Equivalent & Substitute Parts for 23FB4435-F Film Capacitor

Part Overview

The Cornell Dubilier Electronics (CDE) 23FB4435-F is a 35 µF film capacitor rated for 440V AC operation, designed for motor run and power factor correction (PFC) applications. This component features polypropylene (PP) metallized dielectric construction in a radial, can-style package with quick connect/disconnect termination.

The 23FB4435-F carries an obsolete product status. Identifying equivalent substitute parts ensures continued availability for maintenance, repair, and replacement operations in installed systems.

Substiute Parts

23FB4435-F

Cornell Dubilier Electronics (CDE)In Stock: 108223FB4435-F Datasheet

Current PartRFQ

23FB4435A-F

Cornell Dubilier Electronics (CDE)In Stock: 85523FB4435A-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 23FB4435-F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 35 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage rating (AC): 440V (exact match required)
• Dielectric material: Polypropylene (PP), Metallized (exact match required)

Mechanical Parameters:

• Package type: Radial, Can (exact match required)
• Termination style: Quick Connect, Disconnect (exact match required)
• Mounting configuration: Chassis Mount, Requires Holder/Bracket (exact match required)

Environmental & Compliance Parameters:

• Operating temperature range: -40°C to 70°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Substitute parts must satisfy all listed parameters without deviation. Physical dimensions (diameter, height, lead spacing) may vary within the constraints of the radial can package format, provided the component fits within the mechanical envelope of the original installation.

Parameter Comparison

Engineering Selection Recommendations

The 23FB4435A-F is a direct electrical and functional equivalent to the obsolete 23FB4435-F. Both components are manufactured by Cornell Dubilier Electronics within the MPF series and share identical electrical specifications, dielectric composition, and environmental ratings.

Product Status Consideration: The 23FB4435-F is classified as obsolete, while the 23FB4435A-F maintains active product status. This status difference indicates ongoing manufacturing and availability of the substitute part.

Compliance & Certification: Both parts are ROHS3 compliant and carry identical moisture sensitivity levels (MSL 1 – Unlimited). No compliance barriers exist for substitution.

Physical Dimension Variance: The substitute part (23FB4435A-F) has a maximum seated height of 4.090" (103.88mm) compared to the original part's 3.870" (98.30mm). This represents a 0.220" (2.58mm) increase in height. Installation feasibility depends on available vertical clearance within the equipment enclosure. Diameter and lead spacing remain identical, ensuring compatibility with existing mounting brackets and quick connect/disconnect terminals.

Selection Basis: Selection of the 23FB4435A-F as a substitute is based on electrical equivalence, identical dielectric material, matching voltage and capacitance ratings, and active product availability. The height difference must be evaluated against the mechanical constraints of the specific installation.

Frequently Asked Questions (FAQ)

Q: Can the 23FB4435A-F be used as a direct replacement for the 23FB4435-F?

A: Yes, the 23FB4435A-F is electrically and functionally equivalent. Both components have identical capacitance (35 µF), voltage rating (440V AC), tolerance (±10%), dielectric material (polypropylene metallized), and operating temperature range (-40°C to 70°C). The primary consideration is the 0.220" increase in maximum seated height.

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

A: The 23FB4435A-F has a maximum seated height of 4.090" compared to 3.870" for the 23FB4435-F. This 0.220" difference must be verified against the available vertical clearance in the equipment where the capacitor will be installed. If clearance is limited, physical measurement of the installation space is required before substitution.

Q: Are both parts RoHS compliant?

A: Yes, both the 23FB4435-F and 23FB4435A-F are ROHS3 compliant. No environmental or regulatory barriers exist for substitution.

Q: Why is the 23FB4435-F listed as obsolete?

A: The 23FB4435-F carries an obsolete product status, indicating it is no longer in active production. The 23FB4435A-F, also from Cornell Dubilier Electronics in the MPF series, remains in active production and serves as the current equivalent.

Q: Do the quick connect/disconnect terminals match between these parts?

A: Yes, both components use identical quick connect/disconnect termination. Lead spacing is 0.813" (20.64mm) for both parts, ensuring compatibility with existing connection hardware.

Q: What applications are these capacitors designed for?

A: Both the 23FB4435-F and 23FB4435A-F are specified for motor run and power factor correction (PFC) applications at 440V AC operation.

Q: Is the packaging different between these parts?

A: The 23FB4435-F is packaged with a dash designation (-), while the 23FB4435A-F is packaged in bulk. This reflects inventory and distribution differences but does not affect electrical or mechanical performance.