Equivalent & Substitute Parts for 32FB4403-F Film Capacitor

Part Overview

The 32FB4403-F is a 3 µF film capacitor rated for 440V AC operation, manufactured by Cornell Dubilier Electronics (CDE) in the MPF series. This component is designed for motor run and power factor correction (PFC) applications, featuring polypropylene (PP) metallized dielectric construction with radial, can-style packaging and quick connect/disconnect termination.

The 32FB4403-F carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain system functionality and ensure continued availability for replacement and maintenance applications. Active alternatives from CDE's current product lines provide direct functional equivalence while maintaining compliance with RoHS3 and REACH standards.

Key Parameters

Parameter	Value
Capacitance	3 µF
Tolerance	±10%
Voltage Rating (AC)	440V
Dielectric Material	Polypropylene (PP), Metallized
Operating Temperature Range	-40°C to 70°C
Mounting Type	Chassis Mount, Requires Holder/Bracket
Package / Case	Radial, Can
Termination	Quick Connect, Disconnect
Lead Spacing	0.813" (20.64mm)
Applications	Motor Run, Power Factor Correction (PFC)
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 32FB4403-F is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 3 µF
Tolerance: ±10%
Voltage Rating (AC): 440V
Dielectric Material: Polypropylene (PP), Metallized
Operating Temperature Range: -40°C to 70°C
Mounting Type: Chassis Mount, Requires Holder/Bracket
Package / Case: Radial, Can
Termination: Quick Connect, Disconnect
RoHS3 Compliance

All identified substitute parts meet these mandatory parameters. Variations in physical dimensions (length, width, height) and lead spacing remain within acceptable tolerances for chassis-mounted applications using standard holder/bracket configurations. The transition from obsolete (32FB4403-F, MPF series) to active product lines (32FB4403A-F, MPF series; SFA44T3K156B-F, SFA44T3K209B-F, SFA44T3K219B-F, SF series) ensures continued component availability and regulatory compliance.

Parameter Comparison

Parameter	32FB4403-F (Main)	32FB4403A-F	SFA44T3K156B-F	SFA44T3K209B-F	SFA44T3K219B-F
Manufacturer	CDE	CDE	CDE	CDE	CDE
Series	MPF	MPF	SF	SF	SF
Product Status	Obsolete	Active	Active	Active	Active
Capacitance	3 µF	3 µF	3 µF	3 µF	3 µF
Tolerance	±10%	±10%	±10%	±10%	±10%
Voltage Rating (AC)	440V	440V	440V	440V	440V
Dielectric Material	PP, Metallized	PP, Metallized	PP, Metallized	PP, Metallized	PP, Metallized
Operating Temperature	-40°C ~ 70°C	-40°C ~ 70°C	-40°C ~ 70°C	-40°C ~ 70°C	-40°C ~ 70°C
Mounting Type	Chassis Mount, Requires Holder/Bracket	Chassis Mount, Requires Holder/Bracket	Chassis Mount, Requires Holder/Bracket	Chassis Mount, Requires Holder/Bracket	Chassis Mount, Requires Holder/Bracket
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Termination	Quick Connect, Disconnect	Quick Connect, Disconnect	Quick Connect, Disconnect	Quick Connect, Disconnect	Quick Connect, Disconnect
Lead Spacing	0.813" (20.64mm)	0.813" (20.64mm)	0.810" (20.57mm)	0.810" (20.57mm)	0.810" (20.57mm)
Height - Seated (Max)	2.630" (66.80mm)	2.440" (61.98mm)	1.680" (42.67mm)	2.210" (56.13mm)	2.210" (56.13mm)
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
Inventory Status	857 Pcs New Original	738 Pcs New Original	663 Pcs New Original	863 Pcs New Original	1059 Pcs New Original

Engineering Selection Recommendations

Primary Recommendation: 32FB4403A-F

The 32FB4403A-F is the direct successor to the obsolete 32FB4403-F within CDE's MPF series. This part maintains identical electrical specifications and operating parameters while carrying active product status. The 32FB4403A-F features a reduced seated height (2.440" versus 2.630"), which may provide improved fit in space-constrained applications. This part is suitable for direct replacement in existing designs without modification.

Secondary Recommendations: SFA44T3K156B-F, SFA44T3K209B-F, SFA44T3K219B-F

These parts represent CDE's SF series alternatives, offering the same electrical performance and compliance profile. The SF series components feature slightly reduced lead spacing (0.810" versus 0.813") and varying seated heights:

SFA44T3K156B-F: 1.680" seated height (most compact)
SFA44T3K209B-F: 2.210" seated height
SFA44T3K219B-F: 2.210" seated height

Selection among SF series alternatives depends on available mounting space. All SF series parts carry active product status and RoHS3 compliance. Lead spacing variation of 0.003" (0.07mm) is negligible for standard holder/bracket configurations.

Compliance Considerations:

All substitute parts maintain RoHS3 compliance and REACH unaffected status, ensuring regulatory alignment with current environmental and safety standards. MSL rating of 1 (unlimited) for 32FB4403A-F and not applicable for SF series parts indicates no moisture sensitivity constraints during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can the 32FB4403-F be directly replaced with 32FB4403A-F?

A: Yes. The 32FB4403A-F is the active-status successor within the same MPF series, maintaining identical electrical specifications, voltage rating, capacitance, tolerance, dielectric material, operating temperature range, and termination type. The reduced seated height (2.440" versus 2.630") may require verification of available mounting space.

Q: What is the difference between MPF series (32FB4403A-F) and SF series (SFA44T3K156B-F, SFA44T3K209B-F, SFA44T3K219B-F) parts?

A: Both series provide identical electrical performance for this application. The primary differences are physical dimensions and seated heights. MPF series maintains the original form factor, while SF series offers compact alternatives with varying heights. Lead spacing differs by 0.003" (0.07mm), which is compatible with standard holder/bracket systems.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts carry RoHS3 compliance certification, meeting current environmental regulations for electronic components.

Q: What is the significance of lead spacing variation (0.813" versus 0.810")?

A: The 0.003" (0.07mm) difference in lead spacing between MPF and SF series is negligible for chassis-mounted applications using standard holder/bracket configurations. This variation does not affect electrical performance or mechanical compatibility with typical mounting hardware.

Q: Which substitute part offers the best availability?

A: SFA44T3K219B-F currently has the highest inventory level at 1,059 pieces in stock, followed by SFA44T3K209B-F at 863 pieces. Both parts are active-status products with full RoHS3 compliance.

Q: Can SF series parts be used in applications originally designed for MPF series?

A: Yes, provided mounting space accommodates the physical dimensions. All SF series alternatives maintain identical electrical specifications, voltage rating, capacitance, tolerance, dielectric material, operating temperature range, and termination type. Verify available height clearance for the selected SF variant before installation.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the same temperature range: -40°C to 70°C, matching the original 32FB4403-F specification.

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