SC63LCB-220 Equivalent & Substitute Parts

Part Overview

The SC63LCB-220 is a 22 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 1.5 A continuous current with a maximum DC resistance of 119 mOhm. This component is classified as Active product status and is ROHS3 compliant. Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit operation within alternative electrical and mechanical specifications that maintain functional equivalence within the defined parameter tolerances.

Substiute Parts

SC63LCB-220

Signal TransformerIn Stock: 984SC63LCB-220 Datasheet

Current PartRFQ

DRA73-220-R

Eaton - Electronics DivisionIn Stock: 1235DRA73-220-R Datasheet

MFR RecommendedRFQ

VLCF5028T-220MR71-2

TDK CorporationIn Stock: 4090VLCF5028T-220MR71-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC63LCB-220 is determined by the following critical parameters:

• Inductance Value: Must be 22 µH with ±20% tolerance
• Shielding: Must be shielded construction
• Mounting Type: Must be surface mount
• Current Rating: Must support minimum 1.5 A continuous operation
• DC Resistance: Must not exceed 119 mOhm maximum
• Operating Temperature: Must support -40°C to 125°C minimum range
• RoHS Compliance: Must maintain ROHS3 compliance status
• Moisture Sensitivity: MSL 1 classification required

Two substitute parts meet these criteria: the DRA73-220-R (Eaton - Electronics Division) and the VLCF5028T-220MR71-2 (TDK Corporation). Both components maintain the specified inductance value, shielding requirement, surface mount configuration, and compliance certifications. Variations in current saturation ratings, physical dimensions, and core material types do not preclude substitution when the primary electrical parameters remain within acceptable operating margins.

Parameter Comparison

Engineering Selection Recommendations

DRA73-220-R (Eaton - Electronics Division): This substitute maintains current rating of 1.42 A, which approaches the SC63LCB-220 specification of 1.5 A. DC resistance of 141 mOhm exceeds the maximum specification by 22 mOhm. Operating temperature range extends to 165°C, providing additional thermal margin. AEC-Q200 automotive qualification is present. ROHS3 compliance and MSL 1 classification are maintained. Packaging is Tape & Reel format.

VLCF5028T-220MR71-2 (TDK Corporation): This substitute features a current rating of 710 mA, which is below the SC63LCB-220 specification of 1.5 A. DC resistance of 140 mOhm exceeds the maximum specification by 21 mOhm. Operating temperature range is limited to 105°C, which does not cover the full -40°C to 125°C requirement. Ferrite drum core construction with wirewound type is specified. ROHS3 compliance and MSL 1 classification are maintained. Packaging is Tape & Reel format. Physical dimensions are the smallest among the three options at 5.00mm x 5.00mm.

Frequently Asked Questions (FAQ)

Q: Can the DRA73-220-R be used as a direct replacement for the SC63LCB-220?

A: The DRA73-220-R meets the core substitution criteria: 22 µH inductance, ±20% tolerance, shielded construction, surface mount configuration, and ROHS3 compliance. Current rating of 1.42 A is within acceptable margin of the 1.5 A specification. DC resistance of 141 mOhm exceeds the maximum by 22 mOhm. Application-specific thermal and current load analysis is required to confirm suitability.

Q: Is the VLCF5028T-220MR71-2 suitable for all applications requiring the SC63LCB-220?

A: The VLCF5028T-220MR71-2 maintains inductance value, tolerance, shielding, and compliance requirements. However, the current rating of 710 mA is significantly below the 1.5 A specification, and the operating temperature range maximum of 105°C does not extend to the full 125°C requirement. This substitute is applicable only to applications where current demand does not exceed 710 mA and operating temperature remains below 105°C.

Q: What is the impact of increased DC resistance in substitute parts?

A: The DRA73-220-R and VLCF5028T-220MR71-2 both specify DC resistance of 140-141 mOhm, compared to 119 mOhm maximum for the SC63LCB-220. This 21-22 mOhm increase results in proportionally higher resistive losses and heat dissipation. Circuit design must account for this additional resistance in power budget calculations and thermal management considerations.

Q: Are all three parts compatible with the same PCB footprint?

A: Physical dimensions differ among the three parts. The SC63LCB-220 measures 6.30mm x 6.20mm with 3.00mm height. The DRA73-220-R measures 7.60mm x 7.60mm with 4.65mm height. The VLCF5028T-220MR71-2 measures 5.00mm x 5.00mm with 2.80mm height. PCB layout compatibility must be verified before substitution.

Q: Do all substitute parts maintain ROHS3 and MSL 1 compliance?

A: Yes. Both the DRA73-220-R and VLCF5028T-220MR71-2 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity classification, matching the SC63LCB-220 specifications.