SC63LCB-101 Equivalent & Substitute Parts

Part Overview

The SC63LCB-101 is a 100 µH shielded inductor manufactured by Signal Transformer, rated for 800 mA continuous current with a maximum DC resistance of 519 mOhm. This surface mount component operates across the industrial temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 1112 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, supply chain continuity, or application-specific requirements.

Substiute Parts

SC63LCB-101

Signal TransformerIn Stock: 1193SC63LCB-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 SC63LCB-101 are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 100 µH ±20% tolerance
• Current rating: minimum 800 mA continuous
• Shielding: shielded construction required
• Mounting: surface mount configuration
• Operating temperature: minimum -40°C to 125°C range
• RoHS compliance: ROHS3 compliant

Identified Substitutes:

• DR74-101-R (Eaton - Electronics Division): Meets all primary criteria with 860 mA rating and 383 mOhm DCR
• DRA74-101-R (Eaton - Electronics Division): Meets all primary criteria with 822 mA rating, 419 mOhm DCR, and extended temperature range to 165°C with AEC-Q200 rating

Both substitute parts maintain the 100 µH inductance specification, shielded construction, surface mount packaging, and ROHS3 compliance required for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Both DR74-101-R and DRA74-101-R are qualified substitutes for the SC63LCB-101 based on electrical parameter equivalence and compliance certifications.

DR74-101-R Selection Criteria:

• Identical operating temperature range (-40°C to 125°C)
• Lower DC resistance (383 mOhm vs. 519 mOhm) reduces thermal dissipation
• Higher saturation current (990 mA) provides additional margin
• Drum core, wirewound construction with ferrite core material
• Standard packaging in Tape & Reel format

DRA74-101-R Selection Criteria:

• Extended operating temperature range (-40°C to 165°C) for high-temperature applications
• AEC-Q200 automotive qualification rating
• DC resistance of 419 mOhm provides intermediate performance
• Wirewound construction
• Higher saturation current (929 mA) exceeds base requirement
• Standard packaging in Tape & Reel format

Both parts are active products with established inventory levels. Selection between substitutes depends on application temperature requirements and automotive qualification needs.

Frequently Asked Questions (FAQ)

Q: Can DR74-101-R or DRA74-101-R be used as direct replacements for SC63LCB-101?

A: Yes. Both parts meet the core electrical specifications: 100 µH inductance at ±20% tolerance, current ratings exceeding 800 mA, shielded construction, surface mount configuration, and ROHS3 compliance. Physical dimensions differ slightly (7.60mm x 7.60mm x 4.35mm for Eaton parts vs. 6.30mm x 6.20mm x 3.00mm for Signal Transformer), requiring PCB layout verification.

Q: What are the DC resistance differences and their impact?

A: SC63LCB-101 specifies 519 mOhm maximum. DR74-101-R provides 383 mOhm (26% lower), and DRA74-101-R provides 419 mOhm (19% lower). Lower resistance reduces I²R losses and thermal dissipation, beneficial for high-current applications.

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

A: DRA74-101-R supports -40°C to 165°C, extending 40°C above the SC63LCB-101 and DR74-101-R specifications. DRA74-101-R also carries AEC-Q200 automotive qualification.

Q: Are packaging differences significant?

A: Yes. SC63LCB-101 uses nonstandard packaging (6.30mm x 6.20mm x 3.00mm), while both Eaton substitutes use nonstandard packaging (7.60mm x 7.60mm x 4.35mm). PCB footprint and height clearance must be verified before substitution.

Q: Do all parts meet compliance requirements?

A: All three parts are ROHS3 compliant with MSL rating 1 (unlimited moisture sensitivity). REACH status is unaffected for all parts. DRA74-101-R additionally carries AEC-Q200 certification.