KEMET SC-02-20J Common Mode Choke Equivalent & Substitute Parts

Part Overview

The KEMET SC-02-20J is a 2 mH common mode choke (CMC) designed for power line filtering applications. This through-hole component operates at 2A maximum current with a 110 mOhm DC resistance and supports dual-line filtering in a compact vertical package. The part is Active status and ROHS3 compliant, making it suitable for current production designs requiring EMI suppression in power distribution circuits.

Substitute parts are identified when design requirements permit variation in inductance values while maintaining compatibility with the electrical and mechanical constraints of the application circuit.

Substiute Parts

SC-02-20J

KEMETIn Stock: 871SC-02-20J Datasheet

Current PartRFQ

SC-02-10J

KEMETIn Stock: 1712SC-02-10J Datasheet

Parametric EquivalentRFQ

SC-02-30GJ

KEMETIn Stock: 1410SC-02-30GJ Datasheet

Parametric EquivalentRFQ

SC-02-50J

KEMETIn Stock: 1184SC-02-50J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC-02-20J are identified within the KEMET SC-J series based on the following allowed parameters:

Fixed Parameters (Must Match):

• Manufacturer: KEMET
• Series: SC-J
• Filter Type: Power Line
• Number of Lines: 2
• Current Rating (Max): 2A
• Voltage Rating - DC: 250V
• Voltage Rating - AC: 250V
• Operating Temperature Range: -40°C to 120°C
• Mounting Type: Through Hole
• Package / Case: Vertical, 4 PC Pin
• RoHS Status: ROHS3 Compliant
• Product Status: Active

Variable Parameters (Allowed to Differ):

• Inductance @ 100 kHz: 1 mH, 2 mH, 3 mH, or 5 mH
• DC Resistance (Max): 100 mOhm to 120 mOhm
• Physical Dimensions: May vary with inductance value

The three substitute parts (SC-02-10J, SC-02-30GJ, SC-02-50J) maintain all fixed parameters while offering alternative inductance values. Selection depends on the specific filtering requirements of the application circuit.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain Active product status and ROHS3 compliance, ensuring continued availability and regulatory conformance for production designs.

SC-02-10J (1 mH): Lower inductance value with reduced DC resistance (100 mOhm). Suitable for applications requiring lower impedance or reduced filtering attenuation compared to the SC-02-20J.

SC-02-30GJ (3 mH): Higher inductance value with reduced DC resistance (100 mOhm) and smaller physical footprint (17.50 mm × 17.00 mm × 20.00 mm). Appropriate for applications with tighter PCB space constraints and requiring increased filtering effectiveness.

SC-02-50J (5 mH): Highest inductance value with slightly elevated DC resistance (120 mOhm). Provides maximum filtering attenuation for power line EMI suppression in applications tolerating higher impedance.

Selection among these parts depends solely on the inductance requirement of the circuit design and available PCB space for component placement.

Frequently Asked Questions (FAQ)

Q: Can SC-02-10J replace SC-02-20J in any application?

A: SC-02-10J is a substitute only if the application circuit design permits operation with 1 mH inductance instead of 2 mH. The lower inductance value reduces filtering effectiveness at the same frequency. Verify circuit performance requirements before substitution.

Q: What is the primary difference between SC-02-30GJ and other substitutes?

A: SC-02-30GJ has a smaller physical footprint (17.50 mm × 17.00 mm × 20.00 mm) compared to SC-02-20J, SC-02-10J, and SC-02-50J (25.00 mm × 20.00 mm × 27.00 mm). This makes SC-02-30GJ suitable for space-constrained PCB layouts while providing 3 mH inductance.

Q: Are all substitute parts pin-compatible with SC-02-20J?

A: All substitute parts use the same Vertical, 4 PC Pin package configuration and through-hole mounting type. Pin compatibility is maintained across all parts in this comparison.

Q: Does DC resistance variation affect part selection?

A: DC resistance values range from 100 mOhm to 120 mOhm across the substitute parts. Higher DC resistance increases power dissipation in the component. Select based on thermal and efficiency requirements of the application circuit.

Q: Are temperature and voltage ratings identical across all parts?

A: Yes. All parts operate across -40°C to 120°C and support 250V DC and 250V AC ratings. These parameters are fixed across the SC-J series substitutes.

Q: What inventory levels are available for each part?

A: SC-02-20J: 802 Pcs; SC-02-10J: 1602 Pcs; SC-02-30GJ: 1313 Pcs; SC-02-50J: 1161 Pcs. Inventory status reflects current stock of new original components.