Equivalent & Substitute Parts for Cornell Dubilier Electronics 32FD3701

Part Overview

The Cornell Dubilier Electronics 32FD3701 is a 1 µF film capacitor rated for 370V AC operation with polypropylene metallized dielectric construction. This component is classified as obsolete and is designed for motor run and power factor correction applications in chassis-mounted configurations requiring quick connect/disconnect termination.

Due to the obsolete product status of the 32FD3701, identifying equivalent and substitute parts is necessary for system maintenance, repair, and new design implementations where this capacitor specification is required or where higher voltage-rated alternatives provide enhanced operational margins.

Substiute Parts

32FD3701

Cornell Dubilier Electronics (CDE)In Stock: 96432FD3701 Datasheet

Current PartRFQ

SFA66T1K156B-F

Cornell Dubilier Electronics (CDE)In Stock: 985SFA66T1K156B-F Datasheet

DirectRFQ

SFA66T1K219B-F

Cornell Dubilier Electronics (CDE)In Stock: 1139SFA66T1K219B-F Datasheet

DirectRFQ

EEC2G105HQA401

NichiconIn Stock: 1117EEC2G105HQA401 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 32FD3701 is determined by the following critical parameters:

Primary Substitution Criteria:

• Capacitance value: 1 µF (exact match required)
• Dielectric material: Polypropylene (PP), Metallized (exact match required)
• Termination type: Quick Connect, Disconnect (exact match required)
• Package configuration: Radial, Can (exact match required)
• Mounting type: Chassis Mount (exact match required)
• Tolerance: ±10% (exact match required)

Secondary Substitution Criteria:

• Voltage rating: Equal to or greater than 370V AC
• Operating temperature range: Must encompass or exceed -40°C ~ 70°C
• Product status: Active status preferred for long-term availability
• Compliance certifications: RoHS3 compliance preferred for regulatory alignment

The substitute parts are grouped into two categories:

Direct Substitutes (Higher Voltage Rating): SFA66T1K156B-F and SFA66T1K219B-F maintain identical capacitance, tolerance, dielectric material, termination type, and mounting configuration while providing elevated voltage ratings (660V AC) and active product status.

Similar Substitute (Alternative Manufacturer): EEC2G105HQA401 from Nichicon maintains the same capacitance, tolerance, dielectric material, and termination type but differs in package configuration (rectangular box versus radial can) and voltage rating (400V AC).

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution with Enhanced Voltage Margin:

SFA66T1K156B-F and SFA66T1K219B-F are the primary substitutes for the 32FD3701. Both parts are manufactured by Cornell Dubilier Electronics and maintain identical electrical and mechanical specifications with the exception of elevated voltage ratings (660V AC versus 370V AC). The increased voltage rating provides operational margin in applications where the 32FD3701 was previously specified. Both substitutes carry active product status, ensuring long-term availability and supply chain continuity. Both parts are ROHS3 compliant, addressing regulatory requirements that the original 32FD3701 does not meet.

The distinction between SFA66T1K156B-F and SFA66T1K219B-F is the seated height: 1.680" (42.67mm) versus 2.310" (58.67mm) respectively. Selection between these two parts depends on available mounting space within the chassis assembly.

For Alternative Manufacturer Substitution:

EEC2G105HQA401 from Nichicon maintains the same capacitance, tolerance, dielectric material, and termination type as the 32FD3701. However, this part differs in three critical aspects: package configuration (rectangular box versus radial can), voltage rating (400V AC versus 370V AC), and mounting type (chassis mount without bracket requirement versus chassis mount with bracket requirement). This substitute is suitable only when the rectangular box package configuration is compatible with the existing mechanical design and when the 400V AC rating is acceptable for the application. EEC2G105HQA401 is also classified as obsolete, limiting its suitability for new designs requiring long-term component availability.

Frequently Asked Questions (FAQ)

Q: Can SFA66T1K156B-F or SFA66T1K219B-F be used as direct replacements for the 32FD3701?

A: Yes. Both SFA66T1K156B-F and SFA66T1K219B-F are direct substitutes for the 32FD3701. They maintain identical capacitance (1 µF), tolerance (±10%), dielectric material (polypropylene metallized), package type (radial can), mounting type (chassis mount with bracket), and termination type (quick connect/disconnect). The primary difference is the elevated voltage rating (660V AC versus 370V AC), which provides additional operational margin. The seated height differs between the two substitutes, requiring verification of available mounting space.

Q: What is the difference between SFA66T1K156B-F and SFA66T1K219B-F?

A: Both parts are electrically identical with the same capacitance, voltage rating, tolerance, and dielectric material. The only difference is the seated height: SFA66T1K156B-F has a maximum seated height of 1.680" (42.67mm), while SFA66T1K219B-F has a maximum seated height of 2.310" (58.67mm). Selection depends on the available vertical space in the chassis assembly.

Q: Why is the voltage rating higher on the substitute parts?

A: The substitute parts SFA66T1K156B-F and SFA66T1K219B-F are rated for 660V AC, compared to the 370V AC rating of the 32FD3701. This higher voltage rating does not change the electrical performance at the original 370V operating point but provides additional safety margin and operational headroom in the application circuit.

Q: Can EEC2G105HQA401 be used as a substitute for the 32FD3701?

A: EEC2G105HQA401 can be used as a substitute only if the rectangular box package configuration is mechanically compatible with the existing design. The 32FD3701 uses a radial can package, while EEC2G105HQA401 uses a rectangular box package. Additionally, EEC2G105HQA401 has a 400V AC rating (versus 370V AC) and does not require a holder/bracket for mounting. EEC2G105HQA401 is classified as obsolete, making it unsuitable for applications requiring long-term component availability.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both SFA66T1K156B-F and SFA66T1K219B-F are ROHS3 compliant. EEC2G105HQA401 is also ROHS3 compliant. The original 32FD3701 is RoHS non-compliant. If regulatory compliance is a requirement, the substitute parts address this requirement.

Q: What is the lead spacing for each part?

A: The 32FD3701 has a lead spacing of 0.813" (20.64mm). Both SFA66T1K156B-F and SFA66T1K219B-F have a lead spacing of 0.810" (20.57mm), which is functionally equivalent for mounting purposes. EEC2G105HQA401 does not specify lead spacing due to its rectangular box configuration.

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

A: Yes. SFA66T1K156B-F and SFA66T1K219B-F are specified for motor run applications. EEC2G105HQA401 is also specified for motor run applications. All substitute parts maintain the polypropylene metallized dielectric construction required for these application types.