37FB4415-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The 37FB4415-F is a 15 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 metallized dielectric construction with radial, can-style packaging and quick connect/disconnect termination.

The 37FB4415-F is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain system functionality, ensure supply chain continuity, and support ongoing maintenance and replacement requirements for equipment utilizing this component.

Substiute Parts

37FB4415-F

Cornell Dubilier Electronics (CDE)In Stock: 82137FB4415-F Datasheet

Current PartRFQ

37FB4415A-F

Cornell Dubilier Electronics (CDE)In Stock: 76237FB4415A-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 37FB4415-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 15 µF
• Voltage rating (AC) must equal or exceed 440V
• Tolerance must be ±10% or tighter
• Dielectric material must be polypropylene (PP), metallized
• Operating temperature range must encompass -40°C ~ 70°C

Mechanical Parameters (Non-Negotiable):

• Package type must be radial, can configuration
• Mounting type must be chassis mount with holder/bracket compatibility
• Lead spacing must equal 0.813" (20.64mm)
• Termination must be quick connect/disconnect

Compliance Parameters:

• RoHS3 compliance required
• Moisture sensitivity level (MSL) of 1 or equivalent

Parts meeting all these criteria are classified as direct substitutes. Variations in height or minor dimensional differences that do not affect mounting or electrical performance are acceptable within engineering tolerances.

Parameter Comparison

Engineering Selection Recommendations

The 37FB4415A-F is a direct substitute for the 37FB4415-F based on the following engineering criteria:

Electrical Compatibility: Both parts are identical in capacitance (15 µF), voltage rating (440V AC), tolerance (±10%), dielectric material (polypropylene metallized), and operating temperature range (-40°C ~ 70°C). These parameters determine circuit functionality and are fully matched.

Mechanical Compatibility: Both parts share identical mounting type (chassis mount with holder/bracket), package configuration (radial can), lead spacing (0.813" / 20.64mm), and termination method (quick connect/disconnect). Physical installation compatibility is confirmed.

Dimensional Consideration: The 37FB4415A-F has a maximum seated height of 2.630" (66.80mm) compared to the 37FB4415-F at 2.880" (73.15mm). This 0.250" (6.35mm) reduction in height does not affect electrical performance and may provide improved clearance in space-constrained applications. Length and width dimensions are equivalent within manufacturing tolerance.

Compliance and Availability: The 37FB4415A-F is ROHS3 compliant and carries active product status with 725 units in stock, compared to the obsolete 37FB4415-F with 731 units. The substitute part ensures long-term supply chain viability and regulatory compliance for new installations and replacements.

Selection Basis: The 37FB4415A-F is recommended as the primary substitute due to identical electrical and mechanical specifications, improved availability, and active product status. No performance degradation or functional limitation is introduced by this substitution.

Frequently Asked Questions (FAQ)

Q: Can the 37FB4415A-F be used as a direct replacement for the 37FB4415-F in existing equipment?

A: Yes. The 37FB4415A-F meets all electrical and mechanical specifications of the 37FB4415-F. Capacitance, voltage rating, tolerance, dielectric material, operating temperature, mounting type, package configuration, lead spacing, and termination are identical. The substitute part is electrically and mechanically compatible for direct replacement.

Q: What is the significance of the height difference between these two parts?

A: The 37FB4415A-F has a maximum seated height of 2.630" (66.80mm) versus 2.880" (73.15mm) for the 37FB4415-F. This 0.250" (6.35mm) reduction does not affect electrical performance or circuit operation. The shorter height may provide additional clearance in applications with space constraints. Mounting compatibility remains unchanged.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts are ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity level). No compliance or regulatory differences exist. Both parts meet the same environmental and safety standards.

Q: Why is the 37FB4415-F listed as obsolete while the 37FB4415A-F is active?

A: The 37FB4415-F has reached end-of-life status in the manufacturer's product portfolio. The 37FB4415A-F represents the current production equivalent within the MPF series. Substituting the active part ensures continued availability and support for future maintenance and replacement needs.

Q: Are the lead spacing and termination method identical?

A: Yes. Both parts have lead spacing of 0.813" (20.64mm) and quick connect/disconnect termination. PCB hole patterns and connection methods are identical, requiring no modification to existing mounting hardware or connection points.

Q: Can the 37FB4415A-F be used in motor run and power factor correction (PFC) applications?

A: Yes. Both parts are rated for motor run and power factor correction applications. The 15 µF capacitance, 440V AC rating, polypropylene metallized dielectric, and operating temperature range (-40°C ~ 70°C) are suitable for these applications in both parts.