Equivalent & Substitute Parts for 23FD3750-F Film Capacitor

Part Overview

The Cornell Dubilier Electronics (CDE) 23FD3750-F is a 50 µF film capacitor rated for 370V AC operation with polypropylene metallized dielectric construction. This component is designed for motor run and power factor correction (PFC) applications in industrial and commercial equipment. The part is classified as obsolete, making equivalent substitute parts necessary for ongoing maintenance, repair, and new design implementations where this specification is required.

Substiute Parts

23FD3750-F

Cornell Dubilier Electronics (CDE)In Stock: 79623FD3750-F Datasheet

Current PartRFQ

23FD3750A-F

Cornell Dubilier Electronics (CDE)In Stock: 120823FD3750A-F Datasheet

DirectRFQ

SFS37T50K384B-F

Cornell Dubilier Electronics (CDE)In Stock: 965SFS37T50K384B-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 23FD3750-F is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance: 50 µF
• Tolerance: ±10%
• Voltage Rating (AC): 370V
• Dielectric Material: Polypropylene (PP), Metallized

Mechanical Parameters (Non-Negotiable):

• Package Type: Radial, Can
• Mounting Type: Chassis Mount, Requires Holder/Bracket
• Termination: Quick Connect, Disconnect

Environmental & Compliance Parameters:

• Operating Temperature Range: -40°C to 70°C
• RoHS Status: ROHS3 Compliant

Both substitute parts (23FD3750A-F and SFS37T50K384B-F) meet all critical electrical and mechanical parameters. Minor dimensional variations in case diameter and height remain within acceptable tolerances for chassis-mounted applications using standard holder/bracket assemblies. Both substitutes are active products with current manufacturing status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

For 23FD3750A-F Selection: This substitute maintains identical electrical specifications and case diameter to the original 23FD3750-F. The part is in active production status with confirmed inventory availability (1144 pcs). Height variation of 0.090" (2.28mm) is accommodated within standard chassis-mount holder/bracket assemblies. ROHS3 compliance and REACH unaffected status confirm regulatory alignment for new equipment designs and replacements in regulated markets.

For SFS37T50K384B-F Selection: This substitute represents an alternative series (SF versus MPF) while maintaining all critical electrical parameters and mounting requirements. Case diameter and height dimensions show minimal variation (0.005" and 0.040" respectively) within acceptable mechanical tolerances for holder/bracket applications. Active production status with 918 pcs inventory ensures supply continuity. ROHS3 compliance and REACH unaffected status support deployment in regulated applications.

Selection Basis: Both substitutes are qualified based on product status (active versus obsolete), regulatory compliance certifications (ROHS3, REACH), and electrical/mechanical parameter equivalence. The choice between 23FD3750A-F and SFS37T50K384B-F depends on application-specific dimensional constraints and preferred series continuity within existing equipment platforms.

Frequently Asked Questions (FAQ)

Q: Can 23FD3750A-F directly replace 23FD3750-F in existing equipment?

A: Yes. Both parts share identical capacitance (50 µF), voltage rating (370V AC), tolerance (±10%), dielectric material (polypropylene metallized), operating temperature range (-40°C to 70°C), and termination type (quick connect/disconnect). Case diameter is identical at 2.125" (53.98mm). Height difference of 0.090" is accommodated within standard chassis-mount holder/bracket assemblies used for radial can capacitors.

Q: What are the dimensional differences between substitutes?

A: 23FD3750A-F maintains the original case diameter (2.125") with a maximum seated height of 4.090" versus the original 4.000". SFS37T50K384B-F has a case diameter of 2.120" and height of 3.960". All three parts use lead spacing of approximately 0.81", compatible with standard holder/bracket mounting systems. These variations are within acceptable mechanical tolerances for chassis-mount applications.

Q: Are both substitutes suitable for motor run and power factor correction applications?

A: 23FD3750A-F is specified for both motor run and power factor correction (PFC) applications. SFS37T50K384B-F is specified for motor run applications. Both maintain the 370V AC rating and polypropylene metallized dielectric required for these industrial applications.

Q: What is the inventory status of substitute parts?

A: 23FD3750A-F has 1144 pcs in stock (active product status). SFS37T50K384B-F has 918 pcs in stock (active product status). The original 23FD3750-F is obsolete with 693 pcs remaining inventory.

Q: Are both substitutes RoHS and REACH compliant?

A: Both 23FD3750A-F and SFS37T50K384B-F are ROHS3 compliant. Both are REACH unaffected. The original 23FD3750-F is ROHS3 compliant with REACH status not specified.

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

A: 23FD3750-F and 23FD3750A-F both have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. SFS37T50K384B-F has MSL rating listed as Not Applicable, consistent with film capacitor construction.

Q: Can SFS37T50K384B-F be used interchangeably with 23FD3750A-F?

A: Yes, for electrical performance. Both maintain 50 µF capacitance, 370V AC rating, ±10% tolerance, and polypropylene metallized dielectric. Mechanical mounting is compatible through standard holder/bracket assemblies. Series designation differs (SF versus MPF), but this reflects manufacturing series classification without affecting functional equivalence for the specified applications.