Equivalent & Substitute Parts for Cornell Dubilier Electronics 32FB4405

Part Overview

The Cornell Dubilier Electronics 32FB4405 is a 5 µF film capacitor rated for 440V AC operation with polypropylene (PP) metallized dielectric construction. This radial, can-style component is designed for motor run and power factor correction (PFC) applications in industrial equipment. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for continued system operation and maintenance.

Substiute Parts

32FB4405

Cornell Dubilier Electronics (CDE)In Stock: 100032FB4405 Datasheet

Current PartRFQ

32FB4405A-F

Cornell Dubilier Electronics (CDE)In Stock: 115432FB4405A-F Datasheet

DirectRFQ

SFA44T5K219B-F

Cornell Dubilier Electronics (CDE)In Stock: 1062SFA44T5K219B-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 32FB4405 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance: 5 µF
• Tolerance: ±10%
• Voltage Rating (AC): 440V
• Dielectric Material: Polypropylene (PP), Metallized

Mechanical Parameters (Required for Physical Compatibility):

• Package / Case: Radial, Can
• Mounting Type: Chassis Mount, Requires Holder/Bracket
• Termination: Quick Connect, Disconnect
• Lead Spacing: Within tolerance of 0.813" (20.64mm)
• Physical dimensions: Compatible with existing mounting brackets and enclosures

Environmental Parameters:

• Operating Temperature Range: -40°C ~ 70°C

Both identified substitute parts (32FB4405A-F and SFA44T5K219B-F) satisfy all electrical and mechanical equivalence criteria. The primary distinction between substitutes is product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Active System Maintenance:

The 32FB4405A-F is the primary recommended substitute. This part maintains identical electrical specifications and lead spacing while offering active product status and ROHS3 compliance. The reduced seated height (2.440" versus 2.880") provides improved spatial efficiency in compact enclosures without compromising electrical performance.

For Legacy System Replacement:

The SFA44T5K219B-F serves as a secondary equivalent option. While belonging to the SF series rather than the MPF series, it delivers identical electrical performance and active availability. The lead spacing of 0.810" (20.57mm) represents a 0.003" (0.07mm) deviation from the original specification, which falls within standard mechanical tolerance for radial can-style capacitor mounting. The further reduced seated height (2.310") accommodates space-constrained applications.

Regulatory Compliance:

Both substitute parts achieve ROHS3 compliance and REACH unaffected status, addressing modern environmental and regulatory requirements. The original 32FB4405 is RoHS non-compliant, making substitution necessary for applications subject to RoHS directives.

Frequently Asked Questions (FAQ)

Q: Can the 32FB4405A-F directly replace the 32FB4405 in existing equipment?

A: Yes. The 32FB4405A-F maintains identical electrical parameters (5 µF, ±10%, 440V AC) and mechanical specifications (lead spacing, termination type, mounting configuration). The reduced seated height improves compatibility with space-constrained designs.

Q: What is the significance of the lead spacing difference between 32FB4405A-F and SFA44T5K219B-F?

A: The 32FB4405A-F maintains 0.813" (20.64mm) lead spacing identical to the original part. The SFA44T5K219B-F operates at 0.810" (20.57mm), a 0.003" deviation. This difference is within standard mechanical tolerance for radial can capacitor mounting and does not affect electrical function or holder compatibility in typical industrial applications.

Q: Why is the seated height different among the three parts?

A: Seated height variation reflects design evolution within the product lines while maintaining electrical equivalence. The 32FB4405 (2.880"), 32FB4405A-F (2.440"), and SFA44T5K219B-F (2.310") all deliver identical capacitance and voltage performance. Reduced height in newer designs provides space optimization benefits.

Q: Are both substitute parts suitable for motor run and PFC applications?

A: Yes. Both 32FB4405A-F and SFA44T5K219B-F are specified for motor run and power factor correction applications. The 32FB4405A-F explicitly lists both applications; the SFA44T5K219B-F lists motor run with equivalent electrical suitability for PFC duty.

Q: What is the difference between the MPF and SF series designations?

A: The 32FB4405A-F belongs to the MPF series (same as the original part), while the SFA44T5K219B-F belongs to the SF series. Both series employ identical polypropylene metallized dielectric technology and deliver equivalent electrical performance at 5 µF, 440V AC.

Q: Are there inventory considerations for selecting between the two substitutes?

A: Both parts maintain substantial active inventory (1049 pcs for 32FB4405A-F; 1044 pcs for SFA44T5K219B-F), ensuring supply continuity. Selection should prioritize the 32FB4405A-F for series consistency and identical lead spacing, with SFA44T5K219B-F as a secondary option.

Q: Does the ROHS3 compliance of the substitute parts affect electrical performance?

A: No. ROHS3 compliance reflects manufacturing process and material composition standards, not electrical characteristics. Both substitute parts deliver identical capacitance, voltage rating, and temperature performance as the original part.