SC-05-300 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SC-05-300 is a 3 mH @ 100 kHz, 2-line common mode choke manufactured by KEMET, designed for power line filtering applications. This through-hole component features a 5A maximum current rating and 55 mOhm DC resistance, operating across -40°C to 105°C. The part maintains Active product status with ROHS3 compliance and REACH unaffected certification. Equivalent and substitute parts are identified when design requirements allow variation in inductance, current rating, or frequency specifications while maintaining core electrical and mechanical compatibility.

Substiute Parts

SC-05-300

KEMETIn Stock: 1130SC-05-300 Datasheet

Current PartRFQ

SC-05-100

KEMETIn Stock: 1149SC-05-100 Datasheet

Parametric EquivalentRFQ

SC-06-900

KEMETIn Stock: 916SC-06-900 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC-05-300 are identified based on the following allowed parameter variations:

Primary Substitution Criteria:

• Number of Lines: Must remain 2-line configuration
• Mounting Type: Must remain Through Hole
• Voltage Rating: Must maintain minimum 250V DC and 250V AC
• Operating Temperature: Must support -40°C ~ 105°C range
• Filter Type: Must remain Power Line
• RoHS Status: Must maintain ROHS3 Compliance

Allowed Variations:

• Inductance @ Frequency: May vary based on application requirements
• Current Rating: May increase if design permits higher current handling
• DC Resistance: May vary within acceptable limits for the application
• Physical Dimensions: May vary within board layout constraints
• Frequency Specification: May differ from 100 kHz reference

The SC-05-300 has two identified substitutes: SC-05-100 and SC-06-900, both from the KEMET SC series.

Parameter Comparison

Engineering Selection Recommendations

All three parts—SC-05-300, SC-05-100, and SC-06-900—maintain Active product status with ROHS3 compliance and REACH unaffected certification, ensuring regulatory alignment across substitution options.

SC-05-100 Selection: Lower inductance (1 mH @ 100 kHz) with reduced DC resistance (50 mOhm) and smaller physical footprint (25.00mm diameter). Suitable for applications requiring lower inductance filtering or space-constrained board layouts while maintaining 5A current capacity.

SC-06-900 Selection: Higher inductance (9 mH @ 1 kHz) with increased current rating (6A) and larger physical footprint (34.00mm diameter). Suitable for applications requiring higher inductance filtering or designs with higher current demands, operating at lower frequency specification.

Component selection depends on specific circuit requirements for inductance value, current handling, frequency response, and available board space. All substitutes maintain identical voltage ratings, temperature range, and compliance certifications as the primary SC-05-300 part.

Frequently Asked Questions (FAQ)

Q: Can SC-05-100 replace SC-05-300 in all applications? A: SC-05-100 is a parametric equivalent with lower inductance (1 mH vs. 3 mH @ 100 kHz). Substitution is valid only when circuit design permits reduced inductance filtering. Both parts maintain identical voltage ratings, current capacity, and operating temperature range.

Q: What is the primary difference between SC-05-300 and SC-06-900? A: SC-06-900 features higher inductance (9 mH @ 1 kHz), increased current rating (6A vs. 5A), and larger physical dimensions (34.00mm vs. 32.00mm diameter). The frequency specification differs (1 kHz vs. 100 kHz), reflecting different measurement conditions.

Q: Are all three parts ROHS3 compliant? A: Yes. SC-05-300, SC-05-100, and SC-06-900 all maintain ROHS3 compliance and REACH unaffected status.

Q: Does physical size affect substitution compatibility? A: Physical dimensions vary across the three parts. SC-05-100 is smallest (25.00mm diameter), SC-05-300 is medium (32.00mm diameter), and SC-06-900 is largest (34.00mm diameter). Board layout constraints may limit substitution options.

Q: Can SC-06-900 handle higher current than SC-05-300? A: Yes. SC-06-900 has a 6A maximum current rating compared to SC-05-300's 5A rating. Both maintain 250V DC and AC voltage specifications and identical operating temperature range.

Q: What determines valid substitution between these parts? A: Valid substitution requires matching 2-line configuration, through-hole mounting, 250V voltage ratings, -40°C to 105°C operating temperature, power line filter type, and ROHS3 compliance. Inductance, current rating, DC resistance, and physical dimensions may vary based on application requirements.