Cornell Dubilier 21FB4415-F Film Capacitor 15µF 440VAC

Part Overview

The Cornell Dubilier Electronics (CDE) 21FB4415-F is a 15 µF film capacitor rated for 440V AC operation, designed for motor run and power factor correction (PFC) applications. This part carries an obsolete product status, making the identification of suitable alternatives essential for continued system support and component procurement. The 21FB4415-F utilizes polypropylene (PP) metallized dielectric technology in a radial, can-style package with chassis mount configuration requiring holder/bracket support.

Substiute Parts

21FB4415-F

Cornell Dubilier Electronics (CDE)In Stock: 80721FB4415-F Datasheet

Current PartRFQ

21FB4415A-F

Cornell Dubilier Electronics (CDE)In Stock: 82621FB4415A-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 21FB4415A-F qualifies as a direct substitute based on the following criteria:

Electrical Equivalence:

• Identical capacitance value: 15 µF
• Identical tolerance: ±10%
• Identical AC voltage rating: 440V
• Identical dielectric material: Polypropylene (PP), Metallized

Mechanical Compatibility:

• Identical package style: Radial, Can
• Identical mounting type: Chassis Mount, Requires Holder/Bracket
• Identical lead spacing: 0.813" (20.64mm)
• Identical termination: Quick Connect, Disconnect
• Compatible physical footprint: Both measure 1.875" Dia (47.63mm), with height variation within acceptable mechanical tolerances (original 2.780" vs. substitute 2.630")

Environmental & Compliance Alignment:

• Identical operating temperature range: -40°C ~ 70°C
• Identical RoHS compliance: ROHS3 Compliant
• Identical MSL rating: 1 (Unlimited)
• Identical ECCN and HTSUS classifications

Product Status Distinction: The substitute part (21FB4415A-F) maintains Active status, ensuring ongoing availability and support, whereas the original part is Obsolete.

Parameter Comparison

Engineering Selection Recommendations

The 21FB4415A-F is the recommended direct substitute for the obsolete 21FB4415-F. Both components are manufactured by Cornell Dubilier Electronics within the MPF series and maintain ROHS3 compliance with identical electrical and mechanical specifications. The substitute part offers the strategic advantage of Active product status, ensuring long-term availability, supply chain continuity, and manufacturer support.

The height differential of 0.150" (3.81mm) between the original and substitute represents a minor mechanical variation that does not alter mounting compatibility or electrical performance for chassis-mounted applications requiring holder/bracket support. Current inventory levels for both parts indicate adequate supply for immediate procurement needs.

Frequently Asked Questions (FAQ)

Q: Can the 21FB4415A-F directly replace the 21FB4415-F in existing designs?

A: Yes. Both components share identical electrical ratings (15 µF, ±10%, 440V AC), dielectric composition (Polypropylene metallized), and mechanical mounting specifications (Radial can package, 0.813" lead spacing, Quick Connect termination). The 0.150" height reduction in the substitute does not compromise chassis mount applications.

Q: What is the impact of the 21FB4415-F becoming obsolete?

A: Obsolescence affects long-term sourcing and manufacturer support continuity. The 21FB4415A-F, maintaining Active status, provides uninterrupted supply, technical documentation access, and component consistency for ongoing production and maintenance requirements.

Q: Are compliance certifications identical between these parts?

A: Yes. Both components carry identical RoHS3 compliance status, ROHS Compliant designation, Moisture Sensitivity Level 1 (Unlimited), and identical ECCN and HTSUS classifications, ensuring regulatory alignment across both parts.

Q: What is the practical significance of the height difference?

A: The 21FB4415A-F measures 2.630" seated height versus the original 2.780", representing a 0.150" reduction. For chassis-mounted applications utilizing holder/bracket assemblies, this dimension change does not affect fit, function, or electrical performance.

Q: Are both parts available from current inventory?

A: Yes. Current inventory shows 767 pcs of the original 21FB4415-F and 780 pcs of the substitute 21FB4415A-F available as new original stock, supporting immediate procurement decisions.