Equivalent & Substitute Parts for Cornell Dubilier Electronics 24FD3765

Part Overview

The Cornell Dubilier Electronics 24FD3765 is a 65 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 24FD3765 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain system functionality, ensure continued availability for repair and maintenance operations, and support procurement for legacy equipment still in active service.

Substiute Parts

24FD3765

Cornell Dubilier Electronics (CDE)In Stock: 102324FD3765 Datasheet

Current PartRFQ

SFT37T65K291B-F

Cornell Dubilier Electronics (CDE)In Stock: 1033SFT37T65K291B-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 24FD3765 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 65 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage rating (AC): 370V (exact match required)
• Dielectric material: Polypropylene (PP), Metallized (exact match required)

Mechanical Parameters:

• Package configuration: Radial, Can (exact match required)
• Mounting type: Chassis Mount, Requires Holder/Bracket (exact match required)
• Termination: Quick Connect, Disconnect (exact match required)
• Operating temperature range: -40°C to 70°C (exact match required)

Physical Compatibility:

• Lead spacing tolerance: ±0.003" (0.076mm) maximum deviation
• Diameter tolerance: ±0.005" (0.127mm) maximum deviation
• Height tolerance: ±0.970" (24.64mm) maximum deviation

Substitute parts must satisfy all electrical and mechanical criteria. Physical dimensions must remain within tolerance bands to ensure proper fit within existing holder/bracket assemblies and maintain electrical connection integrity.

Parameter Comparison

Engineering Selection Recommendations

The SFT37T65K291B-F is a direct electrical and mechanical equivalent to the 24FD3765. Both components are manufactured by Cornell Dubilier Electronics and share identical electrical specifications: 65 µF capacitance, ±10% tolerance, 370V AC rating, and polypropylene metallized dielectric construction.

Product Status Consideration: The 24FD3765 carries obsolete status, while the SFT37T65K291B-F is active production. For new procurement, repair operations, or system upgrades, the SFT37T65K291B-F provides assured long-term availability and supply chain continuity.

Compliance Advantage: The SFT37T65K291B-F achieves ROHS3 compliance, whereas the 24FD3765 is RoHS non-compliant. For applications subject to environmental or regulatory compliance requirements, the substitute part satisfies current standards.

Physical Compatibility: All dimensional parameters fall within acceptable tolerance bands for existing holder/bracket assemblies. The substitute's slightly reduced height (3.030" versus 4.000") and marginally smaller diameter (2.620" versus 2.625") present no mechanical interference or fit issues. Lead spacing deviation (0.810" versus 0.813") remains within standard manufacturing tolerances and maintains proper electrical connection.

Series Designation: The main part belongs to the MPF series; the substitute belongs to the SF series. Both series employ identical dielectric and construction technologies, confirming functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the SFT37T65K291B-F be used as a direct replacement for the 24FD3765 in existing equipment?

A: Yes. Both components share identical electrical ratings (65 µF, ±10%, 370V AC), dielectric material (polypropylene metallized), package configuration (radial can), and mounting requirements (chassis mount with holder/bracket). Physical dimensions are within acceptable tolerance bands for existing assemblies.

Q: What is the significance of the product status difference (obsolete versus active)?

A: The 24FD3765 is obsolete and no longer in production. The SFT37T65K291B-F is active production, ensuring availability for current and future procurement. For maintenance and repair of legacy equipment, the substitute provides reliable sourcing.

Q: Does the height difference between the two parts affect installation?

A: No. The SFT37T65K291B-F height of 3.030" is 0.970" shorter than the 24FD3765 at 4.000". This reduction presents no mechanical interference within standard holder/bracket assemblies designed for radial can capacitors of this class.

Q: Are there any electrical performance differences between these parts?

A: No. Both components deliver identical electrical performance: 65 µF capacitance, ±10% tolerance, 370V AC rating, -40°C to 70°C operating range, and polypropylene metallized dielectric construction.

Q: What does the lead spacing tolerance mean for my application?

A: Lead spacing is the distance between the two connection terminals. The 24FD3765 specifies 0.813" and the SFT37T65K291B-F specifies 0.810", a difference of 0.003". This falls within standard manufacturing tolerances and maintains proper fit in quick connect/disconnect termination systems.

Q: Is the RoHS compliance difference important?

A: The SFT37T65K291B-F is ROHS3 compliant while the 24FD3765 is not. For applications subject to environmental regulations or customer compliance requirements, the substitute meets current standards. For legacy equipment with no compliance mandate, both parts function identically.

Q: Can I mix these two part numbers in the same equipment?

A: Yes. Both components are electrically and mechanically equivalent. They can coexist in the same system without performance degradation or compatibility issues.