KEMET SC-15-07J Common Mode Choke Equivalent & Substitute Parts

Part Overview

The KEMET SC-15-07J is a 702 µH @ 100 kHz, 2-line common mode choke designed for power line filtering applications in through-hole configurations. This component operates at 15A maximum current with 10mOhm DC resistance and is rated for 250V DC/AC operation across an operating temperature range of -40°C to 120°C. The part is Active status and ROHS3 compliant, making it suitable for modern electronic equipment requiring EMI suppression in power distribution circuits.

Substitute parts become necessary when inventory constraints exist, when design specifications allow for higher current ratings or different inductance values, or when alternative mechanical packaging better suits assembly requirements.

Substiute Parts

SC-15-07J

KEMETIn Stock: 1208SC-15-07J Datasheet

Current PartRFQ

SC-18-E12J

KEMETIn Stock: 839SC-18-E12J Datasheet

Parametric EquivalentRFQ

SC-18-E15J

KEMETIn Stock: 829SC-18-E15J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC-15-07J are qualified based on the following criteria:

• Same series designation (SC-J) ensuring mechanical and electrical compatibility within the product family
• Same mounting type (Through Hole) and package configuration (Vertical, 4 PC Pin)
• Same number of lines (2-line common mode choke configuration)
• Same voltage ratings (250V DC/AC minimum)
• Same operating temperature range (-40°C ~ 120°C)
• Same filter type classification (Power Line)
• Active product status with current manufacturing availability
• ROHS3 compliance and REACH unaffected status maintained

The substitute parts SC-18-E12J and SC-18-E15J differ from the main part in inductance value, frequency specification, current rating, and DC resistance. These differences are acceptable substitutions when circuit design specifications permit higher current handling capability and alternative inductance characteristics.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status with current manufacturing availability. SC-18-E12J and SC-18-E15J are suitable substitutes when circuit requirements permit higher current ratings (18A versus 15A) and when inductance values of 1.2 mH or 1.5 mH at 10 kHz are acceptable alternatives to the 702 µH @ 100 kHz specification of the SC-15-07J.

Both substitute parts offer improved DC resistance characteristics (9mOhm and 8mOhm respectively versus 10mOhm), reducing power dissipation in applications where this parameter is critical. All parts maintain identical voltage ratings, operating temperature ranges, and compliance certifications (ROHS3, REACH Unaffected).

Selection between SC-18-E12J and SC-18-E15J depends on specific inductance requirements: SC-18-E12J provides 1.2 mH inductance, while SC-18-E15J provides 1.5 mH inductance. Both are rated for 18A operation.

Frequently Asked Questions (FAQ)

Q: Can SC-18-E12J or SC-18-E15J be used as direct replacements for SC-15-07J?

A: These parts are parametric equivalents within the SC-J series, sharing identical mounting type, package configuration, voltage ratings, and operating temperature range. However, they differ in inductance value and current rating. Substitution is valid only when circuit design specifications accommodate the higher current rating (18A) and alternative inductance characteristics (1.2 mH or 1.5 mH @ 10 kHz).

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

A: SC-15-07J measures 1.417" L x 0.984" W x 1.378" H (36.00mm x 25.00mm x 35.00mm). SC-18-E12J measures 1.969" L x 1.220" W x 1.969" H (50.00mm x 31.00mm x 50.00mm). SC-18-E15J measures 1.732" L x 1.181" W x 1.732" H (44.00mm x 30.00mm x 44.00mm). Physical layout constraints may affect substitution feasibility.

Q: Are all three parts ROHS3 compliant?

A: Yes. SC-15-07J, SC-18-E12J, and SC-18-E15J are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the difference in DC resistance between these parts?

A: SC-15-07J has 10mOhm maximum DC resistance. SC-18-E12J has 9mOhm maximum DC resistance. SC-18-E15J has 8mOhm maximum DC resistance. Lower DC resistance reduces power dissipation and heat generation in the component.

Q: Can these parts be used interchangeably in the same PCB layout?

A: No. Physical dimensions differ significantly between parts. PCB layout modifications are required to accommodate the larger footprints of SC-18-E12J and SC-18-E15J. Verify mounting hole spacing and clearance requirements before substitution.