KEMET SC-02-30G Common Mode Choke Equivalent & Substitute Parts

Part Overview

The KEMET SC-02-30G is a 3 mH @ 100 kHz, 2-line common mode choke designed for through-hole mounting in power line filtering applications. This component operates at 2A maximum current with 85 mOhm DC resistance and is rated for 250V DC/AC operation across the temperature range of -40°C to 105°C. The part is Active status and ROHS3 compliant, making it suitable for current production designs. Equivalent and substitute parts are identified based on matching electrical parameters (current rating, voltage rating, operating temperature, filter type, and mounting configuration) and mechanical compatibility within the SC-02 base product family.

Substiute Parts

SC-02-30G

KEMETIn Stock: 937SC-02-30G Datasheet

Current PartRFQ

SC-02-100

KEMETIn Stock: 1183SC-02-100 Datasheet

Parametric EquivalentRFQ

SC-02-10GS

KEMETIn Stock: 1967SC-02-10GS Datasheet

Parametric EquivalentRFQ

SC-02-20G

KEMETIn Stock: 1612SC-02-20G Datasheet

Parametric EquivalentRFQ

SC-02-300

KEMETIn Stock: 968SC-02-300 Datasheet

Parametric EquivalentRFQ

SC-02-500

KEMETIn Stock: 80922SC-02-500 Datasheet

Parametric EquivalentRFQ

SC-02-D100

KEMETIn Stock: 1421SC-02-D100 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC-02-30G are identified within the KEMET SC-02 base product family based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

• Current Rating (Max): 2A
• Voltage Rating - DC: 250V
• Voltage Rating - AC: 250V
• Operating Temperature: -40°C ~ 105°C
• Filter Type: Power Line
• Number of Lines: 2
• Mounting Type: Through Hole
• Package / Case: Vertical, No Base, 4 PC Pin

Variable Parameters (Inductance and DCR): Inductance values and DC resistance vary across the substitute parts. Selection depends on circuit requirements for filtering frequency response and power dissipation tolerance. All substitute parts maintain the same current and voltage ratings, ensuring electrical compatibility in the same application slot.

Identified Substitute Parts:

• SC-02-10GS (1 mH @ 100 kHz, 80 mOhm DCR)
• SC-02-100 (1 mH @ 100 kHz, 100 mOhm DCR)
• SC-02-20G (2 mH @ 100 kHz, 70 mOhm DCR)
• SC-02-300 (3 mH @ 100 kHz, 100 mOhm DCR)
• SC-02-500 (5 mH @ 100 kHz, 100 mOhm DCR)
• SC-02-D100 (100 µH @ 100 kHz, 70 mOhm DCR)

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are Active status products with ROHS3 compliance and REACH Unaffected designation, meeting current regulatory requirements for production use. Selection among substitutes is determined by circuit-specific inductance and DCR requirements:

For Lower Inductance Requirements (1 mH): SC-02-10GS offers the lowest DCR at 80 mOhm with compact dimensions (15.00mm height). SC-02-100 provides the same inductance with higher DCR (100 mOhm) and larger footprint (23.00mm height).

For Intermediate Inductance (2 mH): SC-02-20G matches the physical dimensions of the main part (17.50mm height) with reduced DCR (70 mOhm).

For Same Inductance (3 mH): SC-02-300 provides identical inductance with higher DCR (100 mOhm) and larger dimensions (27.00mm height).

For Higher Inductance (5 mH): SC-02-500 offers increased filtering capability with 100 mOhm DCR and larger footprint (27.00mm height). This part has the highest inventory availability (80,900 pcs).

For Lower Inductance (100 µH): SC-02-D100 provides minimal inductance with low DCR (70 mOhm) and intermediate dimensions (23.00mm height).

All parts maintain identical current and voltage ratings, operating temperature range, and mounting configuration, ensuring direct electrical compatibility within the same circuit application slot.

Frequently Asked Questions (FAQ)

Q: Can SC-02-30G be directly replaced with SC-02-300?

A: Both parts share identical inductance (3 mH @ 100 kHz) and current rating (2A). SC-02-300 has higher DCR (100 mOhm vs. 85 mOhm) and larger physical dimensions (27.00mm height vs. 17.50mm height). Direct replacement is electrically compatible but requires verification of available PCB space and acceptable power dissipation increase.

Q: What is the difference between SC-02-10GS and SC-02-100?

A: Both provide 1 mH inductance at 100 kHz and 2A current rating. SC-02-10GS has lower DCR (80 mOhm vs. 100 mOhm) and smaller dimensions (15.00mm height vs. 23.00mm height). SC-02-100 occupies more board space but is available in higher quantity (1083 pcs vs. 1866 pcs).

Q: Is SC-02-500 suitable as a substitute for SC-02-30G?

A: SC-02-500 maintains all critical electrical parameters (2A current, 250V rating, -40°C to 105°C operation) but provides higher inductance (5 mH vs. 3 mH). Use only if circuit design requires increased filtering at the higher inductance value. Physical dimensions are larger (27.00mm height).

Q: What does DCR variation mean for circuit performance?

A: DC Resistance (DCR) determines power dissipation in the component. Lower DCR (70-80 mOhm) generates less heat; higher DCR (100 mOhm) generates more heat. Selection depends on thermal budget and efficiency requirements. All listed parts operate within the same temperature range (-40°C to 105°C).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed (SC-02-30G, SC-02-10GS, SC-02-100, SC-02-20G, SC-02-300, SC-02-500, SC-02-D100) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Can I use SC-02-D100 (100 µH) in place of SC-02-30G (3 mH)?

A: No. SC-02-D100 provides significantly lower inductance (100 µH vs. 3 mH), resulting in different filtering characteristics. Use only if circuit design specifically requires 100 µH inductance. All other electrical parameters (current, voltage, temperature) are compatible.

Q: What is the physical footprint difference between SC-02-30G and SC-02-500?

A: SC-02-30G dimensions are 17.50mm diameter x 14.00mm width with 17.50mm height. SC-02-500 dimensions are 27.00mm diameter x 20.00mm width with 27.00mm height. SC-02-500 requires significantly more PCB space.

Q: Which substitute has the best availability?

A: SC-02-500 has the highest inventory (80,900 pcs), followed by SC-02-10GS (1866 pcs) and SC-02-20G (1557 pcs). SC-02-300 and SC-02-100 have lower availability (884 and 1083 pcs respectively).