Equivalent & Substitute Parts for CDE 32FB4402 Film Capacitor

Part Overview

The Cornell Dubilier Electronics (CDE) 32FB4402 is a 2 µF film capacitor rated for 440V AC operation with polypropylene (PP) metallized dielectric construction. This radial, can-style component is designed for motor run and power factor correction (PFC) applications requiring chassis mount installation with a holder or bracket.

The 32FB4402 carries an obsolete product status. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications currently utilizing this component. Active alternative models from the CDE SF series provide functional equivalence with updated compliance certifications and improved availability.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	2 µF	Core electrical specification; must match exactly
Voltage Rating (AC)	440V	Determines voltage class; substitutes must meet or exceed this rating
Tolerance	±10%	Acceptable capacitance variation; must be equivalent or tighter
Dielectric Material	Polypropylene (PP), Metallized	Defines electrical characteristics and temperature stability
Mounting Type	Chassis Mount, Requires Holder/Bracket	Installation method; must be compatible with existing mechanical design
Termination	Quick Connect, Disconnect	Connection interface; must match circuit board or harness design
Operating Temperature Range	-40°C to 70°C	Thermal operating envelope; substitutes must cover this range
Applications	Motor Run; Power Factor Correction (PFC)	Intended use cases; substitutes must support these applications

Substitute Part Grouping Explanation

Substitute parts for the 32FB4402 are classified into two voltage categories based on the allowed electrical parameters:

440V AC Voltage Class (Direct Functional Equivalents)

Parts SFA44T2K156B-F and SFA44T2K219B-F maintain the 440V AC rating of the original component. These substitutes are from the active CDE SF series and provide identical electrical performance with ROHS3 compliance. The primary difference between these two models is the seated height: SFA44T2K156B-F measures 1.680" (42.67mm) while SFA44T2K219B-F measures 2.150" (54.61mm). Selection between these depends on available vertical space in the chassis mount assembly.

660V AC Voltage Class (Higher Voltage Alternatives)

Parts SFA66S2K156B, SFA66S2K219B, SFA66T2K156B-F, and SFA66T2K219B-F operate at 660V AC, exceeding the original 440V specification. These components are electrically compatible for 440V applications due to voltage derating principles. The "S" designation (SFA66S models) indicates non-compliant RoHS status, while the "T" designation with "-F" suffix (SFA66T2K models) indicates ROHS3 compliance. Height variants exist within this group: 1.680" (42.67mm) for the 156B models and 2.310" (58.67mm) for the 219B models.

Key Substitution Parameters:

Capacitance: 2 µF (fixed across all substitutes)
Tolerance: ±10% (consistent across all options)
Dielectric: Polypropylene (PP), Metallized (unchanged)
Termination: Quick Connect, Disconnect (maintained)
Operating Temperature: -40°C to 70°C (consistent)
Lead Spacing: 0.810" to 0.813" (mechanically compatible)
Mounting: Chassis Mount, Requires Holder/Bracket (unchanged)

Parameter Comparison

Parameter	32FB4402 (Main)	SFA44T2K156B-F	SFA44T2K219B-F	SFA66T2K156B-F	SFA66T2K219B-F
Manufacturer	CDE	CDE	CDE	CDE	CDE
Series	MPF	SF	SF	SF	SF
Capacitance	2 µF	2 µF	2 µF	2 µF	2 µF
Tolerance	±10%	±10%	±10%	±10%	±10%
Voltage Rating (AC)	440V	440V	440V	660V	660V
Dielectric Material	PP, Metallized	PP, Metallized	PP, Metallized	PP, Metallized	PP, Metallized
Operating Temperature	-40°C to 70°C	-40°C to 70°C	-40°C to 70°C	-40°C to 70°C	-40°C to 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
Height - Seated (Max)	2.380" (60.45mm)	1.680" (42.67mm)	2.150" (54.61mm)	1.680" (42.67mm)	2.310" (58.67mm)
Lead Spacing	0.813" (20.64mm)	0.810" (20.57mm)	0.810" (20.57mm)	0.810" (20.57mm)	0.810" (20.57mm)
Termination	Quick Connect, Disconnect	Quick Connect, Disconnect	Quick Connect, Disconnect	Quick Connect, Disconnect	Quick Connect, Disconnect
Applications	Motor Run; PFC	Motor Run	Motor Run	Motor Run	Motor Run
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct 440V AC Replacement (Preferred for Existing Designs)

Select SFA44T2K156B-F or SFA44T2K219B-F when the original 32FB4402 requires substitution in active production or field service applications. Both parts are from the active CDE SF series and carry ROHS3 compliance certification, addressing regulatory requirements that the obsolete 32FB4402 does not meet.

The choice between SFA44T2K156B-F (1.680" seated height) and SFA44T2K219B-F (2.150" seated height) depends on available vertical clearance within the chassis mount assembly. Verify that the selected height does not exceed the space allocated in the mechanical design. Both models maintain identical electrical performance and lead spacing (0.810"), ensuring functional compatibility with existing circuit board or harness connections.

For Higher Voltage Applications (660V AC Class)

Select SFA66T2K156B-F or SFA66T2K219B-F when the application permits operation at elevated voltage ratings or when 440V-rated components are unavailable. These 660V-rated substitutes are electrically compatible with 440V circuits through voltage derating and provide ROHS3 compliance. The height selection follows the same logic as the 440V class: 1.680" for SFA66T2K156B-F and 2.310" for SFA66T2K219B-F.

The 660V alternatives (SFA66S2K156B and SFA66S2K219B) are also electrically equivalent but carry non-compliant RoHS status. These should be selected only when ROHS3 compliance is not a design requirement and when the non-compliant RoHS designation is acceptable for the application's regulatory environment.

Compliance Considerations

All active substitute parts (SFA44T2K156B-F, SFA44T2K219B-F, SFA66T2K156B-F, SFA66T2K219B-F) are ROHS3 compliant and REACH unaffected. The obsolete 32FB4402 is RoHS non-compliant. Substitution with active, compliant parts aligns with current environmental and regulatory standards for electronic component manufacturing and use.

Frequently Asked Questions (FAQ)

Q: Can SFA44T2K156B-F or SFA44T2K219B-F be used as direct replacements for the 32FB4402?

A: Yes. Both SFA44T2K156B-F and SFA44T2K219B-F are direct electrical equivalents for the 32FB4402. They maintain the same 2 µF capacitance, ±10% tolerance, 440V AC rating, polypropylene metallized dielectric, and quick connect/disconnect termination. The primary difference is seated height: verify that the selected model fits within the available vertical space in your chassis mount assembly.

Q: What is the difference between the 440V and 660V substitute options?

A: The 440V substitutes (SFA44T2K156B-F and SFA44T2K219B-F) match the original 32FB4402 voltage rating exactly. The 660V substitutes (SFA66T2K156B-F and SFA66T2K219B-F) are rated for higher voltage operation and are electrically compatible with 440V applications through voltage derating. Select 440V models for direct replacement; select 660V models only when higher voltage capability is required or when 440V models are unavailable.

Q: How do I choose between the 156B and 219B height variants?

A: The 156B models have a maximum seated height of 1.680" (42.67mm). The 219B models have a maximum seated height of 2.150" (54.61mm) for the 440V class and 2.310" (58.67mm) for the 660V class. Measure the vertical clearance available in your chassis mount assembly and select the variant that fits within that space. Both variants have identical electrical performance and lead spacing.

Q: Are the lead spacing dimensions compatible between the 32FB4402 and the substitute parts?

A: Yes. The 32FB4402 has a lead spacing of 0.813" (20.64mm). All substitute parts have a lead spacing of 0.810" (20.57mm). This 0.003" (0.07mm) difference is within standard mechanical tolerances for quick connect/disconnect termination systems and does not affect compatibility with existing circuit board or harness connections.

Q: What is the difference between SFA66S2K156B and SFA66T2K156B-F?

A: Both parts are 2 µF, 660V AC film capacitors with identical electrical specifications and 1.680" seated height. The primary difference is RoHS compliance status: SFA66S2K156B is RoHS non-compliant, while SFA66T2K156B-F is ROHS3 compliant. Select the ROHS3 compliant version (SFA66T2K156B-F) for applications requiring environmental and regulatory compliance. Select the non-compliant version only when compliance is not a design requirement.

Q: Can I use a 660V-rated capacitor in a 440V application?

A: Yes. A 660V-rated capacitor is electrically compatible with a 440V application through voltage derating. The higher voltage rating provides additional safety margin and does not negatively affect circuit performance. However, the physical dimensions (particularly seated height) must still be verified to ensure mechanical fit within the chassis mount assembly.

Q: What is the inventory status of these substitute parts?

A: All substitute parts listed are in active production with current inventory availability. SFA44T2K156B-F has 731 units in stock, SFA44T2K219B-F has 1,049 units, SFA66T2K156B-F has 1,116 units, and SFA66T2K219B-F has 1,196 units. The obsolete 32FB4402 has 1,183 units remaining in stock. Verify current availability with your supplier before finalizing procurement decisions.

Q: Are all substitute parts suitable for motor run and power factor correction applications?

A: All substitute parts are rated for motor run applications. The 32FB4402 is specifically rated for both motor run and power factor correction (PFC) applications. The substitute parts' technical specifications list motor run as the primary application. Confirm with the component manufacturer or your application engineer that the selected substitute meets all performance requirements for your specific PFC circuit design.

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