Equivalent & Substitute Parts for 32FD3701A-F

Part Overview

The 32FD3701A-F is a 1 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) from the MPF series, rated for 370V AC operation. This polypropylene metallized radial capacitor is designed for motor run and power factor correction applications in industrial equipment. The part is Active status with 663 units in stock inventory.

Substitute parts are identified when equivalent electrical performance can be achieved within the allowed parameter ranges for this product category, specifically when capacitance, tolerance, dielectric material, mounting type, and termination remain constant while voltage rating and physical dimensions may vary within acceptable limits.

Substiute Parts

32FD3701A-F

Cornell Dubilier Electronics (CDE)In Stock: 74232FD3701A-F 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

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 32FD3701A-F are qualified based on the following substitution criteria:

Constant Parameters (Must Match):

• Capacitance: 1 µF
• Tolerance: ±10%
• Dielectric Material: Polypropylene (PP), Metallized
• Mounting Type: Chassis Mount, Requires Holder/Bracket
• Package / Case: Radial, Can
• Termination: Quick Connect, Disconnect
• Operating Temperature Range: -40°C ~ 70°C
• Applications: Motor Run

Variable Parameters (Allowed to Differ):

• Voltage Rating - AC: Higher voltage ratings are acceptable for applications rated at 370V AC
• Physical Dimensions: Minor variations in length, width, and height are acceptable provided lead spacing remains compatible
• Series Designation: Different series from the same manufacturer are acceptable
• Inventory Status: Substitute availability does not affect substitution validity

The substitute parts SFA66T1K156B-F and SFA66T1K219B-F are from the SF series and feature 660V AC rating, which exceeds the 370V requirement of the main part. Both substitutes maintain identical capacitance, tolerance, dielectric material, mounting configuration, and termination type.

Parameter Comparison

Engineering Selection Recommendations

Substitution Validity:

Both SFA66T1K156B-F and SFA66T1K219B-F are valid substitutes for the 32FD3701A-F based on electrical equivalence. All three parts are Active status products from Cornell Dubilier Electronics with ROHS3 compliance and REACH unaffected status.

Voltage Rating Consideration:

The substitute parts feature 660V AC rating compared to the 370V AC rating of the main part. Higher voltage-rated capacitors are electrically compatible with lower voltage applications. The 660V rating provides additional voltage margin in the circuit.

Physical Dimension Differences:

SFA66T1K156B-F has a maximum seated height of 1.680" (42.67mm), which is lower than the main part's 2.440" (61.98mm). SFA66T1K219B-F has a maximum seated height of 2.310" (58.67mm), which is comparable to the main part. Lead spacing for both substitutes is 0.810" (20.57mm) versus 0.813" (20.64mm) for the main part, representing a 0.03mm difference within typical mechanical tolerance.

Compliance Status:

All three parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory equivalence for industrial applications.

Frequently Asked Questions (FAQ)

Q: Can SFA66T1K156B-F and SFA66T1K219B-F be used interchangeably with 32FD3701A-F?

A: Yes, both substitute parts are electrically equivalent to the main part. The primary difference is the higher 660V AC voltage rating and variations in physical height. Selection between the three parts depends on available space in the chassis mount configuration and inventory availability.

Q: What is the significance of the higher 660V AC rating on the substitute parts?

A: The 660V AC rating on SFA66T1K156B-F and SFA66T1K219B-F exceeds the 370V AC requirement of the main part. This higher rating provides additional voltage safety margin and does not affect performance in 370V AC applications.

Q: Are there differences in lead spacing between the main part and substitutes?

A: Lead spacing is 0.813" (20.64mm) for the main part and 0.810" (20.57mm) for both substitutes, a difference of 0.03mm. This variation is within standard mechanical tolerance for radial can capacitors with quick connect termination.

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

A: 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). The choice between these two depends on available vertical space in the chassis mount assembly.

Q: Do all three parts have the same operating temperature range?

A: Yes, all three parts operate within -40°C to 70°C, ensuring thermal equivalence across the product range.

Q: Are there any compliance differences between the main part and substitutes?

A: No. All three parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.