CMF-6330 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The CMF-6330 is a 33 mH @ 1 kHz, 2-line common mode choke manufactured by Tamura, rated for 500mA maximum current with 1.76Ohm DC resistance. This component is classified as obsolete product status. Due to its obsolete designation, identifying equivalent and substitute parts with matching or superior electrical and mechanical specifications is necessary for design continuity and procurement planning.

Substiute Parts

CMF-6330

TamuraIn Stock: 1193CMF-6330 Datasheet

Current PartRFQ

SS21V-R060330

KEMETIn Stock: 1774SS21V-R060330 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CMF-6330 is determined by the following critical parameters:

Electrical Specifications:

• Inductance value: 33 mH @ 1 kHz (exact match required)
• Number of lines: 2-line configuration (exact match required)
• Current rating: Minimum 500mA (equal or higher acceptable)
• DC resistance: Maximum 1.76Ohm (lower values acceptable)
• AC voltage rating: Minimum 250V (equal or higher acceptable)

Mechanical Specifications:

• Package configuration: Vertical, 4 PC Pin (exact match required)
• Physical dimensions and height compatibility

Compliance & Status:

• Active product status preferred for long-term availability
• RoHS and REACH compliance status documented

The substitute part SS21V-R060330 meets all critical electrical parameters with improved current rating (600mA vs 500mA) and lower DC resistance (1.5Ohm vs 1.76Ohm), while maintaining identical inductance, line configuration, voltage rating, and package type.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SS21V-R060330 (KEMET)

The SS21V-R060330 is the direct equivalent for CMF-6330 replacement. Selection rationale:

• Electrical specifications are identical for inductance (33 mH @ 1 kHz), line configuration (2-line), and AC voltage rating (250V)
• Current rating of 600mA exceeds the original 500mA specification, providing design margin
• DC resistance of 1.5Ohm is lower than the original 1.76Ohm, reducing power dissipation
• Package configuration matches exactly: Vertical, 4 PC Pin
• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance and documented operating temperature range (-25°C ~ 120°C) support modern manufacturing and environmental standards
• Through-hole mounting type is compatible with standard PCB assembly processes

Availability & Compliance: The SS21V-R060330 is currently in active production with 1,741 pieces in stock, compared to the obsolete CMF-6330 status. ROHS3 compliance and REACH unaffected status meet current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SS21V-R060330 directly replace CMF-6330 in existing designs?

A: Yes. The SS21V-R060330 maintains identical inductance (33 mH @ 1 kHz), line configuration (2-line), AC voltage rating (250V), and package type (Vertical, 4 PC Pin). The higher current rating (600mA vs 500mA) and lower DC resistance (1.5Ohm vs 1.76Ohm) are compatible with designs specified for CMF-6330.

Q: What are the physical dimension differences?

A: CMF-6330 dimensions are 0.886" L x 0.709" W x 1.102" H (22.50mm x 18.00mm x 28.00mm). SS21V-R060330 dimensions are 0.807" L x 0.650" W x 0.965" H (20.50mm x 16.50mm x 24.50mm). The substitute is slightly smaller in all dimensions, which may require PCB layout verification for clearance.

Q: Are there compliance differences between the two parts?

A: CMF-6330 compliance information is not fully specified. SS21V-R060330 is ROHS3 compliant and REACH unaffected, meeting current regulatory standards. Both parts carry EAR99 ECCN classification.

Q: What is the operating temperature range for each part?

A: CMF-6330 operating temperature is not specified in available documentation. SS21V-R060330 operates from -25°C to 120°C, providing a defined thermal operating window for system design.

Q: Why is product status important for this substitution?

A: CMF-6330 is obsolete, meaning Tamura no longer manufactures or supports this component. SS21V-R060330 is active production, ensuring long-term availability, technical support, and supply chain reliability for new designs or production continuity.