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

Part Overview

The KEMET SC-02-20G is a 2 mH through-hole common mode choke designed for power line filtering applications. This component operates at 2A maximum current with 70 mOhm DC resistance and is rated for 250V DC/AC operation across an extended temperature range of -40°C to 105°C. The part maintains Active product status and is ROHS3 compliant.

Substitute parts are identified when equivalent electrical performance can be achieved within the SC-02 series while maintaining compatibility with through-hole mounting requirements and core voltage/temperature specifications.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	SC-02-20G	—
Manufacturer	KEMET	—
Series	SC-G	—
Filter Type	Power Line	—
Number of Lines	2	—
Inductance @ 100 kHz	2	mH
Current Rating (Max)	2	A
DC Resistance (Max)	70	mOhm
Voltage Rating - DC	250	V
Voltage Rating - AC	250	V
Operating Temperature Range	-40 to 105	°C
Mounting Type	Through Hole	—
Package / Case	Vertical, No Base, 4 PC Pin	—
RoHS Status	ROHS3 Compliant	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitute parts within the KEMET SC-02 series are qualified based on the following criteria:

Mandatory Compatibility Parameters:

Manufacturer: KEMET
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 105°C
Mounting Type: Through Hole
Package / Case: Vertical, No Base, 4 PC Pin
RoHS Status: ROHS3 Compliant

Variable Parameters (Substitution Basis):

Inductance @ 100 kHz
DC Resistance (Max)
Physical Dimensions

The SC-02-20G can be substituted with SC-02-10GS or SC-02-D100 when circuit design permits variation in inductance value and DC resistance within the specified operating envelope. All substitute parts maintain identical voltage ratings, current capacity, temperature range, and mounting configuration.

Parameter Comparison

Parameter	SC-02-20G	SC-02-10GS	SC-02-D100
Inductance @ 100 kHz	2 mH	1 mH	100 µH
Current Rating (Max)	2 A	2 A	2 A
DC Resistance (Max)	70 mOhm	80 mOhm	70 mOhm
Voltage Rating - DC	250 V	250 V	250 V
Voltage Rating - AC	250 V	250 V	250 V
Operating Temperature Range	-40°C to 105°C	-40°C to 105°C	-40°C to 105°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Vertical, No Base, 4 PC Pin	Vertical, No Base, 4 PC Pin	Vertical, No Base, 4 PC Pin
Height (Max)	0.689" (17.50 mm)	0.591" (15.00 mm)	0.906" (23.00 mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts maintain Active product status and ROHS3 compliance, ensuring continued availability and regulatory alignment. Selection between SC-02-20G, SC-02-10GS, and SC-02-D100 is determined by circuit inductance requirements:

SC-02-20G (2 mH): Primary selection for applications requiring maximum inductance filtering at 2A current capacity.

SC-02-10GS (1 mH): Suitable for applications tolerating half the inductance value with marginally increased DC resistance (80 mOhm vs. 70 mOhm) and reduced physical height (15.00 mm vs. 17.50 mm).

SC-02-D100 (100 µH): Applicable for applications requiring minimal inductance filtering with identical DC resistance (70 mOhm) but increased physical height (23.00 mm vs. 17.50 mm).

All parts share identical voltage ratings (250V DC/AC), current capacity (2A), temperature range (-40°C to 105°C), and mounting configuration, ensuring PCB layout compatibility within the specified dimensional envelope.

Frequently Asked Questions (FAQ)

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

A: SC-02-10GS provides 1 mH inductance versus 2 mH in SC-02-20G. Substitution is valid only when circuit design permits half the inductance filtering. Both parts maintain identical 2A current rating, 250V voltage rating, and -40°C to 105°C operating range. DC resistance increases from 70 mOhm to 80 mOhm.

Q: What is the primary difference between SC-02-D100 and SC-02-20G?

A: SC-02-D100 provides 100 µH inductance compared to 2 mH in SC-02-20G. DC resistance remains at 70 mOhm for both parts. Physical height increases from 17.50 mm to 23.00 mm. All other electrical parameters remain identical.

Q: Are all three parts suitable for the same PCB footprint?

A: All three parts use identical through-hole mounting (Vertical, No Base, 4 PC Pin configuration). Physical heights differ: SC-02-10GS (15.00 mm), SC-02-20G (17.50 mm), and SC-02-D100 (23.00 mm). PCB layout must accommodate the maximum height of the selected part.

Q: Do all substitute parts maintain the same compliance certifications?

A: Yes. SC-02-20G, SC-02-10GS, and SC-02-D100 are all ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. All parts maintain Active product status.

Q: What determines whether a part qualifies as a substitute?

A: Substitution within the SC-02 series requires matching: 2-line configuration, 2A current rating, 250V DC/AC voltage rating, -40°C to 105°C operating temperature, through-hole mounting, and ROHS3 compliance. Inductance value and DC resistance are variable parameters that define specific part selection based on circuit requirements.

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