceptable. This part carries Not For New Designs status and should not be selected for new product development. The unshielded configuration may introduce electromagnetic interference in sensitive circuits. Current rating of 1.11 A is below the SC53LC-220 specification and requires thermal analysis for applications approaching maximum current limits.

Both substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can B82471A1223M000 replace SC53LC-220 in shielded circuit applications?

A: No. B82471A1223M000 is unshielded and will not provide the electromagnetic isolation required by shielded circuit designs. Use B82472G4223M000 for shielded applications.

Q: What is the impact of the larger footprint in B82472G4223M000?

A: B82472G4223M000 measures 7.30mm x 7.30mm compared to SC53LC-220 at 5.30mm x 5.30mm. PCB layout must accommodate this 37.7% increase in footprint area. Height difference is minimal (4.60mm versus 3.00mm).

Q: Why is B82471A1223M000 marked Not For New Designs?

A: This designation indicates the manufacturer has discontinued active development and recommends alternative parts for new product designs. Existing inventory may be available for legacy system support only.

Q: Are the current ratings interchangeable?

A: No. B82471A1223M000 (1.11 A) and B82472G4223M000 (1.1 A) both fall below the SC53LC-220 rating of 1.28 A. Applications operating near maximum current must be re-evaluated for thermal performance with substitute parts.

Q: Do all three parts meet compliance requirements?

A: Yes. SC53LC-220, B82471A1223M000, and B82472G4223M000 are all ROHS3 compliant with MSL 1 rating and REACH Unaffected status.

Q: What is the DC resistance tolerance impact?

A: SC53LC-220 specifies 190mOhm maximum. B82471A1223M000 offers 180mOhm (10mOhm improvement), while B82472G4223M000 is 200mOhm (10mOhm increase). Circuit designs with tight impedance budgets must account for this variation.