SC-05-500 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SC-05-500 is a 5 mH common mode choke manufactured by KEMET, designed for power line filtering applications. This through-hole component operates at 100 kHz with a maximum current rating of 4A and a DC resistance of 80 mOhm. The part is currently active in production with full RoHS3 compliance and REACH unaffected status. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits operation at alternative frequency specifications while maintaining core electrical and mechanical compatibility.

Substiute Parts

SC-05-500

KEMETIn Stock: 771SC-05-500 Datasheet

Current PartRFQ

SC-04-500

KEMETIn Stock: 1337SC-04-500 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC-05-500 is determined by the following critical parameters:

Core Electrical Compatibility Criteria:

• Inductance value: 5 mH (fixed requirement)
• Current rating: 4A minimum
• Voltage rating: 250V DC and 250V AC minimum
• Number of lines: 2-line configuration
• Filter type: Power line application

Mechanical Compatibility Criteria:

• Mounting type: Through hole
• Package configuration: Vertical, No Base, 4 PC Pin
• Operating temperature range: -40°C to 105°C minimum

Allowed Variation Parameters:

• Frequency specification: Substitutes may operate at different frequency ratings (10 kHz, 100 kHz, etc.) provided inductance value remains 5 mH
• DC resistance: Substitutes with lower DCR values are acceptable; higher DCR values require circuit analysis
• Physical dimensions: Minor variations permitted within through-hole footprint compatibility

The SC-04-500 qualifies as a parametric equivalent based on matching inductance (5 mH), current rating (4A), voltage ratings (250V DC/AC), line configuration (2-line), mounting type (through hole), and compliance certifications, with the primary difference being operation at 10 kHz versus 100 kHz and reduced DC resistance (70 mOhm versus 80 mOhm).

Parameter Comparison

Engineering Selection Recommendations

SC-05-500 Selection Criteria:

• Primary choice when 100 kHz frequency specification is required by circuit design
• Preferred when DC resistance of 80 mOhm is within acceptable limits for power dissipation calculations
• Suitable for applications where inductance measurement at 100 kHz is specified in design documentation
• Active product status ensures continued availability and manufacturing support

SC-04-500 Selection Criteria:

• Acceptable substitute when circuit design permits operation at 10 kHz frequency specification
• Preferred when lower DC resistance (70 mOhm) provides thermal or efficiency advantages
• Suitable for applications where inductance value of 5 mH is the primary design requirement independent of measurement frequency
• Higher inventory availability (1292 pcs versus 753 pcs) supports supply chain continuity
• Active product status ensures continued manufacturing support

Compliance Basis: Both parts maintain identical RoHS3 compliance and REACH unaffected status, ensuring regulatory equivalence for applications subject to environmental directives. Both parts operate across the full -40°C to 105°C temperature range, supporting equivalent thermal performance in industrial and commercial environments.

Frequently Asked Questions (FAQ)

Q: Can SC-04-500 be used as a direct replacement for SC-05-500?

A: SC-04-500 is a parametric equivalent when the circuit design permits operation at 10 kHz instead of 100 kHz. Both parts deliver 5 mH inductance, 4A current rating, and 250V voltage rating. The frequency difference reflects the measurement point for inductance specification. Verify that your application does not require inductance measurement specifically at 100 kHz before substitution.

Q: What is the difference in DC resistance between these parts?

A: SC-05-500 has a maximum DC resistance of 80 mOhm, while SC-04-500 has a maximum DC resistance of 70 mOhm. The lower resistance in SC-04-500 results in reduced power dissipation and heat generation. For applications with tight thermal budgets, SC-04-500 offers an advantage. For applications where 80 mOhm is already accounted for in design calculations, both parts are equivalent.

Q: Are the physical dimensions compatible for PCB layout?

A: SC-05-500 measures 1.339" diameter × 0.906" width (34.00mm × 23.00mm). SC-04-500 measures 1.142" diameter (29.00mm). Both use identical through-hole mounting with vertical orientation and 4 PC pin configuration. SC-04-500 is physically smaller and will fit in any footprint designed for SC-05-500, but verify that your PCB layout does not rely on the larger dimensions of SC-05-500.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both SC-05-500 and SC-04-500 are RoHS3 compliant and REACH unaffected. Both parts are classified under ECCN EAR99 for export control purposes. Regulatory equivalence is confirmed for applications subject to environmental and trade compliance requirements.

Q: Which part should I select for new designs?

A: For new designs, select based on your circuit's frequency specification. If your design specifies inductance at 100 kHz, use SC-05-500. If your design specifies inductance at 10 kHz or does not specify a measurement frequency, SC-04-500 is acceptable and offers lower DC resistance. Both parts are active products with confirmed manufacturing support.

Q: What is the inventory status for each part?

A: SC-05-500 has 753 pieces in stock. SC-04-500 has 1292 pieces in stock. SC-04-500 offers greater immediate availability for urgent procurement requirements.