Cornell Dubilier Electronics 38FB4425-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The Cornell Dubilier Electronics 38FB4425-F is a 25 µF film capacitor rated for 440V AC operation with polypropylene metallized dielectric construction. This component is designed for motor run and power factor correction (PFC) applications in industrial and commercial equipment. The part is classified as obsolete, making identification of equivalent and substitute components essential for system maintenance, repair, and redesign projects. Active equivalent models provide direct functional replacement with improved availability and current manufacturing status.

Substiute Parts

38FB4425-F

Cornell Dubilier Electronics (CDE)In Stock: 118038FB4425-F Datasheet

Current PartRFQ

38FB4425A-F

Cornell Dubilier Electronics (CDE)In Stock: 95938FB4425A-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 38FB4425-F is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance value: 25 µF
• Tolerance: ±10%
• Voltage rating (AC): 440V
• Dielectric type: Polypropylene (PP), Metallized

Mechanical Parameters (Non-Negotiable):

• Package type: Radial, Can
• Mounting configuration: Chassis Mount, Requires Holder/Bracket
• Termination style: Quick Connect, Disconnect
• Lead spacing: 0.813" (20.64mm)

Environmental & Compliance Parameters:

• Operating temperature range: -40°C to 70°C
• RoHS3 compliance
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must match all electrical and mechanical parameters exactly. Dimensional variations within manufacturing tolerances are acceptable provided lead spacing and mounting requirements remain unchanged.

Parameter Comparison

Engineering Selection Recommendations

The Cornell Dubilier Electronics 38FB4425A-F is a direct functional equivalent to the obsolete 38FB4425-F. Both components are manufactured by the same supplier within the MPF series and share identical electrical specifications, mechanical mounting requirements, and environmental ratings.

Selection Basis:

The 38FB4425A-F is recommended as the primary substitute due to:

1. Product Status: The substitute part maintains Active status, ensuring continued availability and manufacturing support. The original 38FB4425-F is classified as Obsolete, limiting future procurement options.

2. Electrical Equivalence: All critical electrical parameters are identical, including capacitance (25 µF), tolerance (±10%), voltage rating (440V AC), and dielectric composition (Polypropylene, Metallized).

3. Mechanical Compatibility: Lead spacing (0.813"), termination style (Quick Connect, Disconnect), and mounting configuration (Chassis Mount, Requires Holder/Bracket) are identical, ensuring direct installation compatibility.

4. Compliance Certification: Both parts maintain ROHS3 compliance and identical Moisture Sensitivity Level (MSL 1 - Unlimited), meeting current regulatory and environmental standards.

5. Dimensional Tolerance: Minor dimensional variations in length (0.002" difference) and height (0.160" difference) fall within acceptable manufacturing tolerances and do not affect functional performance or mechanical fit.

6. Application Continuity: Both components are rated for identical applications: Motor Run and Power Factor Correction (PFC) in industrial equipment.

Frequently Asked Questions (FAQ)

Q: Can the 38FB4425A-F be used as a direct replacement for the 38FB4425-F in existing equipment?

A: Yes. The 38FB4425A-F is a direct functional equivalent with identical electrical specifications, mechanical mounting requirements, and environmental ratings. Installation compatibility is maintained through identical lead spacing and termination style.

Q: What is the significance of the product status change from Obsolete to Active?

A: The 38FB4425A-F maintains Active manufacturing status, ensuring continued availability, consistent quality control, and long-term supply chain reliability. The original 38FB4425-F is Obsolete, indicating discontinued production and limited future procurement options.

Q: Are there dimensional differences between these two parts?

A: Minor dimensional variations exist: length differs by 0.002" (0.06mm) and height by 0.160" (4.06mm). These variations fall within acceptable manufacturing tolerances and do not affect mechanical fit, electrical performance, or mounting compatibility.

Q: Do both parts meet current environmental and compliance standards?

A: Yes. Both the 38FB4425-F and 38FB4425A-F are ROHS3 compliant with identical Moisture Sensitivity Level (MSL 1 - Unlimited) ratings, meeting current regulatory requirements.

Q: What applications are these capacitors designed for?

A: Both components are rated for Motor Run and Power Factor Correction (PFC) applications in industrial and commercial equipment operating at 440V AC.

Q: Is the Quick Connect, Disconnect termination compatible with standard motor run capacitor installations?

A: Yes. The Quick Connect, Disconnect termination is standard for motor run and PFC capacitors in chassis-mounted applications requiring holder/bracket support.

Q: Can these capacitors operate across the full -40°C to 70°C temperature range?

A: Yes. Both components are rated for continuous operation across the -40°C to 70°C temperature range, suitable for indoor industrial environments.