37FD37225-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The 37FD37225-F is a 22.5 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) from the MPF series, rated for 370V AC operation. 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 active equivalent substitutes essential for procurement and system maintenance. The radial can configuration with quick connect termination provides standard integration into chassis-mounted applications requiring holder or bracket support.

Substiute Parts

37FD37225-F

Cornell Dubilier Electronics (CDE)In Stock: 102937FD37225-F Datasheet

Current PartRFQ

37FD37225A-F

Cornell Dubilier Electronics (CDE)In Stock: 120937FD37225A-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 37FD37225-F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 22.5 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage rating (AC): 370V (exact match required)
• Dielectric material: Polypropylene (PP), Metallized (exact match required)
• Operating temperature range: -40°C to 70°C (exact match required)

Mechanical Parameters:

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

Compliance Parameters:

• RoHS3 Compliance (required for modern applications)
• Moisture Sensitivity Level 1 (unlimited shelf life)

The substitute part 37FD37225A-F meets all electrical, mechanical, and compliance requirements for direct substitution. The primary distinction is product status: the original part is obsolete while the substitute is active, with improved availability and current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The 37FD37225A-F is a direct electrical and mechanical equivalent to the 37FD37225-F. Selection of the substitute part is based on the following engineering factors:

Product Status: The original 37FD37225-F is classified as obsolete. The substitute 37FD37225A-F maintains active product status with current manufacturing support from Cornell Dubilier Electronics, ensuring long-term availability and supply chain reliability.

Compliance Certification: Both parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 rating, meeting modern environmental and handling requirements for industrial applications.

Physical Compatibility: The substitute part exhibits a 0.250" (6.35mm) reduction in seated height (66.80mm versus 73.15mm). This dimensional difference must be evaluated within the specific chassis mounting configuration and holder/bracket design of the target application to confirm mechanical fit.

Electrical Equivalence: All electrical parameters—capacitance, tolerance, voltage rating, dielectric material, and operating temperature range—are identical between the main part and substitute, confirming functional interchangeability in motor run and power factor correction circuits.

Frequently Asked Questions (FAQ)

Q: Can the 37FD37225A-F be used as a direct replacement for the 37FD37225-F?

A: Yes, the 37FD37225A-F is electrically and mechanically equivalent. Both parts share identical capacitance (22.5 µF), voltage rating (370V AC), tolerance (±10%), dielectric material (polypropylene metallized), operating temperature range (-40°C to 70°C), package type (radial can), mounting configuration (chassis mount with holder/bracket), and termination style (quick connect/disconnect). The substitute is the recommended choice due to active product status and current manufacturing availability.

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

A: The 37FD37225A-F has a maximum seated height of 2.630" (66.80mm) compared to 2.880" (73.15mm) for the 37FD37225-F. This 0.250" reduction does not affect electrical performance. However, the physical height difference must be verified against the specific holder/bracket and chassis cavity dimensions of your application to ensure proper mechanical fit and clearance.

Q: Are both parts RoHS compliant?

A: Yes, both the 37FD37225-F and 37FD37225A-F are ROHS3 compliant, meeting current environmental and hazardous substance restrictions for industrial and commercial equipment.

Q: What applications are these capacitors designed for?

A: Both parts are specified for motor run and power factor correction (PFC) applications. The 370V AC rating and 22.5 µF capacitance are typical for three-phase motor circuits and industrial power conditioning systems.

Q: Why is the original part listed as obsolete?

A: The 37FD37225-F is classified as obsolete, indicating it is no longer in active production. The 37FD37225A-F represents the current active equivalent from the same manufacturer and series, ensuring continued availability and manufacturing support for new designs and field replacements.

Q: Are there any differences in packaging between these parts?

A: The main part is packaged in standard format, while the substitute (37FD37225A-F) is available in bulk packaging. Both maintain identical electrical and mechanical specifications. Packaging format does not affect component performance or compatibility.