SC-15-12J-MI Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SC-15-12J-MI is a 2-line common mode choke manufactured by KEMET, designed for power line filtering applications. This through-hole component operates at 1.2 mH inductance @ 10 kHz with a maximum current rating of 15A and DC resistance of 6.2 mOhm. The part is ROHS3 compliant and maintains active product status. Substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and operational parameters within the SC-J series.

Substiute Parts

SC-15-12J-MI

KEMETIn Stock: 1235SC-15-12J-MI Datasheet

Current PartRFQ

SC-15-02J

KEMETIn Stock: 1281SC-15-02J Datasheet

Parametric EquivalentRFQ

SC-18-085J

KEMETIn Stock: 1237SC-18-085J Datasheet

Parametric EquivalentRFQ

SC-18-095J

KEMETIn Stock: 1165SC-18-095J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC-15-12J-MI are selected based on the following criteria:

Common Substitution Parameters:

• Manufacturer: KEMET (same manufacturer ensures design consistency)
• Series: SC-J (same product family)
• Filter Type: Power Line (identical application)
• Number of Lines: 2 (same configuration)
• Mounting Type: Through Hole (same mechanical interface)
• Voltage Rating: 250V DC / 250V AC (same electrical environment)
• Operating Temperature: -40°C ~ 120°C (same thermal range)
• Package / Case: Vertical, 4 PC Pin (same footprint and pin configuration)
• RoHS Status: ROHS3 Compliant (same regulatory compliance)

Variable Parameters Allowing Substitution:

• Inductance @ Frequency (different values at specified frequencies)
• Current Rating (15A to 18A range)
• DC Resistance (6.0 mOhm to 6.2 mOhm range)
• Physical Dimensions (minor variations within acceptable limits)

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the SC-15-12J-MI. Selection between substitutes depends on circuit inductance requirements and current capacity constraints.

SC-15-02J operates at lower inductance (200 µH @ 100 kHz) compared to the main part and maintains identical 15A current rating. This part is suitable for applications requiring reduced inductance filtering at higher frequencies.

SC-18-085J and SC-18-095J provide higher current capacity (18A) with inductance values between 850 µH and 950 µH @ 10 kHz. These parts accommodate circuits with increased current demands while maintaining similar inductance characteristics to the main part. SC-18-095J offers marginally lower DC resistance (5.5 mOhm) compared to SC-18-085J (6.0 mOhm).

All substitute parts share identical voltage ratings, operating temperature range, and mechanical mounting specifications with the SC-15-12J-MI, ensuring direct compatibility within the same circuit board layout.

Frequently Asked Questions (FAQ)

Q: Can SC-15-02J replace SC-15-12J-MI in all applications?

A: SC-15-02J is a direct mechanical and electrical substitute with identical current rating (15A) and voltage specifications. However, inductance differs significantly (200 µH @ 100 kHz versus 1.2 mH @ 10 kHz). Substitution is valid only if circuit design tolerates the lower inductance value.

Q: What is the primary difference between SC-18-085J and SC-18-095J?

A: Both parts share identical current rating (18A), voltage ratings, and physical dimensions. The primary differences are inductance (850 µH versus 950 µH @ 10 kHz) and DC resistance (6.0 mOhm versus 5.5 mOhm). Selection depends on specific inductance and power dissipation requirements.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts maintain identical mounting type (through hole), package configuration (vertical, 4 PC pin), and compatible physical dimensions within the SC-J series. Direct PCB layout compatibility is maintained.

Q: Can I use an 18A-rated part (SC-18-085J or SC-18-095J) in place of the 15A-rated SC-15-12J-MI?

A: Yes. Higher current rating provides additional design margin. The 18A parts are electrically and mechanically compatible with circuits designed for 15A operation, provided inductance values meet circuit requirements.

Q: Do all substitute parts meet the same regulatory standards?

A: Yes. All listed substitute parts are ROHS3 compliant and maintain identical voltage ratings (250V DC / 250V AC) and operating temperature range (-40°C ~ 120°C), ensuring equivalent regulatory compliance.