SC63CB-100 Equivalent & Substitute Parts

Part Overview

The SC63CB-100 is a 10 µH shielded inductor manufactured by Signal Transformer, rated for 2.56 A continuous current with a maximum DC resistance of 50mOhm. 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 903 units in stock. Substitute parts are necessary to address supply chain continuity, inventory availability, or specific application requirements where alternative electrical or mechanical characteristics are acceptable within design tolerances.

Substiute Parts

SC63CB-100

Signal TransformerIn Stock: 980SC63CB-100 Datasheet

Current PartRFQ

DR74-100-R

Eaton - Electronics DivisionIn Stock: 2072DR74-100-R Datasheet

MFR RecommendedRFQ

DRA74-100-R

Eaton - Electronics DivisionIn Stock: 3436DRA74-100-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC63CB-100 is determined by the following critical parameters:

• Inductance Value: Must be 10 µH with ±20% tolerance
• Current Rating: Minimum 2.56 A continuous current capability
• DC Resistance: Maximum 50mOhm to maintain thermal and efficiency characteristics
• Shielding: Must be shielded to prevent electromagnetic interference
• Mounting Type: Surface mount configuration required
• Operating Temperature: Minimum -40°C to 125°C range
• RoHS Compliance: ROHS3 compliant status required

The two substitute parts listed below meet these core electrical and mechanical requirements while maintaining compatibility with the original design specifications.

Parameter Comparison

Engineering Selection Recommendations

DRA74-100-R is the primary substitute option. This part matches the SC63CB-100 in current rating (2.56 A) and provides superior DC resistance performance at 43mOhm, which is 14% lower than the maximum specification. The extended operating temperature range to 165°C provides additional thermal margin. AEC-Q200 automotive qualification rating indicates enhanced reliability validation. All RoHS3 and moisture sensitivity requirements are met.

DR74-100-R is an alternative substitute where current rating tolerance of 2.41 A is acceptable. This part delivers DC resistance of 48.9mOhm, within specification limits, and maintains full compliance with environmental and regulatory requirements. The higher saturation current (3.17 A) provides additional design margin in applications sensitive to core saturation.

Both substitutes maintain active product status, ensuring long-term availability and supply chain stability. All parts are ROHS3 compliant and carry unlimited moisture sensitivity classification, eliminating bake-out requirements for standard storage and handling conditions.

Frequently Asked Questions (FAQ)

Q: Can DR74-100-R be used as a direct replacement for SC63CB-100?

A: DR74-100-R meets the core electrical specifications with 10 µH inductance and ±20% tolerance. However, the current rating is 2.41 A versus 2.56 A on the original part. This substitute is suitable for applications where the design current does not exceed 2.41 A. The DC resistance of 48.9mOhm is within the 50mOhm maximum specification.

Q: What are the physical dimension differences between these parts?

A: SC63CB-100 measures 0.248" L x 0.244" W x 0.138" H (6.30mm x 6.20mm x 4.60mm). Both Eaton substitutes measure 0.299" L x 0.299" W (7.60mm x 7.60mm) with heights of 0.171" (DR74-100-R) and 0.140" (DRA74-100-R). PCB layout verification is required to confirm fit within available space.

Q: Are there temperature range limitations when substituting?

A: SC63CB-100 operates from -40°C to 125°C. DR74-100-R maintains this identical range. DRA74-100-R extends to -40°C to 165°C, providing additional thermal headroom. All three parts are suitable for standard industrial temperature applications.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. SC63CB-100, DR74-100-R, and DRA74-100-R are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity classification. DRA74-100-R additionally carries AEC-Q200 automotive qualification. REACH status is unaffected for all parts.

Q: What is the saturation current significance in selecting a substitute?

A: Saturation current (Isat) indicates the current level at which the inductor core begins to saturate and inductance degrades. SC63CB-100 has Isat of 1.49 A. DR74-100-R provides 3.17 A and DRA74-100-R provides 2.97 A. Higher saturation current values offer greater design margin in applications with transient current spikes or ripple current conditions.

Q: Which substitute offers the best DC resistance performance?

A: DRA74-100-R provides the lowest DC resistance at 43mOhm, representing a 14% improvement over the 50mOhm maximum specification. This reduces resistive losses and heat generation. DR74-100-R at 48.9mOhm also meets specification with minimal margin. Selection depends on thermal design requirements.