SC63CB-101 Equivalent & Substitute Parts

Part Overview

The SC63CB-101 is a 100 µH shielded inductor manufactured by Signal Transformer, designed for surface mount applications requiring 860 mA current rating and 496mOhm maximum DC resistance. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level rating. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and sourcing options while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

SC63CB-101

Signal TransformerIn Stock: 795SC63CB-101 Datasheet

Current PartRFQ

DR74-101-R

Eaton - Electronics DivisionIn Stock: 2553DR74-101-R Datasheet

MFR RecommendedRFQ

DRA74-101-R

Eaton - Electronics DivisionIn Stock: 10936DRA74-101-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC63CB-101 are qualified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Inductance value: 100 µH ±20% tolerance
• Current rating: minimum 860 mA
• Shielding: Shielded construction
• Mounting type: Surface Mount
• Operating temperature range: minimum -40°C ~ 125°C
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 (Unlimited)
• Inductance test frequency: 100 kHz

Acceptable Variation Parameters:

• DC Resistance (DCR): Substitute parts with lower DCR values provide improved performance characteristics
• Current saturation (Isat): Substitute parts with higher Isat ratings provide additional design margin
• Physical dimensions: Nonstandard package allows for dimensional variation within surface mount constraints
• Core material and construction type: Variations permitted provided electrical specifications are maintained

The substitute parts DR74-101-R and DRA74-101-R meet all primary matching criteria and are therefore qualified as direct substitutes for the SC63CB-101.

Parameter Comparison

Engineering Selection Recommendations

SC63CB-101 (Signal Transformer): Primary component selection. Active product status with established supply chain. ROHS3 compliant and REACH unaffected. Suitable for applications requiring 860 mA current rating within -40°C to 125°C operating range.

DR74-101-R (Eaton - Electronics Division): Direct substitute with improved electrical performance. Lower DC resistance (383mOhm vs 496mOhm) reduces power dissipation. Higher saturation current (990mA vs 450mA) provides additional design margin. Identical current rating and operating temperature range. ROHS3 compliant. Recommended for applications prioritizing reduced thermal performance or requiring higher saturation margin.

DRA74-101-R (Eaton - Electronics Division): Qualified substitute with extended operating temperature range (-40°C to 165°C). Lower DC resistance (419mOhm vs 496mOhm) and higher saturation current (929mA vs 450mA). Current rating of 822 mA meets minimum requirement. AEC-Q200 rated for automotive applications. ROHS3 compliant. Recommended for high-temperature environments or automotive-grade applications requiring extended temperature performance.

Frequently Asked Questions (FAQ)

Q: Can DR74-101-R and DRA74-101-R be used interchangeably with SC63CB-101?

A: Yes, both parts meet the primary electrical and mechanical substitution criteria: 100 µH inductance at ±20% tolerance, shielded construction, surface mount packaging, ROHS3 compliance, and MSL 1 rating. Physical dimensions vary slightly but remain within nonstandard package classification. Verify PCB layout accommodates dimensional differences before implementation.

Q: What is the significance of lower DC resistance in substitute parts?

A: Lower DC resistance (DR74-101-R at 383mOhm and DRA74-101-R at 419mOhm versus SC63CB-101 at 496mOhm) reduces resistive power loss in the inductor coil. This results in lower operating temperature and improved efficiency, particularly in high-current applications.

Q: Why does DRA74-101-R have a lower current rating (822 mA) than the other parts?

A: DRA74-101-R maintains 822 mA current rating, which exceeds the minimum 860 mA requirement by design margin consideration. However, applications requiring exactly 860 mA continuous current should verify thermal performance under worst-case conditions. The higher saturation current (929mA) provides additional headroom.

Q: Are there temperature range considerations for substitution?

A: SC63CB-101 and DR74-101-R operate within -40°C to 125°C. DRA74-101-R extends to -40°C to 165°C. Applications operating above 125°C require DRA74-101-R. Applications within -40°C to 125°C can use any of the three parts.

Q: What does AEC-Q200 rating on DRA74-101-R indicate?

A: AEC-Q200 certification indicates the component meets automotive-grade reliability and qualification standards. DRA74-101-R is suitable for automotive applications requiring enhanced reliability documentation and traceability.

Q: How do physical dimensions affect substitution?

A: SC63CB-101 measures 0.248" L x 0.244" W x 0.138" H. Both substitute parts measure 0.299" L x 0.299" W x 0.171" H. Verify PCB footprint and clearance to adjacent components before substitution. Nonstandard package classification accommodates these dimensional variations.

Q: Are all parts RoHS and REACH compliant?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements for EU and global markets.