37FD3740-F Film Capacitor 40µF 370VAC

Part Overview

The 37FD3740-F is a 40 µF film capacitor rated for 370V AC operation, manufactured by Cornell Dubilier Electronics (CDE) in the MPF series. This component utilizes polypropylene (PP) metallized dielectric technology in a radial, can-style package configured for chassis mounting with quick-connect termination. The part is classified as obsolete, necessitating identification of suitable active alternatives that maintain functional and physical compatibility for motor run and power factor correction applications.

Substiute Parts

37FD3740-F

Cornell Dubilier Electronics (CDE)In Stock: 90837FD3740-F Datasheet

Current PartRFQ

37FD3740A-F

Cornell Dubilier Electronics (CDE)In Stock: 86037FD3740A-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 37FD3740A-F qualifies as a direct substitute for the 37FD3740-F based on electrical and mechanical parameter alignment. Substitution eligibility is determined by strict compliance with the following critical parameters:

• Capacitance: 40 µF (exact match)
• Voltage Rating - AC: 370V (exact match)
• Tolerance: ±10% (exact match)
• Dielectric Material: Polypropylene (PP), Metallized (exact match)
• Mounting Type: Chassis Mount, Requires Holder/Bracket (exact match)
• Package / Case: Radial, Can (exact match)
• Termination: Quick Connect, Disconnect (exact match)
• Operating Temperature Range: -40°C ~ 70°C (exact match)
• Lead Spacing: 0.813" (20.64mm) (exact match)
• RoHS Status: ROHS3 Compliant (exact match)

The substitute part maintains identical electrical performance and mechanical footprint compatibility, with minor dimensional variations within manufacturing tolerance (height difference of 0.160" / 4.06mm and length/width variations less than 0.01mm).

Parameter Comparison

Engineering Selection Recommendations

The 37FD3740A-F is the appropriate selection for new designs and replacement applications requiring a 40 µF, 370V AC film capacitor in radial can configuration. This part maintains active product status within the CDE MPF series, ensuring ongoing availability and manufacturing support. Both the original 37FD3740-F and substitute 37FD3740A-F meet ROHS3 compliance requirements, suitable for applications subject to environmental regulations. The substitute part has been designed as a direct replacement with equivalent electrical characteristics and mechanical compatibility, supporting seamless integration into existing motor run and power factor correction circuits.

Frequently Asked Questions (FAQ)

Q: Can the 37FD3740A-F directly replace the 37FD3740-F in existing applications?

A: Yes. The substitute part shares identical electrical specifications (40 µF, 370V AC, ±10% tolerance) and mechanical characteristics (radial can package, quick-connect termination, 0.813" lead spacing). Physical dimensions are within manufacturing tolerance, with the substitute measuring 0.160" (4.06mm) taller. Circuit performance and mounting compatibility are preserved.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant with matching ECCN (EAR99) and HTSUS (8532.25.0020) classifications. No compliance restrictions differentiate the two components for equivalent applications.

Q: Why is the original part marked as obsolete?

A: The 37FD3740-F has been superseded by the 37FD3740A-F in the CDE product line. The substitute maintains backward compatibility while offering active product status, ensuring continued supply and technical support.

Q: Does the height difference affect installation?

A: The substitute is 0.160" (4.06mm) taller. Verify adequate clearance in the chassis mounting configuration. If space constraints exist, mechanical accommodation or housing modifications may be required.

Q: What applications are supported by this capacitor?

A: Both parts are specified for motor run and power factor correction (PFC) applications in AC circuits rated for 370V operation.