SC-05-100 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SC-05-100 is a 1 mH Common Mode Choke (CMC) manufactured by KEMET, designed for power line filtering applications. This through-hole component operates at 100 kHz with a maximum current rating of 5A and a DC resistance of 50 mOhm. The part is Active in product status and fully compliant with RoHS3 and REACH regulations.

Substitute parts are identified when design requirements allow for variations in inductance value, current rating, or operating frequency while maintaining compatibility with the through-hole mounting configuration, 2-line topology, and voltage specifications (250V DC/AC).

Substiute Parts

SC-05-100

KEMETIn Stock: 1149SC-05-100 Datasheet

Current PartRFQ

SC-05-300

KEMETIn Stock: 1130SC-05-300 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-05-100 are qualified based on the following criteria:

Fixed Parameters (Non-Negotiable):

• Mounting Type: Through Hole
• Number of Lines: 2
• Filter Type: Power Line
• Voltage Rating: 250V DC / 250V AC
• Operating Temperature Range: -40°C ~ 105°C
• RoHS3 Compliance
• REACH Unaffected Status

Variable Parameters (Allowed for Substitution):

• Inductance Value and Frequency
• Current Rating (must equal or exceed application requirement)
• DC Resistance (must equal or be lower than application tolerance)
• Physical Dimensions
• Base Product Number (SC series variants)

The SC-05-100 has two qualified substitutes: SC-05-300 and SC-06-900. Both maintain the core electrical and mechanical compatibility requirements while offering different inductance and current characteristics for applications with varying filtering demands.

Parameter Comparison

Engineering Selection Recommendations

SC-05-100 Primary Selection: Select the SC-05-100 when the application requires 1 mH inductance at 100 kHz with 5A maximum current and the smallest physical footprint (25.00mm diameter). This part is the baseline reference and offers the lowest DC resistance at 50 mOhm.

SC-05-300 Selection Criteria: The SC-05-300 provides 3 mH inductance at 100 kHz, suitable for applications requiring higher filtering attenuation at the same frequency. Current rating remains 5A. Physical size increases to 32.00mm diameter. DC resistance increases to 55 mOhm. Select this substitute when higher inductance filtering is required within the same frequency band and current envelope.

SC-06-900 Selection Criteria: The SC-06-900 offers the highest inductance at 9 mH but operates at 1 kHz frequency. Current rating increases to 6A, and DC resistance is 60 mOhm. Physical size is largest at 34.00mm diameter. Select this substitute when low-frequency filtering is required or when the application can accommodate higher current capacity and larger board space.

All three parts maintain Active product status, RoHS3 compliance, and REACH unaffected designation. Selection depends on circuit board space availability, frequency response requirements, and current handling needs.

Frequently Asked Questions (FAQ)

Q: Can SC-05-300 replace SC-05-100 in any application?

A: SC-05-300 is a substitute only when the application can tolerate 3 mH inductance instead of 1 mH at 100 kHz. Higher inductance increases filtering attenuation but may affect circuit impedance and frequency response. Physical dimensions increase from 25.00mm to 32.00mm diameter, requiring board layout verification.

Q: What is the primary difference between SC-05-300 and SC-06-900?

A: SC-05-300 operates at 100 kHz with 3 mH inductance and 5A current rating. SC-06-900 operates at 1 kHz with 9 mH inductance and 6A current rating. The frequency difference determines suitability: SC-05-300 for higher-frequency applications, SC-06-900 for lower-frequency or higher-current applications.

Q: Are all three parts interchangeable from a compliance perspective?

A: Yes. All three parts (SC-05-100, SC-05-300, SC-06-900) are RoHS3 compliant, REACH unaffected, and rated for 250V DC/AC operation across -40°C to 105°C. Compliance certifications are equivalent. Interchangeability is determined by electrical parameters and physical dimensions only.

Q: Does DC resistance variation affect substitution?

A: DC resistance increases across the series: SC-05-100 at 50 mOhm, SC-05-300 at 55 mOhm, and SC-06-900 at 60 mOhm. Higher resistance increases power dissipation. Substitution is valid only if the application can tolerate the increased resistance without exceeding thermal or efficiency limits.

Q: What mounting considerations apply to these substitutes?

A: All three parts use through-hole mounting with 4 PC pins in vertical orientation without base. Physical diameter increases with inductance value: 25.00mm (SC-05-100), 32.00mm (SC-05-300), and 34.00mm (SC-06-900). Board layout must accommodate the larger footprint of substitute parts.

Q: Can SC-06-900 be used in place of SC-05-100 if current capacity is not a limiting factor?

A: SC-06-900 is a valid substitute only if the application operates at or near 1 kHz frequency and can accommodate 9 mH inductance. The frequency difference (1 kHz vs. 100 kHz) fundamentally changes filtering characteristics. Use only when low-frequency filtering is the design requirement.