Equivalent & Substitute Parts for Cornell Dubilier Electronics 32FB4401-F

Part Overview

The Cornell Dubilier Electronics 32FB4401-F is a 1 µF film capacitor rated for 440V AC operation with polypropylene metallized dielectric construction. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing applications in motor run and power factor correction circuits. The part features radial can packaging with quick connect/disconnect termination suitable for chassis mount installations requiring holder or bracket support.

Substiute Parts

32FB4401-F

Cornell Dubilier Electronics (CDE)In Stock: 73032FB4401-F Datasheet

Current PartRFQ

32FB4401A-F

Cornell Dubilier Electronics (CDE)In Stock: 125332FB4401A-F Datasheet

DirectRFQ

SFA66T1K156B-F

Cornell Dubilier Electronics (CDE)In Stock: 985SFA66T1K156B-F Datasheet

DirectRFQ

SFA66T1K219B-F

Cornell Dubilier Electronics (CDE)In Stock: 1139SFA66T1K219B-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 32FB4401-F is determined by the following critical parameters: capacitance value (1 µF), tolerance (±10%), dielectric material (polypropylene metallized), package type (radial can), termination style (quick connect/disconnect), and mounting configuration (chassis mount with holder/bracket requirement).

Group 1: Direct Voltage Rating Match (440V AC)

• 32FB4401A-F: Active product with identical electrical specifications and mechanical compatibility

Group 2: Higher Voltage Rating (660V AC)

• SFA66T1K156B-F: Active product with elevated voltage rating suitable for 440V applications
• SFA66T1K219B-F: Active product with elevated voltage rating suitable for 440V applications

All substitute parts maintain the same capacitance, tolerance, dielectric material, operating temperature range, and termination characteristics as the original 32FB4401-F.

Parameter Comparison

Engineering Selection Recommendations

32FB4401A-F is the primary direct replacement for the obsolete 32FB4401-F. Both parts are manufactured by Cornell Dubilier Electronics within the MPF series, maintain identical electrical specifications (1 µF, ±10%, 440V AC), and share equivalent mechanical dimensions and termination characteristics. The 32FB4401A-F holds active product status with ROHS3 compliance and REACH unaffected certification, ensuring supply chain continuity and regulatory compliance.

SFA66T1K156B-F and SFA66T1K219B-F function as higher-voltage alternatives within the SF series. These parts operate at 660V AC, providing voltage margin above the 440V requirement of the original application. Both maintain the same capacitance, tolerance, dielectric material, operating temperature range, and termination type. The SF series parts differ in maximum seated height (1.680" and 2.310" respectively), requiring verification of available mounting space within the chassis assembly. Both SF series substitutes are active products with ROHS3 compliance and REACH unaffected status.

Selection between 32FB4401A-F and the SF series alternatives depends on available mounting envelope and voltage margin requirements. The 32FB4401A-F provides direct dimensional compatibility, while SFA66T1K156B-F offers the most compact height profile among active alternatives.

Frequently Asked Questions (FAQ)

Q: Can the 32FB4401A-F directly replace the obsolete 32FB4401-F?

A: Yes. The 32FB4401A-F is a direct equivalent with identical capacitance (1 µF), tolerance (±10%), voltage rating (440V AC), dielectric material (polypropylene metallized), package type (radial can), termination style (quick connect/disconnect), and mounting configuration (chassis mount with holder/bracket). Mechanical dimensions are equivalent within manufacturing tolerances.

Q: What is the difference between the 32FB4401A-F and the SFA66T1K156B-F?

A: The primary difference is voltage rating: 32FB4401A-F operates at 440V AC, while SFA66T1K156B-F operates at 660V AC. Both maintain identical capacitance, tolerance, dielectric material, and termination characteristics. The SFA66T1K156B-F has a lower maximum seated height (1.680" versus 2.440"), which may affect mounting space availability.

Q: Are the SFA66T1K156B-F and SFA66T1K219B-F interchangeable?

A: Both parts share identical electrical specifications (1 µF, ±10%, 660V AC, polypropylene metallized dielectric) and termination type (quick connect/disconnect). The primary difference is maximum seated height: SFA66T1K156B-F measures 1.680" while SFA66T1K219B-F measures 2.310". Selection depends on available mounting envelope within the chassis assembly.

Q: Do all substitute parts maintain the same operating temperature range?

A: Yes. All substitute parts (32FB4401A-F, SFA66T1K156B-F, and SFA66T1K219B-F) operate across the identical temperature range of -40°C to 70°C.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The 32FB4401A-F, SFA66T1K156B-F, and SFA66T1K219B-F are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Can a 660V rated capacitor be used in a 440V application?

A: Yes. The SFA66T1K156B-F and SFA66T1K219B-F, rated for 660V AC, are suitable for applications requiring 440V AC operation. Higher voltage ratings provide operational margin without affecting capacitance or tolerance specifications.

Q: What is the lead spacing tolerance across all parts?

A: The 32FB4401-F and 32FB4401A-F specify 0.813" (20.64mm) lead spacing, while SFA66T1K156B-F and SFA66T1K219B-F specify 0.810" (20.57mm) lead spacing. This 0.003" difference is within typical manufacturing tolerances for quick connect/disconnect termination systems.