Equivalent & Substitute Parts for Cornell Dubilier Electronics 32FB4403

Part Overview

The Cornell Dubilier Electronics 32FB4403 is a 3 µF film capacitor rated for 440V AC operation with polypropylene metallized dielectric construction. This 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. Substitute parts must preserve the 3 µF capacitance, 440V AC rating, ±10% tolerance, and radial can package configuration to ensure direct functional replacement.

Substiute Parts

32FB4403

Cornell Dubilier Electronics (CDE)In Stock: 84632FB4403 Datasheet

Current PartRFQ

32FB4403A-F

Cornell Dubilier Electronics (CDE)In Stock: 81032FB4403A-F Datasheet

DirectRFQ

SFA44T3K156B-F

Cornell Dubilier Electronics (CDE)In Stock: 720SFA44T3K156B-F Datasheet

DirectRFQ

SFA44T3K209B-F

Cornell Dubilier Electronics (CDE)In Stock: 926SFA44T3K209B-F Datasheet

DirectRFQ

SFA44T3K219B-F

Cornell Dubilier Electronics (CDE)In Stock: 1122SFA44T3K219B-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 32FB4403 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance: 3 µF (exact match)
• Voltage Rating - AC: 440V (exact match)
• Tolerance: ±10% (exact match)
• Dielectric Material: Polypropylene (PP), Metallized (exact match)

Mechanical Compatibility Requirements:

• Package / Case: Radial, Can (exact match)
• Mounting Type: Chassis Mount, Requires Holder/Bracket (exact match)
• Termination: Quick Connect, Disconnect (exact match)
• Lead Spacing: Within 0.810" - 0.813" range (20.57mm - 20.64mm)
• Operating Temperature Range: -40°C ~ 70°C (exact match)

All identified substitute parts meet these criteria. Dimensional variations in height and overall length are permissible provided the component fits within the chassis mount holder/bracket assembly and maintains the specified lead spacing tolerance.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 32FB4403A-F

The 32FB4403A-F is the direct active equivalent of the obsolete 32FB4403. This part maintains identical electrical specifications (3 µF, 440V AC, ±10% tolerance) and mechanical configuration (radial can package, quick connect termination, 0.813" lead spacing). The 32FB4403A-F is ROHS3 compliant and carries active product status, ensuring long-term availability and supply chain continuity. The marginal height reduction (61.98mm versus 66.80mm) is compatible with standard chassis mount holder/bracket assemblies. This part is the preferred direct replacement.

Secondary Recommendations: SFA44T3K156B-F, SFA44T3K209B-F, SFA44T3K219B-F

The SF series parts (SFA44T3K156B-F, SFA44T3K209B-F, SFA44T3K219B-F) provide full electrical equivalence with identical capacitance, voltage rating, tolerance, and dielectric material. These parts are ROHS3 compliant and carry active product status. Lead spacing is 0.810" (20.57mm), within the acceptable tolerance range. Height variations (42.67mm to 56.13mm) accommodate different chassis mount configurations. The SF series represents alternative active sources for the 32FB4403 function.

Compliance Consideration:

All substitute parts are ROHS3 compliant, whereas the original 32FB4403 is RoHS non-compliant. This compliance upgrade is standard for active production parts and does not affect electrical or mechanical performance in motor run and power factor correction applications.

Frequently Asked Questions (FAQ)

Q: Can the 32FB4403A-F directly replace the obsolete 32FB4403?

A: Yes. The 32FB4403A-F is electrically and mechanically equivalent. Both parts share identical capacitance (3 µF), voltage rating (440V AC), tolerance (±10%), dielectric material (polypropylene metallized), package type (radial can), termination style (quick connect/disconnect), and lead spacing (0.813"). The height difference (61.98mm versus 66.80mm) is compatible with standard chassis mount holder/bracket assemblies.

Q: What is the difference between the 32FB4403A-F and the SF series parts?

A: The 32FB4403A-F belongs to the MPF series, while SFA44T3K156B-F, SFA44T3K209B-F, and SFA44T3K219B-F belong to the SF series. All parts are electrically identical (3 µF, 440V AC, ±10%). The SF series parts have slightly different lead spacing (0.810" versus 0.813") and varying heights. Both series are ROHS3 compliant and active products.

Q: Are dimensional differences between substitute parts significant?

A: Height variations among substitute parts (42.67mm to 66.80mm) are accommodated by the chassis mount holder/bracket assembly design. Lead spacing differences (0.810" to 0.813") fall within acceptable tolerance for quick connect/disconnect termination systems. Physical fit must be verified within the specific equipment enclosure.

Q: Does RoHS3 compliance affect performance in motor run applications?

A: No. RoHS3 compliance reflects manufacturing process changes and material restrictions but does not alter electrical performance, capacitance value, voltage rating, or operating temperature range. All substitute parts maintain full functional equivalence in motor run and power factor correction applications.

Q: Which substitute part should be selected for new equipment designs?

A: The 32FB4403A-F is the recommended choice for direct replacement scenarios. For new designs, any of the four active substitute parts (32FB4403A-F, SFA44T3K156B-F, SFA44T3K209B-F, SFA44T3K219B-F) are acceptable provided dimensional fit is confirmed within the chassis mount assembly.

Q: Are all substitute parts available in the same packaging options?

A: The 32FB4403A-F and SFA44T3K219B-F are available in bulk packaging. SFA44T3K156B-F is available in bulk packaging. SFA44T3K209B-F packaging information is not specified. Packaging selection should align with procurement and inventory management requirements.