SC-15-200 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The KEMET SC-15-200 is a 2 mH common mode choke (CMC) rated for 15A maximum current with 12 mOhm DC resistance. This through-hole mounted component operates across a temperature range of -40°C to 105°C and is designed for power line filtering applications in two-line configurations. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement in circuit applications while maintaining performance specifications.

Key Parameters

Parameter	SC-15-200 Specification
Inductance @ Frequency	2 mH @ 100 kHz
Current Rating (Max)	15A
DC Resistance (DCR) (Max)	12 mOhm
Voltage Rating - DC	250V
Voltage Rating - AC	250V
Operating Temperature	-40°C ~ 105°C
Number of Lines	2
Mounting Type	Through Hole
Package / Case	Horizontal, No Base, 4 PC Pin
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SC-15-200 are qualified based on the following allowed parameters:

Primary Substitution Criteria:

Filter Type: Power Line
Number of Lines: 2
Mounting Type: Through Hole
Voltage Rating - DC: 250V
Voltage Rating - AC: 250V
Operating Temperature Range: -40°C ~ 105°C
Package / Case: Horizontal, No Base, 4 PC Pin
RoHS Status: ROHS3 Compliant

Secondary Substitution Parameters (with allowable variance):

Inductance @ Frequency: 1 mH to 2.3 mH range
Current Rating (Max): 15A or higher
DC Resistance (DCR) (Max): 11 mOhm to 13 mOhm range

Parts SC-15-100, SC-15-230, and SC-18-180 meet the core substitution criteria. Variations in inductance value, current rating, and DCR are within acceptable engineering tolerances for common mode choke applications where the primary filtering function and electrical safety parameters remain constant.

Parameter Comparison

Parameter	SC-15-200	SC-15-100	SC-15-230	SC-18-180
Inductance @ Frequency	2 mH @ 100 kHz	1 mH @ 100 kHz	2.3 mH @ 100 kHz	1.8 mH @ 1 kHz
Current Rating (Max)	15A	15A	15A	18A
DC Resistance (DCR) (Max)	12 mOhm	12 mOhm	13 mOhm	11 mOhm
Voltage Rating - DC	250V	250V	250V	250V
Voltage Rating - AC	250V	250V	250V	250V
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Number of Lines	2	2	2	2
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Horizontal, No Base, 4 PC Pin	Horizontal, No Base, 4 PC Pin	Horizontal, No Base, 4 PC Pin	Horizontal, No Base, 4 PC Pin
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts (SC-15-100, SC-15-230, SC-18-180) maintain Active product status and ROHS3 compliance, ensuring continued availability and regulatory alignment with the original SC-15-200 specification.

SC-15-100 Selection: Lower inductance value (1 mH) with identical current rating (15A) and DCR (12 mOhm). Suitable for applications requiring reduced filtering inductance while maintaining electrical safety parameters.

SC-15-230 Selection: Higher inductance value (2.3 mH) with identical current rating (15A) and marginally increased DCR (13 mOhm). Suitable for applications requiring enhanced filtering performance within the same current envelope.

SC-18-180 Selection: Intermediate inductance value (1.8 mH) with elevated current rating (18A) and reduced DCR (11 mOhm). Suitable for applications requiring higher current capacity or lower insertion loss while maintaining filtering function.

All parts share identical voltage ratings (250V DC/AC), operating temperature range (-40°C to 105°C), and mechanical form factor (Horizontal, No Base, 4 PC Pin through-hole package).

Frequently Asked Questions (FAQ)

Q: Can SC-15-100 replace SC-15-200 in all applications?

A: SC-15-100 provides lower inductance (1 mH versus 2 mH). Substitution is valid where the reduced filtering inductance meets circuit requirements. Both parts maintain identical current rating (15A), DC resistance (12 mOhm), voltage ratings (250V), and operating temperature range (-40°C to 105°C).

Q: What is the difference between SC-15-230 and SC-15-200?

A: SC-15-230 provides higher inductance (2.3 mH versus 2 mH) with marginally increased DCR (13 mOhm versus 12 mOhm). Current rating (15A) and voltage ratings (250V) remain identical. Substitution is valid where increased filtering inductance is acceptable.

Q: Why does SC-18-180 have a different inductance measurement frequency?

A: SC-18-180 specifies inductance at 1 kHz while SC-15-200 specifies at 100 kHz. Both parts operate across the same voltage and temperature ranges. The inductance value (1.8 mH) falls within the acceptable range for common mode choke substitution. SC-18-180 offers higher current capacity (18A) and lower DCR (11 mOhm).

Q: Are all substitute parts through-hole mounted?

A: Yes. SC-15-100, SC-15-230, and SC-18-180 all use through-hole mounting with identical package configuration (Horizontal, No Base, 4 PC Pin).

Q: Do substitute parts meet the same compliance standards?

A: Yes. All substitute parts are ROHS3 compliant and maintain Active product status, matching the regulatory and availability profile of SC-15-200.

Q: What is the maximum current difference between SC-15-200 and SC-18-180?

A: SC-18-180 is rated for 18A maximum current compared to 15A for SC-15-200. This higher rating allows substitution in applications requiring increased current capacity while maintaining all other electrical and mechanical specifications.

Q: Can physical dimensions affect substitution?

A: SC-15-200 has a diameter of 1.969" (50.00 mm) and height of 1.102" (28.00 mm). SC-15-100 has slightly smaller dimensions (1.929" diameter, 1.063" height). SC-15-230 and SC-18-180 match SC-15-200 diameter but have increased height (1.181"). All parts use identical through-hole pin configuration and horizontal mounting orientation.

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