CAP-4/440 Equivalent & Substitute Parts

Part Overview

The CAP-4/440 is a 4 µF, 440 V aluminum electrolytic capacitor with radial, can-style QC terminals designed for HVAC applications. This component is classified as discontinued at DiGi Electronics, necessitating identification of active equivalent parts to maintain system functionality and ensure continued availability for repair and replacement operations.

Substiute Parts

CAP-4/440

Hartland Controls/LittelfuseIn Stock: 823CAP-4/440 Datasheet

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CAP-4/440R

Hartland Controls/LittelfuseIn Stock: 879CAP-4/440R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAP-4/440 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical capacitance (4 µF), voltage rating (440 V), tolerance (±3%), thermal lifetime (60000 Hrs @ 70°C), operating temperature range (-40°C ~ 70°C), polarization (Polar), package configuration (Radial, Can - QC Terminals), and mounting type (Chassis Mount). The CAP-4/440R meets all these requirements and is manufactured by the same supplier (Hartland Controls/Littelfuse) within the same HCK Motor Run series, ensuring functional and physical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The CAP-4/440R is the direct equivalent substitute for the discontinued CAP-4/440. Both components are manufactured by Hartland Controls/Littelfuse and share identical electrical specifications, thermal ratings, and mechanical configurations. The CAP-4/440R maintains active product status, ensuring ongoing availability and supply chain continuity. Selection of the CAP-4/440R eliminates obsolescence risk while preserving all functional and physical compatibility requirements for HVAC motor run applications. Both parts carry identical ECCN (EAR99) and HTSUS (8532.22.0055) classifications, confirming regulatory equivalence.

Frequently Asked Questions (FAQ)

Q: Can the CAP-4/440R be used as a direct replacement for the CAP-4/440?

A: Yes. The CAP-4/440R is a direct equivalent substitute. All electrical parameters (capacitance, voltage rating, tolerance, thermal lifetime, operating temperature range), mechanical configuration (radial can package with QC terminals), and mounting specifications are identical.

Q: What is the primary reason for substitution?

A: The CAP-4/440 is discontinued at DiGi Electronics. The CAP-4/440R is the active equivalent from the same manufacturer and series, providing continued availability for replacement and repair applications.

Q: Are there any differences in packaging between the two parts?

A: The CAP-4/440 is listed with packaging designation "-" while the CAP-4/440R is packaged in a Box. Both components use identical Radial, Can - QC Terminals package configuration and Chassis Mount mounting type. The packaging difference refers only to the distribution container, not the component itself.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the CAP-4/440 and CAP-4/440R carry identical ECCN (EAR99) and HTSUS (8532.22.0055) classifications, confirming regulatory and compliance equivalence.

Q: What is the inventory status of the substitute part?

A: The CAP-4/440R has 804 pieces in stock as new original inventory, compared to 733 pieces for the discontinued CAP-4/440. The substitute part is actively maintained in inventory.

Q: Are the thermal and lifetime specifications identical?

A: Yes. Both parts are rated for 60000 hours of operation at 70°C and operate across the identical temperature range of -40°C to 70°C, ensuring equivalent reliability and service life in HVAC applications.