SC63CB-470 Equivalent & Substitute Parts

Part Overview

The SC63CB-470 is a 47 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 1.34 A continuous current with a maximum DC resistance of 218mOhm. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts become necessary when primary inventory is unavailable, when design requirements demand alternative thermal or mechanical specifications, or when supply chain optimization requires qualified alternatives from established manufacturers.

Substiute Parts

SC63CB-470

Signal TransformerIn Stock: 1126SC63CB-470 Datasheet

Current PartRFQ

DR73-470-R

Eaton - Electronics DivisionIn Stock: 1695DR73-470-R Datasheet

MFR RecommendedRFQ

DR74-470-R

Eaton - Electronics DivisionIn Stock: 3559DR74-470-R Datasheet

MFR RecommendedRFQ

DRA74-470-R

Eaton - Electronics DivisionIn Stock: 2787DRA74-470-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC63CB-470 is determined by the following mandatory parameters:

• Inductance value of 47 µH with ±20% tolerance
• Shielded construction to maintain electromagnetic isolation
• Surface mount packaging for PCB integration
• Operating temperature range minimum of -40°C to 125°C
• RoHS3 compliance for regulatory alignment
• DC resistance within acceptable limits for circuit performance (218mOhm reference)
• Current rating sufficient for application requirements (1.34 A reference)

The three qualified substitutes—DR73-470-R, DR74-470-R, and DRA74-470-R—meet these core electrical and mechanical criteria. All substitutes maintain the 47 µH inductance specification, shielded construction, surface mount configuration, and RoHS3 compliance. Variations in current rating, saturation current, and DC resistance reflect different core materials and winding designs while preserving functional equivalence within the specified parameter bands.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts maintain Active product status and full RoHS3 compliance, ensuring regulatory alignment with the original SC63CB-470. Selection between substitutes depends on specific circuit requirements:

DR73-470-R presents the lowest current rating at 1.08 A, suitable for applications where the SC63CB-470's 1.34 A rating exceeds design requirements. This part offers the smallest footprint among substitutes at 0.140" seated height.

DR74-470-R provides 1.15 A current rating with the lowest DC resistance at 216mOhm, closely matching the original specification of 218mOhm. This part is recommended when DC resistance performance is critical to circuit efficiency.

DRA74-470-R extends the operating temperature range to -40°C ~ 165°C and includes AEC-Q200 automotive qualification. This part is specified for applications requiring enhanced thermal performance or automotive-grade reliability. The seated height of 0.171" matches DR74-470-R.

All substitutes exceed the original saturation current specification, providing improved headroom for transient current conditions. Footprint differences require PCB layout verification before implementation.

Frequently Asked Questions (FAQ)

Q: Can DR73-470-R replace SC63CB-470 in all applications?

A: DR73-470-R is electrically equivalent for inductance and DC resistance but has a reduced current rating of 1.08 A compared to 1.34 A. Substitution is valid only when circuit peak current does not exceed 1.08 A. Verify saturation current requirements; DR73-470-R provides 1.14A saturation versus 680mA for the original part.

Q: What are the footprint differences between the main part and substitutes?

A: The SC63CB-470 measures 6.30mm x 6.20mm with 4.60mm seated height. All three substitutes measure 7.60mm x 7.60mm. DR73-470-R has 4.65mm seated height, while DR74-470-R and DRA74-470-R have 4.35mm seated height. PCB layout must accommodate these dimensional changes.

Q: Which substitute is recommended for high-temperature applications?

A: DRA74-470-R extends the operating temperature range to 165°C and carries AEC-Q200 automotive qualification. This part is specified for applications requiring operation above 125°C or automotive-grade reliability standards.

Q: Are all substitutes RoHS3 compliant?

A: Yes. SC63CB-470, DR73-470-R, DR74-470-R, and DRA74-470-R are all ROHS3 compliant with MSL rating of 1 (Unlimited), ensuring regulatory alignment and identical moisture handling requirements.

Q: How do DC resistance values compare across all parts?

A: SC63CB-470 specifies 218mOhm maximum. DR73-470-R is 241mOhm, DR74-470-R is 216mOhm, and DRA74-470-R is 219mOhm. DR74-470-R provides the closest match to the original specification. Verify circuit power dissipation tolerance before selecting parts with higher DCR values.

Q: What is the significance of saturation current differences?

A: Saturation current indicates the current level at which inductance begins to degrade. SC63CB-470 saturates at 680mA, while all substitutes saturate at higher levels (1.08A to 1.41A). This provides improved transient current handling in substitutes but does not change the nominal operating current rating.