Equivalent & Substitute Parts for 24FB4455-F Film Capacitor

Part Overview

The 24FB4455-F is a 55 µF film capacitor rated for 440V AC operation, manufactured by Cornell Dubilier Electronics (CDE) from the MPF series. This component is designed for motor run and power factor correction (PFC) applications, featuring polypropylene metallized dielectric construction with radial can packaging and quick connect termination.

The 24FB4455-F is classified as obsolete. Identifying equivalent substitute parts ensures continued availability for maintenance, repair, and new production applications where this capacitor specification is required.

Substiute Parts

24FB4455-F

Cornell Dubilier Electronics (CDE)In Stock: 101824FB4455-F Datasheet

Current PartRFQ

24FB4455A-F

Cornell Dubilier Electronics (CDE)In Stock: 88224FB4455A-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 24FB4455-F are identified based on strict electrical and mechanical parameter matching. The substitution logic is as follows:

Electrical Parameters (Non-Negotiable):

• Capacitance value must equal 55 µF
• Voltage rating (AC) must equal 440V
• Tolerance must equal ±10%
• Dielectric material must be Polypropylene (PP), Metallized

Mechanical Parameters (Non-Negotiable):

• Package type must be Radial, Can
• Mounting type must be Chassis Mount with Holder/Bracket requirement
• Lead spacing must equal 0.813" (20.64mm)
• Termination must be Quick Connect, Disconnect

Environmental & Compliance Parameters:

• Operating temperature range must encompass -40°C ~ 70°C
• RoHS3 compliance required

The 24FB4455-F has one identified substitute: 24FB4455A-F. This substitute maintains all critical electrical and mechanical parameters while differing only in product status (Active vs. Obsolete) and physical height dimension.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 24FB4455A-F

The 24FB4455A-F is the direct equivalent substitute for the obsolete 24FB4455-F. Selection of this substitute is based on the following engineering criteria:

1. Electrical Equivalence: All critical electrical parameters are identical, including capacitance (55 µF), voltage rating (440V AC), tolerance (±10%), and dielectric material (Polypropylene, Metallized).

2. Mechanical Compatibility: Lead spacing (0.813"), mounting type (Chassis Mount with Holder/Bracket), package form (Radial, Can), and termination method (Quick Connect, Disconnect) are identical, ensuring direct mechanical compatibility with existing mounting hardware and circuit board layouts.

3. Product Status: The 24FB4455A-F is classified as Active, ensuring continued availability and supply chain reliability compared to the Obsolete status of the 24FB4455-F.

4. Regulatory Compliance: Both parts maintain ROHS3 compliance and identical moisture sensitivity levels (MSL 1), meeting current environmental and regulatory requirements.

5. Physical Dimension Consideration: The 24FB4455A-F has a maximum seated height of 4.160" (105.66mm) compared to 3.250" (82.55mm) for the 24FB4455-F. This dimensional difference must be verified against available space in the target application enclosure or mounting bracket before final selection.

6. Certification Alignment: Both parts share identical ECCN (EAR99) and HTSUS (8532.25.0020) classifications, maintaining export and tariff compliance.

Frequently Asked Questions (FAQ)

Q1: Can the 24FB4455A-F be used as a direct replacement for the 24FB4455-F?

A: Yes, the 24FB4455A-F is electrically and mechanically equivalent to the 24FB4455-F for all critical parameters. The primary consideration is the increased height dimension (4.160" vs. 3.250"). Verify that the available mounting space accommodates the taller profile before installation.

Q2: What is the key difference between these two parts?

A: The primary differences are product status (24FB4455A-F is Active; 24FB4455-F is Obsolete) and physical height (24FB4455A-F is 0.910" taller). All electrical specifications and lead spacing are identical.

Q3: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, share identical moisture sensitivity levels (MSL 1), and have the same ECCN and HTSUS classifications.

Q4: What applications are these capacitors suitable for?

A: Both parts are specified for motor run and power factor correction (PFC) applications requiring 440V AC operation with 55 µF capacitance.

Q5: What is the operating temperature range?

A: Both parts operate across -40°C to 70°C, suitable for industrial and general-purpose motor applications.

Q6: How critical is the lead spacing specification?

A: Lead spacing of 0.813" (20.64mm) is critical for mechanical compatibility with existing mounting brackets and quick connect terminals. Both parts maintain identical spacing, ensuring direct compatibility.

Q7: What mounting hardware is required?

A: Both parts require a chassis mount holder or bracket. The quick connect/disconnect termination allows for tool-free connection and disconnection from standard motor run capacitor terminals.

Q8: Is the height difference significant for my application?

A: The 24FB4455A-F is 0.910" (23.11mm) taller than the 24FB4455-F. Verify available vertical space in your enclosure or mounting location. If space is constrained, contact the manufacturer for alternative configurations.