SC63CB-220 Equivalent & Substitute Parts

Part Overview

The SC63CB-220 is a 22 µH shielded inductor manufactured by Signal Transformer, designed for surface mount applications requiring fixed inductance in compact form factors. This component is rated for 1.75 A continuous current with a maximum DC resistance of 110mOhm and operates across the industrial temperature range of -40°C to 125°C. The part maintains Active product status and carries full RoHS3 compliance.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design flexibility permits selection from qualified alternatives meeting equivalent electrical and mechanical specifications.

Substiute Parts

SC63CB-220

Signal TransformerIn Stock: 995SC63CB-220 Datasheet

Current PartRFQ

DR73-220-R

Eaton - Electronics DivisionIn Stock: 3820DR73-220-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC63CB-220 is determined by strict equivalence across the following critical parameters:

• Inductance value: 22 µH at 100 kHz test frequency
• Inductance tolerance: ±20%
• Current rating: minimum 1.75 A continuous
• DC resistance: maximum 110mOhm
• Shielding: Shielded construction required
• Operating temperature range: -40°C to 125°C minimum
• Mounting type: Surface Mount
• Compliance: RoHS3 and REACH requirements

The DR73-220-R from Eaton - Electronics Division meets all substitution criteria. Both components share identical inductance specifications, matching tolerance bands, and equivalent thermal operating ranges. The substitute part demonstrates superior saturation current performance (1.67 A vs. 970mA) and maintains DC resistance within acceptable limits (107mOhm vs. 110mOhm maximum).

Parameter Comparison

Engineering Selection Recommendations

Both the SC63CB-220 and DR73-220-R maintain Active product status with full regulatory compliance under RoHS3 and REACH frameworks. Selection between these components should be based on availability, lead time requirements, and physical form factor constraints.

The DR73-220-R exhibits a current rating of 1.62 A, which is 0.13 A lower than the SC63CB-220 specification of 1.75 A. This difference remains acceptable for applications where the design current does not exceed 1.62 A. The substitute part's superior saturation current (1.67 A) provides additional margin in transient conditions.

Physical dimensions differ between the two parts: the SC63CB-220 measures 6.30mm × 6.20mm with 4.60mm seated height, while the DR73-220-R measures 7.60mm × 7.60mm with 4.65mm seated height. PCB layout and thermal management considerations must account for these dimensional variations.

Frequently Asked Questions (FAQ)

Q: Can the DR73-220-R replace the SC63CB-220 in all applications?

A: The DR73-220-R is electrically equivalent for applications where the design current does not exceed 1.62 A. If your circuit requires the full 1.75 A rating, the substitute part operates at reduced margin. Verify that your application current profile remains below 1.62 A continuous operation.

Q: What are the physical compatibility considerations?

A: The DR73-220-R is larger than the SC63CB-220 (7.60mm × 7.60mm vs. 6.30mm × 6.20mm). Confirm that your PCB layout accommodates the larger footprint and that thermal dissipation paths remain adequate for the substitute component.

Q: Are both parts suitable for the same temperature range?

A: Yes. Both components operate across -40°C to 125°C, meeting identical thermal specifications for industrial applications.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the SC63CB-220 and DR73-220-R carry RoHS3 compliance and REACH Unaffected status, ensuring equivalent regulatory qualification for your application.

Q: How do the DC resistance values compare?

A: The SC63CB-220 specifies 110mOhm maximum, while the DR73-220-R specifies 107mOhm. The substitute part exhibits lower resistance, which reduces I²R losses and improves efficiency in current-carrying applications.

Q: What is the inductance tolerance for both parts?

A: Both components maintain ±20% inductance tolerance at 100 kHz test frequency, ensuring equivalent circuit performance across the specified tolerance band.