SC63CB-680 Equivalent & Substitute Parts

Part Overview

The SC63CB-680 is a 68 µH shielded inductor manufactured by Signal Transformer, designed for surface mount applications. This component delivers 1.02 A current rating with 333mOhm maximum DC resistance and operates across the -40°C to 125°C temperature range. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory compliance can be maintained within the specified parameter tolerances.

Substiute Parts

SC63CB-680

Signal TransformerIn Stock: 689SC63CB-680 Datasheet

Current PartRFQ

DR74-680-R

Eaton - Electronics DivisionIn Stock: 2277DR74-680-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC63CB-680 is determined by strict equivalence across the following critical parameters:

• Inductance value of 68 µH within ±20% tolerance
• Current rating minimum of 1.02 A
• DC resistance not exceeding 333mOhm
• Shielded construction for electromagnetic containment
• Surface mount packaging in Tape & Reel format
• Operating temperature range of -40°C to 125°C
• ROHS3 compliance and unlimited MSL rating

The DR74-680-R from Eaton - Electronics Division meets these substitution criteria with equivalent electrical specifications and regulatory certifications.

Parameter Comparison

Engineering Selection Recommendations

The DR74-680-R qualifies as a direct substitute for the SC63CB-680 based on electrical parameter equivalence and regulatory compliance alignment. Both components maintain ROHS3 certification, unlimited moisture sensitivity rating, and identical operating temperature specifications. The DR74-680-R demonstrates improved performance characteristics with lower DC resistance (265mOhm versus 333mOhm) and higher saturation current (1.19A versus 560mA), providing enhanced thermal stability and current handling capacity. Both parts are Active status products with established supply availability. Physical dimensions differ slightly (DR74-680-R: 7.60mm x 7.60mm x 4.35mm versus SC63CB-680: 6.30mm x 6.20mm x 4.60mm), requiring verification of PCB layout constraints prior to implementation.

Frequently Asked Questions (FAQ)

Q: What electrical parameters determine substitution eligibility between SC63CB-680 and DR74-680-R?

A: The primary substitution criteria are inductance value (68 µH ±20%), current rating (minimum 1.02 A), DC resistance (maximum 333mOhm), and shielded construction. Both parts meet these specifications with equivalent or superior performance.

Q: Are there physical compatibility considerations when substituting DR74-680-R for SC63CB-680?

A: Yes. The DR74-680-R has larger footprint dimensions (7.60mm x 7.60mm x 4.35mm) compared to the SC63CB-680 (6.30mm x 6.20mm x 4.60mm). PCB layout and component spacing must be verified before substitution.

Q: Do both parts maintain identical regulatory compliance?

A: Both SC63CB-680 and DR74-680-R are ROHS3 compliant, REACH unaffected, and carry unlimited moisture sensitivity rating (MSL 1). Regulatory requirements are equivalent.

Q: What is the inductance tolerance for both parts?

A: Both the SC63CB-680 and DR74-680-R maintain ±20% inductance tolerance, measured at 100 kHz test frequency.

Q: How do the DC resistance specifications compare?

A: The SC63CB-680 specifies 333mOhm maximum DC resistance, while the DR74-680-R provides 265mOhm. The DR74-680-R offers lower resistance, resulting in reduced power dissipation in equivalent current conditions.