Equivalent & Substitute Parts for Cornell Dubilier Electronics 32FB4406-F

Part Overview

The Cornell Dubilier Electronics 32FB4406-F is a 6 µF film capacitor rated for 440V AC operation, designed for motor run and power factor correction applications. This component features polypropylene metallized dielectric construction in a radial can package with quick connect termination. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity for applications requiring this specific capacitance and voltage rating.

Substiute Parts

32FB4406-F

Cornell Dubilier Electronics (CDE)In Stock: 73732FB4406-F Datasheet

Current PartRFQ

32FB4406A-F

Cornell Dubilier Electronics (CDE)In Stock: 114132FB4406A-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 32FB4406-F is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance value: 6 µF
• AC voltage rating: 440V minimum
• Tolerance: ±10%
• Dielectric type: Polypropylene (PP), Metallized

Mechanical Parameters (Non-Negotiable):

• Package configuration: Radial, Can
• Termination type: Quick Connect, Disconnect
• Lead spacing: 0.813" (20.64mm)
• Operating temperature range: -40°C to 70°C minimum

Compliance Parameters:

• RoHS3 compliance required
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part 32FB4406A-F meets all electrical, mechanical, and compliance requirements. The primary distinction is product status: 32FB4406A-F is active, whereas 32FB4406-F is obsolete. Physical dimensions show minor variation in seated height (61.98mm vs. 73.15mm), which remains within chassis mount application tolerances.

Parameter Comparison

Engineering Selection Recommendations

The 32FB4406A-F is the direct active equivalent for the obsolete 32FB4406-F. Selection is based on the following engineering criteria:

Product Status: The 32FB4406A-F carries active product status, ensuring continued availability and manufacturing support. The original 32FB4406-F is obsolete and subject to supply discontinuation.

Electrical Equivalence: Both parts are identical in capacitance (6 µF), AC voltage rating (440V), tolerance (±10%), and dielectric composition (polypropylene metallized). These parameters are critical for motor run and power factor correction applications and are fully matched.

Mechanical Compatibility: Lead spacing, termination type, and package configuration are identical. The seated height difference (61.98mm vs. 73.15mm) represents a reduction that does not compromise chassis mount applications requiring holder/bracket mounting.

Regulatory Compliance: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, satisfying environmental and reliability requirements for industrial motor applications.

Supply Chain Continuity: With 1049 pieces in stock versus 706 pieces for the obsolete variant, the 32FB4406A-F provides superior availability for new designs and replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the 32FB4406A-F directly replace the 32FB4406-F in existing applications?

A: Yes. The 32FB4406A-F is electrically and mechanically equivalent. Both parts share identical capacitance, voltage rating, tolerance, dielectric material, lead spacing, and termination type. The seated height reduction (61.98mm vs. 73.15mm) is compatible with chassis mount applications using holder/bracket assemblies.

Q: What is the significance of the height difference between these parts?

A: The 32FB4406A-F has a maximum seated height of 2.440" (61.98mm) compared to 2.880" (73.15mm) for the 32FB4406-F. This represents a 0.44" reduction. For chassis mount applications with adjustable or flexible holder/bracket systems, this variation does not affect functionality. Physical clearance verification is recommended for space-constrained enclosures.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant with identical moisture sensitivity levels (MSL 1, Unlimited). Both carry EAR99 ECCN classification and identical HTSUS codes, ensuring equivalent regulatory treatment.

Q: Why is the 32FB4406-F classified as obsolete?

A: Product obsolescence is determined by manufacturer lifecycle decisions. The 32FB4406A-F represents the active continuation of this capacitor family within the MPF series, maintaining full electrical and mechanical compatibility.

Q: What applications are these capacitors suitable for?

A: Both parts are specified for motor run and power factor correction (PFC) applications. The 440V AC rating and 6 µF capacitance are standard for three-phase motor run capacitors and industrial power factor correction circuits.

Q: Is the packaging difference significant?

A: The 32FB4406-F is packaged as individual units with a lip configuration, while the 32FB4406A-F is supplied in bulk packaging. This affects inventory management and procurement but does not alter component performance or compatibility.