23FD3755-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The 23FD3755-F is a 55 µF film capacitor rated for 370V AC operation, manufactured by Cornell Dubilier Electronics (CDE) in the MPF series. This component is designed for motor run and power factor correction (PFC) applications with a polypropylene metallized dielectric and radial can package configuration. The part is currently listed as obsolete, making identification of equivalent and substitute parts essential for system maintenance, repair, and redesign efforts. Active equivalent models are available from the same manufacturer with identical electrical specifications and compatible mechanical dimensions.

Substiute Parts

23FD3755-F

Cornell Dubilier Electronics (CDE)In Stock: 76223FD3755-F Datasheet

Current PartRFQ

23FD3755A-F

Cornell Dubilier Electronics (CDE)In Stock: 118123FD3755A-F Datasheet

DirectRFQ

SFS37T55K384B-F

Cornell Dubilier Electronics (CDE)In Stock: 931SFS37T55K384B-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 23FD3755-F is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance value: 55 µF (exact match required)
• Voltage rating: 370V AC (minimum requirement)
• Tolerance: ±10% (acceptable range for application)
• Dielectric type: Polypropylene (PP), Metallized (required for motor run and PFC applications)
• Operating temperature range: -40°C to 70°C (minimum coverage required)

Mechanical Compatibility Criteria:

• Package configuration: Radial, Can (form factor requirement)
• Mounting type: Chassis Mount with Holder/Bracket support
• Termination style: Quick Connect, Disconnect (interface requirement)
• Lead spacing: 0.810" to 0.813" (20.57mm to 20.64mm, within tolerance)
• Physical dimensions: Diameter 2.120" to 2.125" (53.85mm to 53.98mm), Height 3.960" to 4.090" (100.58mm to 103.88mm)

Compliance Criteria:

• RoHS3 compliance (environmental requirement)
• ECCN: EAR99 classification (export control consistency)
• HTSUS: 8532.25.0020 (tariff classification consistency)

Two substitute parts meet all substitution criteria: 23FD3755A-F (MPF series, active status) and SFS37T55K384B-F (SF series, active status).

Parameter Comparison

Engineering Selection Recommendations

23FD3755A-F Selection Criteria:

The 23FD3755A-F is the direct successor to the 23FD3755-F within the same MPF series. This substitute maintains identical electrical specifications and mechanical dimensions with the main part. The primary distinction is product status: 23FD3755A-F is active and currently manufactured, whereas 23FD3755-F is obsolete. The packaging format differs (Bulk versus original packaging), but electrical and mechanical compatibility is complete. This part is suitable for direct replacement in all applications where the 23FD3755-F was originally specified. ROHS3 compliance and EAR99 classification are maintained.

SFS37T55K384B-F Selection Criteria:

The SFS37T55K384B-F represents a cross-series substitute from the SF series, also manufactured by Cornell Dubilier Electronics. All electrical parameters are identical to the main part: 55 µF capacitance, 370V AC rating, ±10% tolerance, polypropylene metallized dielectric, and -40°C to 70°C operating range. Mechanical dimensions fall within acceptable tolerance ranges: diameter 2.120" (0.005" smaller than main part), height 3.960" (0.040" smaller than main part), and lead spacing 0.810" (0.003" smaller than main part). These dimensional variations remain within standard mechanical tolerances for chassis-mounted can capacitors with quick-connect terminations. ROHS3 compliance and EAR99 classification are maintained. This part is suitable for replacement in applications where minor dimensional variations within tolerance are acceptable.

Compliance Assurance:

Both substitute parts maintain ROHS3 compliance, EAR99 export classification, and 8532.25.0020 tariff classification consistency with the main part. Both are available in active production status with adequate inventory levels.

Frequently Asked Questions (FAQ)

Q: Can 23FD3755A-F be used as a direct replacement for 23FD3755-F?

A: Yes. The 23FD3755A-F is electrically and mechanically equivalent to the 23FD3755-F. Both parts share identical capacitance (55 µF), voltage rating (370V AC), tolerance (±10%), dielectric material (polypropylene metallized), operating temperature range (-40°C to 70°C), package type (radial can), and termination style (quick connect/disconnect). The primary difference is product status: 23FD3755A-F is active production, while 23FD3755-F is obsolete. Mechanical dimensions are identical.

Q: What are the dimensional differences between SFS37T55K384B-F and 23FD3755-F?

A: The SFS37T55K384B-F has minor dimensional variations: diameter is 2.120" versus 2.125" (0.005" difference), height is 3.960" versus 4.000" (0.040" difference), and lead spacing is 0.810" versus 0.813" (0.003" difference). These variations fall within standard mechanical tolerances for chassis-mounted can capacitors and do not affect electrical performance or mechanical compatibility with standard holder/bracket assemblies.

Q: Are both substitute parts RoHS3 compliant?

A: Yes. Both 23FD3755A-F and SFS37T55K384B-F are ROHS3 compliant, matching the compliance status of the main part 23FD3755-F.

Q: What is the difference between the MPF and SF series?

A: The 23FD3755A-F belongs to the MPF series, while SFS37T55K384B-F belongs to the SF series. Both are Cornell Dubilier Electronics film capacitor lines with identical electrical specifications for this 55 µF, 370V AC application. The series designation reflects different product line classifications within the manufacturer's portfolio, but electrical and mechanical compatibility is maintained.

Q: Can these parts be used in motor run and power factor correction applications?

A: Yes. All three parts (23FD3755-F, 23FD3755A-F, and SFS37T55K384B-F) are specified for motor run and power factor correction (PFC) applications. The polypropylene metallized dielectric, 370V AC rating, and operating temperature range (-40°C to 70°C) support these application requirements.

Q: What mounting considerations apply to these capacitors?

A: All three parts require chassis mount installation with a holder/bracket assembly. The quick connect/disconnect termination style allows for tool-free installation and removal. The radial can package configuration requires vertical or angled mounting orientation with appropriate mechanical support.

Q: Are there inventory differences between the substitute parts?

A: Yes. Current inventory levels are: 23FD3755-F (721 pcs), 23FD3755A-F (1102 pcs), and SFS37T55K384B-F (903 pcs). The 23FD3755A-F has the highest inventory availability.

Q: What is the moisture sensitivity level for these parts?

A: The 23FD3755-F and 23FD3755A-F have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. The SFS37T55K384B-F has MSL listed as Not Applicable, also indicating no moisture sensitivity concerns.