Equivalent & Substitute Parts for Cornell Dubilier Electronics 23FD3725-F

Part Overview

The Cornell Dubilier Electronics 23FD3725-F is a 25 µF film capacitor rated for 370V AC operation, utilizing polypropylene (PP) metallized dielectric technology in a radial, can-style package. This component is designed for motor run and power factor correction (PFC) applications requiring chassis mount installation with holder/bracket support.

The 23FD3725-F carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain circuit functionality, ensure supply chain continuity, and support ongoing maintenance and production requirements for systems utilizing this capacitor specification.

Substiute Parts

23FD3725-F

Cornell Dubilier Electronics (CDE)In Stock: 93323FD3725-F Datasheet

Current PartRFQ

23FD3725A-F

Cornell Dubilier Electronics (CDE)In Stock: 70823FD3725A-F Datasheet

DirectRFQ

SFS44T25K291B-F

Cornell Dubilier Electronics (CDE)In Stock: 908SFS44T25K291B-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 23FD3725-F is determined by the following critical parameters:

Primary Substitution Criteria:

• Capacitance value: 25 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Dielectric material: Polypropylene (PP), Metallized (exact match required)
• Package type: Radial, Can (exact match required)
• Termination style: Quick Connect, Disconnect (exact match required)
• Operating temperature range: -40°C ~ 70°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Secondary Substitution Criteria:

• Voltage rating - AC: Equal to or greater than 370V
• Physical dimensions: Lead spacing and diameter within acceptable mechanical tolerance
• Mounting configuration: Chassis Mount, Requires Holder/Bracket (exact match required)

The substitute parts listed below satisfy all primary criteria and maintain compatibility with the original circuit design parameters.

Parameter Comparison

Engineering Selection Recommendations

23FD3725A-F (Primary Substitute)

The 23FD3725A-F is the direct equivalent substitute for the obsolete 23FD3725-F. Both parts share identical electrical specifications (25 µF, ±10%, 370V AC), dielectric composition, package configuration, and operating temperature range. The 23FD3725A-F maintains active product status with current manufacturing availability. Physical dimensions are nearly identical, with lead spacing matching exactly at 0.813" (20.64mm). Height difference of 0.090" (2.29mm) is within acceptable mechanical tolerance for chassis-mounted applications. ROHS3 compliance and REACH unaffected status confirm regulatory alignment. This part is the recommended direct replacement for the 23FD3725-F.

SFS44T25K291B-F (Secondary Substitute)

The SFS44T25K291B-F is a compatible substitute with elevated voltage rating (440V AC versus 370V AC). All other electrical parameters match: 25 µF capacitance, ±10% tolerance, polypropylene metallized dielectric, and identical operating temperature range. Package type, mounting configuration, and termination style are identical. Physical dimensions are comparable, with lead spacing at 0.810" (20.57mm) and height at 3.030" (76.96mm), both within acceptable mechanical tolerance. Active product status and ROHS3 compliance are confirmed. The higher voltage rating provides additional safety margin in applications operating at or near 370V AC nominal levels. This part is suitable for substitution where voltage headroom is beneficial.

Frequently Asked Questions (FAQ)

Q: Can the 23FD3725A-F directly replace the obsolete 23FD3725-F without circuit modification?

A: Yes. The 23FD3725A-F is electrically and mechanically equivalent to the 23FD3725-F. Both parts specify 25 µF capacitance, ±10% tolerance, 370V AC rating, polypropylene metallized dielectric, and identical operating temperature range. Lead spacing is identical at 0.813" (20.64mm). Height difference of 0.090" (2.29mm) is within acceptable tolerance for chassis-mounted applications. No circuit modification is required.

Q: What is the difference between the 23FD3725A-F and SFS44T25K291B-F substitutes?

A: Both parts are electrically compatible with the 23FD3725-F in terms of capacitance, tolerance, dielectric material, and operating temperature. The primary difference is voltage rating: the 23FD3725A-F maintains the original 370V AC specification, while the SFS44T25K291B-F is rated for 440V AC. The SFS44T25K291B-F provides higher voltage margin and is suitable for applications where additional voltage headroom is desired. Physical dimensions are comparable between both substitutes, with minor variations in height and diameter within acceptable mechanical tolerance.

Q: Are there any packaging or mounting differences between these substitutes?

A: All three parts (23FD3725-F, 23FD3725A-F, and SFS44T25K291B-F) utilize identical package types: radial, can-style configuration with quick connect/disconnect termination. All require chassis mount installation with holder/bracket support. Lead spacing is consistent at approximately 0.813" (20.64mm) for the first two parts and 0.810" (20.57mm) for the third part, representing negligible mechanical difference. Height variations (3.250", 3.160", and 3.030" respectively) are within acceptable tolerance for standard chassis-mounted applications.

Q: Do all substitute parts meet the same regulatory compliance standards?

A: Yes. The 23FD3725-F (main part), 23FD3725A-F, and SFS44T25K291B-F all carry ROHS3 compliance certification. The 23FD3725A-F and SFS44T25K291B-F are confirmed REACH unaffected. All parts are classified under ECCN EAR99 for export control purposes. Regulatory compliance is maintained across all substitution options.

Q: Which substitute should be selected for motor run applications?

A: Both 23FD3725A-F and SFS44T25K291B-F are suitable for motor run applications. The 23FD3725A-F maintains the original 370V AC specification and is the direct equivalent. The SFS44T25K291B-F, with its 440V AC rating, is also suitable and provides additional voltage margin. Selection depends on circuit voltage requirements and available inventory. Both parts are active products with current manufacturing availability.

Q: Can these parts be used interchangeably in power factor correction (PFC) circuits?

A: Yes. All three parts (23FD3725-F, 23FD3725A-F, and SFS44T25K291B-F) are specified for power factor correction applications. Electrical parameters are identical or compatible: 25 µF capacitance, ±10% tolerance, polypropylene metallized dielectric, and -40°C ~ 70°C operating temperature range. The 23FD3725A-F is the direct equivalent. The SFS44T25K291B-F, with higher voltage rating, is also compatible and suitable for PFC circuits operating at or near 370V AC nominal levels.