Equivalent & Substitute Parts for Cornell Dubilier Electronics 23FB4430-F Film Capacitor

Part Overview

The Cornell Dubilier Electronics 23FB4430-F is a 30 µF film capacitor rated for 440V AC applications, designed for motor run and power factor correction (PFC) circuits. This part is classified as obsolete, necessitating the identification of equivalent and substitute options from the manufacturer's current product portfolio to ensure circuit continuity and supply chain reliability.

Substiute Parts

23FB4430-F

Cornell Dubilier Electronics (CDE)In Stock: 111923FB4430-F Datasheet

Current PartRFQ

23FB4430A-F

Cornell Dubilier Electronics (CDE)In Stock: 86923FB4430A-F Datasheet

DirectRFQ

SFS44T30K291B-F

Cornell Dubilier Electronics (CDE)In Stock: 1110SFS44T30K291B-F Datasheet

DirectRFQ

23FB4430

Cornell Dubilier Electronics (CDE)In Stock: 84623FB4430 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 23FB4430-F is based on the following critical electrical and mechanical parameters that must remain constant:

Electrical Compatibility Parameters:

• Capacitance: 30 µF (exact match required)
• Tolerance: ±10% (defines acceptable value range)
• Voltage Rating - AC: 440V (minimum required rating)
• Dielectric Material: Polypropylene (PP), Metallized (functional requirement for application)
• Operating Temperature Range: -40°C ~ 70°C (environmental specification)

Mechanical Compatibility Parameters:

• Mounting Type: Chassis Mount, Requires Holder/Bracket
• Package / Case: Radial, Can
• Termination: Quick Connect, Disconnect
• Lead Spacing: 0.813" (20.64mm) ±tolerance
• Physical Dimensions: Must fit within existing mechanical constraints

The substitute parts identified maintain these core parameters while potentially offering improvements in product status (active vs. obsolete) and packaging configurations.

Parameter Comparison

Engineering Selection Recommendations

23FB4430A-F (Direct Manufacturer Equivalent): This part represents the direct equivalent in Cornell Dubilier's current product line. All electrical parameters are identical to the 23FB4430-F. The height difference of 0.090" (2.28mm) must be evaluated within the specific mechanical envelope of the application. This part carries active product status and ROHS3 compliance certification, providing supply chain sustainability.

SFS44T30K291B-F (Direct Manufacturer Substitute): This substitute maintains identical electrical specifications and offers a more compact form factor with a maximum seated height of 3.030" (76.96mm), compared to 4.000" (101.60mm) for the original part. Lead spacing variance of 0.003" (0.07mm) is within typical component tolerance. The SF series designation indicates a different product line within Cornell Dubilier's portfolio. Active product status and ROHS3 compliance are confirmed.

23FB4430 (Parametric Equivalent): This part provides electrical equivalence with identical core parameters. However, RoHS non-compliant status restricts application in regulated markets and supply chains requiring environmental compliance certification. Selection of this part is conditional on compliance exemptions and end-use regulatory requirements.

Frequently Asked Questions (FAQ)

Q: What makes 23FB4430A-F a suitable replacement for 23FB4430-F? A: Both parts share identical capacitance (30 µF), voltage rating (440V AC), tolerance (±10%), dielectric material (polypropylene metallized), and operating temperature range. All electrical parameters required for motor run and PFC applications are matched. Dimensional differences are limited to height variance, which must be confirmed against mechanical constraints in the specific application.

Q: Can SFS44T30K291B-F be used as a drop-in replacement? A: SFS44T30K291B-F maintains all critical electrical specifications. The primary consideration is mechanical fit: the height is 0.97" (24.64mm) shorter than the original part, and lead spacing differs by 0.003" (0.07mm). Verification of clearance and mechanical mounting compatibility is required before substitution.

Q: What is the difference between "Direct Manufacturer" and "Parametric Equivalent" classifications? A: Direct manufacturer substitutes (23FB4430A-F and SFS44T30K291B-F) are active production parts explicitly identified as alternatives by Cornell Dubilier. The parametric equivalent (23FB4430) meets electrical specifications but may lack active production status or current compliance certifications.

Q: Are all substitute parts RoHS3 compliant? A: 23FB4430A-F and SFS44T30K291B-F both carry ROHS3 compliant certification. The parametric equivalent 23FB4430 is RoHS non-compliant. Compliance requirements in the target application must determine part selection.

Q: How do packaging configurations differ among these parts? A: All parts are supplied in Radial, Can configuration with chassis mount requirements. 23FB4430A-F is supplied in Bulk packaging, while 23FB4430-F and 23FB4430 have alternative packaging designations. Packaging selection may affect ordering quantities and lead times.

Q: What inventory levels are currently available? A: 23FB4430-F: 1084 units; 23FB4430A-F: 771 units; SFS44T30K291B-F: 1007 units; 23FB4430: 804 units. Inventory status should be confirmed at time of procurement due to ongoing availability changes.